67. Fertile stamens 3. Ovules 3. Bracteoles large. Tree—Species 20.
Central Africa. Some species yield timber. (Vouapa Aubl.)  Macrolobium Schreb.

Fertile stamens 10, rarely (Cynometra) more.  68

68. Petals very unequal. Leaves pinnate.  69

Petals equal or nearly equal.  71

69. Corolla of 1 large and 4 very small petals. Receptacle shortly cup-shaped.
Bracteoles minute. Leaves with 1-2 pairs of leaflets.—Species 1.
Equatorial West Africa.  Eurypetalum Harms

Corolla of 3 large and 2 small petals.  70

70. Bracteoles petal-like. Receptacle cup- or top-shaped.—Species 4.
West Africa. (Under Cynometra L.)  Hymenostegia Harms

Bracteoles sepal-like, hairy outside, equalling the bracts. Receptacle funnel-shaped. Sepals 4. Shrubs. Leaves with 3-4 pairs of leaflets.—Species
1. West Africa.  Loesenera Harms

71. Sepals 5, very unequal, the lowest very large. Receptacle very short.
Trees. Leaves pinnate.—Species 1. Madagascar.  Cymbosepalum Bak.

Sepals 4-5, equal or nearly equal.  72

72. Receptacle (calyx-tube) long and narrow. Sepals 4. Stalk of the ovary obliquely adnate to the receptacle.  73

Receptacle short and usually broad.  75

73. Bracteoles large, petaloid, enclosing the bud. Receptacle with a thick disc on one side. Shrubs. Leaves pinnate, with 2-4 leaflets.—Species
1. West Africa (Cameroons.)  Plagiosiphon Harms

Bracteoles small, not enclosing the bud, or wanting. Leaves simple or pinnate with many leaflets.  74

74. Leaves simple. Shrubs.—Species 2. West Africa (Cameroons).  Zenkerella Taub.

Leaves abruptly pinnate. Trees.—Species 1. West Africa (Cameroons).
The bark is used as a condiment.  Scorodophloeus Harms

75. Ovule 1. Stalk of the ovary obliquely adnate to the receptacle. Sepals 4.
Trees. Leaves simple.—Species 1. East Africa.  Podogynium Taub.

Ovules 2, rarely 3. Leaves abruptly pinnate.  76

76. Filaments united into a ring at the base, unequal, hairy. Sepals 5. Ovary glandular. Trees. Leaves with 3-6 pairs of leaflets. Flowers in terminal, many-flowered racemes.—Species 1. East Africa.  Stuhlmannia Taub.

Filaments free. Bracteoles none.  77

77. Flowers in panicles. Sepals short. Petals white. Filaments hairy at the base. Fruit flat, lanceolate, opening by two valves. Trees.—Species
1. South Africa (Cape Colony). Yields timber.  Umtiza Sim

Flowers in racemes or corymbs. Sepals usually long.  78

78. Flowers in terminal, few-flowered corymbs. Filaments hairy at the base. Fruit flat, ovate, beaked, opening by two valves. Low, glandular shrubs.—Species 1. East Africa (Somaliland). The seeds are edible.  Cordeauxia Hemsl.

Flowers in racemes springing from the axils of the leaves or from the old wood.  79

79. Fruit lanceolate, flat, bursting in the middle of the valves, but remaining closed at the sutures. Sepals 5. Corolla yellow. Filaments erect, hairy at the base. Stalk of the ovary free. Trees. (See 51.)  Haematoxylon L.

Fruit more or less ovate and turgid, opening in two valves. Filaments usually glabrous.—Species 20. West Africa and Madagascar. Some species yield timber and resin (copal).  Cynometra L.

80. (58.) Petals reduced to minute scales or wanting. Trees.  81

Petals well developed.  87

81. Bracteoles large, enclosing the bud, persisting during the time of flowering.
Calyx consisting of 1-5 scale-like sepals, or replaced by a 10-lobed disc, or wanting altogether.  82

Bracteoles small, not enclosing the bud, falling off early. Calyx of 4-5 well-developed sepals.  83

82. Disc fleshy. Petals 5, awl-shaped. Stamens 5-6. Stipules small, connate.—Species
4. West Africa.  Didelotia Baill.

Disc none. Stamens 10-20, more or less united at the base. Ovules few.
Fruit oblong or linear, opening in two valves. Seeds exalbuminous.—Species
20. Central Africa. The seeds of some species are eaten and the bark is used as a substitute for cloth. (Under Didelotia Baill.)  Brachystegia Benth.

83. Sepals 5. Petals 0. Stamens 5. Disc expanded. Ovary in its centre, subsessile. Ovules numerous. Style very short; stigma peltate.
Fruit linear, indehiscent. Seeds albuminous. Leaves equally pinnate.
Flowers polygamous-dioecious. Bracteoles very small, deciduous.—Species
1 (C. Siliqua L., carob-tree). North Africa. The fruits are edible, and used as fodder and for preparing brandy and medicaments; the seeds serve as a substitute for coffee.  Ceratonia L.

Sepals 4. Stamens 8-10. Disc not expanded.  84

84. Petals 5, scale-like. Stamens 10. Leaves equally pinnate. Flowers in panicles.—Species 12. Central and South Africa. They yield timber, gum, and edible seeds from which meal is prepared. (Theodora Medik.)  Schotia Jaqu.

Petals none.  85

85. Stamens 8, alternatingly unequal. Ovary sessile. Ovules numerous.
Leaves unequally pinnate. Flowers in compound racemes. Bracteoles
linear.—Species 1. Equatorial West Africa (Gaboon).  Hylodendron Taub.

Stamens 10, rarely 8, but then equal in length. Ovary short-stalked.
Ovules few.  86

86. Stamens unequal, 10. Fruit oblong, winged, indehiscent. Seeds pendulous.
Leaves equally pinnate. Flowers in simple racemes.—Species
1. Madagascar.  Apaloxylon Drake

Stamens equal in length. Fruit broad-oblong to orbicular, dehiscing in two valves. Leaves unequally pinnate.—Species 5. Central Africa to Delagoa Bay. (Apalatoa Aubl.)  Crudia Schreb.

87. (80.) Well developed petal 1; sometimes 2-4 rudimentary petals in addition. Trees.  88

Well developed petals 3-6. Leaves abruptly pinnate.  93

88. Petal sessile. Sepals 4. Leaves abruptly pinnate.  89

Petal with a long claw.  90

89. Receptacle minute. Sepals scale-like. Petal orbicular. Stamens 3, short. Ovary with a short stalk. Ovules 4. Stigma truncate. Bracteoles large, enclosing the bud, persistent at flowering. (See 65.)  Cryptosepalum Benth.

Receptacle rather large, narrowly top-shaped. Sepals large, coloured.
Petal oblong. Stamens 10, long. Ovary with a long stalk. Ovules numerous. Stigma capitate. Bracteoles falling off early.—Species 3.
West Africa. They yield timber and an aromatic resin.  Daniella Benn.

90. Fertile stamens 3.  91

Fertile stamens 5-10.  92

91. Bracteoles enclosing the bud, persisting at flowering. Petal folded together in the bud. Flowers small or middle-sized. (See 67.)  Macrolobium Schreb.

Bracteoles shorter than the bud, falling off during the time of flowering.
Receptacle elongated. Sepals 4. Fruit oblong. Flowers rather large.—Species
1. Madagascar and neighbouring islands. It yields timber, edible seeds, and medicaments. (Under Afzelia Smith).  Intsia Thouars

92. Fertile stamens 6-8. Sepals 4. Bracteoles shorter than the bud. Seed with an aril.—Species 4. Central Africa to Delagoa Bay. They yield timber; the aril is edible, the seeds are poisonous and used medicinally.
(Under Intsia Thouars)  Afzelia Smith

Fertile stamens 5 or 10. Sepals usually 5. Petal folded in bud, whitish.
Bracteoles enclosing the bud.—Species 15. Central Africa. The wood and the bark are used, the latter for making cloth.  Berlinia Soland.

93. (87.) Sepals 6-7. Petals 6, subequal. Fertile stamens 6-8, barren ones
4-7. Trees.—Species 1. East Africa.  Englerodendron Harms

Sepals 4-5.  94

94. Sepals 5. Trees.  95

Sepals 4.  96

95. Petals more or less unequal, white or yellowish. Stamens 5 or 10. Fruit dehiscent. Bracteoles enclosing the bud. (See 92.)  Berlinia Soland.

Petals subequal, red. Stamens 10. Fruit winged, indehiscent. Seeds pendulous.—Species 1. Madagascar.  Bathiaea Drake

96. Fertile stamens 3. Petals unequal, 3 of them larger than the other two.
Trees.  97

Fertile stamens 10 or more.  98

97. Filaments united nearly half their length. Petals yellowish or red-striped.
Fruit indehiscent. Leaves with many pairs of leaflets. Bracteoles narrow, falling off early.—Species 3. Tropics. They yield timber, tanning and dyeing materials, edible fruits from which drinks and medicaments are prepared, and oily seeds.  Tamarindus L.

Filaments free. Fruit dehiscent. Bracteoles large, enclosing the bud.
(See 67.)  Macrolobium Schreb.

98. Stamens numerous, united at the base. Anthers linear. Petals subequal.
Bracteoles enclosing the bud. Trees.—Species 1. West Africa.  Polystemonanthus Harms

Stamens 10.  99

99. Bracteoles large, enclosing the bud.  100

Bracteoles small, not enclosing the bud, falling off early.  101

100. Petals very unequal, 3 large, 2 very small. Filaments united at the base.
Ovules numerous. Leaves with several pairs of leaflets. Flowers in panicles.—Species 3. West Africa. They yield timber and resin.
(Under Daniella Benn.)  Cyanothyrsus Harms

Petals subequal. Ovules few. Shrubs. Leaves with 1-2 pairs of leaflets. Flowers in racemes. Bracteoles petaloid. (See 73.)  Plagiosiphon Harms

101. Filaments, excepting one, united high up. Petals pink, narrow; blade passing gradually into the claw. Sepals unequal, subvalvate in bud.
Receptacle very short. Flowers in racemes or panicles. Leaflets 7-9, alternate.—Species 1. Equatorial West Africa.  Tessmannia Harms

Filaments free or united at the base.  102

102. Petals sessile or nearly so, subequal, red. Leaves with 2-16 pairs of leaflets. Flower in panicles. (See 84.)  Schotia Jacq.

Petals with a long or rather long claw. Trees.  103

103. Sepals slightly imbricate. Petals subequal. Filaments, excepting one, united at the base. Leaves with 1-4 pairs of leaflets. Flowers large, in racemes.—Species 7. West Africa to the Great Lakes.  Baikiaea Benth.

Sepals much imbricate. Petals white. Filaments free. Ovules few.
Leaves with one pair of leaflets. Flowers in panicles.—Species 2.
Tropics. They yield timber and resin (copal) which is used for turnery and carving and for making lacs and varnishes. (Under Hymenaea L.)  Trachylobium Hayne

104. (28.) Filaments free or nearly so. Shrubs or trees.  105

Filaments, all or all excepting one, united into a tube or sheath.  126

105. Stamens 4-5. Filaments very short. Anthers attached by the base, opening at the top; 2-3 of them united. Ovary 4-winged. Ovules 2.
Stigma terminal. Calyx-lobes 4, unequal. Petals 5, shorter than the calyx, unequal, red. Leaves pinnate. (See 56.)  Duparquetia Baill.

Stamens 8-10. [Tribes SOPHOREAE and PODALYRIEAE.]  106

106. Leaves simple and undivided or unifoliolate. Corolla papilionaceous.  107

Leaves pinnate or palmately trifoliolate.  112

107. Calyx shortly toothed, not slit. Corolla whitish; petals of the keel slightly cohering. Ovules few. Shrubs with arched or climbing branches. Stipules ovate or lanceolate. Flowers in racemes or panicles.
Bracteoles large, enclosing the flower, persistent.—Species 1. West
Africa.  Dalhousiea Grah.

Calyx shortly toothed but slitting as the flower expands, on one or both sides, or deeply cleft. Bracteoles not enclosing the flower, rather large but deciduous, or small.  108

108. Calyx shortly toothed, but deeply slit in one or two places. Corolla white or yellow; petals of the keel free or nearly so. Ovules few.  109

Calyx subequally 4-5-cleft. Stipules awl-shaped or wanting.  110

109. Anthers longer than the filaments. Ovary long-stalked. Calyx slit on one side. Corolla white; petals of the keel free. Fruit long-stalked, falcate-ovate, turgid. Seeds oblong, with a thick aril. Flowers in panicles. Bracteoles small.—Species 1. West Africa.  Leucomphalus Benth.

Anthers shorter than the filaments. Ovary nearly sessile. Fruit compressed.
Seeds ovate or orbicular.—Species 50. Tropical and South-east
Africa. Some of them yield timber (camwood), dye-stuffs, or edible fruits. (Including Bracteolaria Hochst.)  Baphia Afz.

110. Petals of the keel free. Flowers in 5-10-flowered racemes.—Species 1.
West Africa.  Ormosia Jacks.

Petals of the keel united. Flowers solitary or in 2-4-flowered fascicles.  111

111. Corolla yellow; keel shortly beaked. Fruit compressed. Leaves sessile, without stipules. Flowers solitary.—Species 10. South Africa. The leaves are used as a substitute for tea or as a medicament.  Cyclopia Vent.

Corolla red or reddish-white; keel blunt. Ovary sessile. Fruit turgid.
Leaves short-stalked, with deciduous stipules. Hairy plants.—Species
20. South Africa.  Podalyria Lam.

112. (106.) Leaves palmately trifoliolate. Corolla papilionaceous.  113

Leaves pinnate.  115

113. Petals subequal, yellow, those of the keel united. Ovary sessile or nearly so. Fruit oblong, not septate. Erect shrubs. Leaves sessile, leathery, exstipulate. Flowers solitary, axillary, with bracteoles. (See 111.)  Cyclopia Vent.

Petals of the keel free. Ovary stalked. Fruit linear. Leaves stalked,
stipulate. Flowers in racemes.  114

114. Standard shorter than the wings. Petals yellow. Fruit septate between the seeds. Erect shrubs. Leaves herbaceous; stipules connate.
Flowers without bracteoles.—Species 2. North Africa. Poisonous and medicinal.  Anagyris L.

Standard as long as or longer than the wings. Petals clawed, yellowish-white.
Climbing shrubs. Leaves leathery. Flowers with small, deciduous bracteoles.—Species 3. West Africa. (Giganthemum Welw.)  Camoënsia Welw.

115. Corolla nearly regular; petals subequal.  116

Corolla papilionaceous; petals conspicuously unequal, at least one of them (the standard) very different from the others.  118

116. Petals entire. Anthers linear, Ovules more than 2. (See 34.)  Cadia Forsk.

Petals 2-lobed or 2-cleft. Anthers ovate. Ovules 1-2.  117

117. Petals shortly lobed. Ovary short-stalked. Leaflets 9-11. Flowers in racemes.—Species 1. Northern East Africa (Somaliland).  Dicraeopetalum Harms

Petals deeply left. Ovary long-stalked. Leaflets 13-19. Flowers in panicles.—Species 2. Equatorial West Africa (Gaboon).  Amphimas Pierre

118. Petals of the keel united.  119

Petals of the keel free.  121

119. Petals long-clawed, red. Ovary sessile. Ovules few. Fruit compressed, not winged, leathery, dehiscing in two valves. Trees. Flowers in racemes. Bracteoles none.—Species 1. South Africa and St.
Helena. Yields timber and is used as an ornamental plant.  Virgilia Lam.

Petals short- or not clawed, white, yellow or violet. Ovary more or less distinctly stalked. Fruit tardily or not dehiscing.  120

120. Fruit compressed, winged at the upper suture, membranous. Calyx-lobes unequal. Petals yellow; those of the keel curved. Flowers in racemes.
Bracteoles none.—Species 9. South and Central Africa.  Calpurnia E. Mey.

Fruit terete or nearly so, constricted between the seeds, 4-winged or wingless, leathery, woody or fleshy.—Species 6. Tropical and South-east
Africa. They yield timber, dye-stuffs, and medicaments, and are also used as ornamental plants.  Sophora L.

121. Standard broad-oblong or narrow-ovate, clawed and auricled. Calyx very shortly toothed. Filaments slightly united at the base, excepting one. Ovary long-stalked, hairy. Style very short, almost straight.
Ovules numerous. Trees. Flowers in panicles.—Species 1. Madagascar.
(Under Cadia Forsk.)  Pseudocadia Harms

Standard broad-ovate or orbicular. Ovary short-stalked or almost
sessile.  122

122. Calyx shortly toothed or entire. Stigma terminal. Fruit almost terete, constricted between the seeds.  123

Calyx deeply cleft. Fruit flat.  124

123. Stalk of the ovary obliquely adnate to the curved receptacle (calyx-tube).
Standard suborbicular, slightly exceeding the other petals. Filaments free. Flowers in racemes arising from the old wood.—Species 5.
Central Africa.  Angylocalyx Taub.

Stalk of the ovary not adnate to the receptacle. Style curved at the apex. Flowers in terminal racemes or panicles. (See 120.)  Sophora L.

124. Ovule 1. Stigma terminal. Flowers in racemes. Leaflets 5-7.—Species
1. East Africa.  Platycelephium Harms

Ovules 2 or more. Leaflets 7-13.  125

125. Stigma terminal. Corolla blue. Flowers in racemes. Leaflets curved and pointed.—Species 1. South Africa.  Bolusanthus Harms

Stigma lateral. Corolla red or green. Flowers in panicles.—Species 2.
West Africa. They yield timber.  Afrormosia Harms

126. (104.) Filaments all, or the alternate ones, broadened at the apex. [Especially tribe LOTEAE.]  127

Filaments not broadened at the apex.  147

127. Filaments monadelphous, i.e., all united into a tube or sheath, at least when young.  128

Filaments diadelphous, i.e., united into a sheath, excepting one, which is free from the others, at least at the base, but sometimes connate with them in the middle or slightly cohering with them at the very base.  131

128. Leaves equally pinnate or reduced to the broadened stalk, usually ending in a tendril or bristle. Stipules large, leaf-like. Flowers solitary or in racemes, without bracteoles. Petals short-clawed. Anthers all alike.
Ovary more or less distinctly stalked. Style-apex bearded on the inner face. Fruit opening by two valves. Herbs.—Species 35. North
Africa and the mountains of the tropics. Several species yield edible tubers or seeds, vegetables, fodder, medicaments, or perfumes; some are poisonous or used as ornamental plants. (Including Orobus L.)  Lathyrus L.

Leaves unequally pinnate, digitate, or unifoliolate. Style glabrous.  129

129. Leaflets minutely toothed, 1 or 3, very rarely more. Stipules adnate to the leaf-stalk. Flowers solitary or in racemes. Calyx-lobes long, subequal. Petals short-clawed. Anthers usually of two kinds. Ovary more or less distinctly stalked. Fruit dehiscing by two valves.—Species
60. North Africa and Abyssinia. Some are used as vegetables or in medicine.  Ononis L.

Leaflets entire. Stipules small or wanting. Flowers in heads or umbels, sometimes almost solitary. Petals long-clawed. Anthers all alike.
Fruit not or tardily dehiscing.  130

130. Ovary sessile. Ovules 2. Fruit protruding beyond the calyx, linear,
shortly or not beaked, slightly 4-angled, spirally coiled. Silky herbs.
Flowers in umbels, very small, reddish-yellow, without bracteoles.—Species
1. Abyssinia.  Helminthocarpum A. Rich.

Ovary more or less distinctly stalked. Fruit enclosed by the calyx or slightly protruding; in the latter case beaked. Flowers in heads or nearly solitary.—Species 12. North Africa and Abyssinia. Some species (especially A. Vulneraria L.) are used as fodder-, dyeing-, medicinal-, or ornamental plants. (Including Cornicina Boiss., Dorycnopsis
Boiss., and Physanthyllis Boiss.)  Anthyllis L.

131. (127.) Keel beaked.  132

Keel blunt or somewhat pointed.  138

132. Ovary short-stalked. Ovules 2. Calyx deeply and equally divided.
Corolla yellow. Fruit spirally coiled, flat, margined, indehiscent.
Herbs. Lowermost leaves simple, with adnate stipules, upper pinnate, without stipules. Flowers in few-flowered heads.—Species 1. North
Africa. (Circinus Medik.)  Hymenocarpos Savi

Ovary sessile. Ovules more than two. Calyx more or less unequally divided. Flowers solitary or in umbels.  133

133. Leaves simple, undivided. Stipules adnate to the leafstalk. Upper calyx-teeth united high up. Petals long-clawed, yellow. Fruit spirally coiled, almost terete, ribbed. Herbs.—Species 5. North Africa and
Abyssinia.  Scorpiurus L.

Leaves pinnate, sometimes apparently digitate.  134

134. Fruit jointed.  135

Fruit not jointed. Herbs or undershrubs.  136

135. Joints of the fruit and seeds curved. Fruit more or less flattened, with the upper edge notched at each seed. Corolla yellow. Leaves with 5 or more leaflets.—Species 9. North Africa.  Hippocrepis L.

Joints of the fruit and seeds straight, oblong. Fruit not or slightly flattened. Leaves with 3 or more leaflets, stipulate.—Species 12.
North Africa. Some species are poisonous or used as ornamental or medicinal plants.  Coronilla L.

136. Leaves with many leaflets. Stipules small, membranous. Corolla yellow. Fruit flat, slightly curved. Seeds quadrate. Glabrous herbs.—Species
1. North Africa. (Bonaveria Scop., Securidaca Gaertn.).  Securigera DC.

Leaves with 4-5 leaflets, of which the 1-2 lowest have usually the appearance of stipules. Stipules very small or wanting. Keel gibbous on each side. Seeds globular or lenticular.  137

137. Fruit longitudinally 4-winged or 4-angled.—Species 5. North Africa.
Used as fodder or as vegetables. (Under Lotus L.)  Tetragonolobus Scop.

Fruit neither 4-winged nor 4-angled.—Species 50. Some of them are used as vegetables, fodder, or ornamental plants. (Including Heinekenia
Webb, Lotea Medik., and Pedrosia Lowe).  Lotus L.

138. (131.) Petals, at least the lower, adnate below to the staminal tube.
Standard oblong or ovate. Erect or prostrate herbs. Leaves pinnate or palmate; leaflets 3-5, usually toothed. Stipules adnate to the leafstalk. Flowers solitary or in umbels, heads, or spikes.—Species 70.
North and South Africa and mountains of Central Africa. Many of them are used as fodder or in medicine. “Clover.”  Trifolium L.

Petals free from the staminal tube. Leaflets entire, rarely toothed, but then more than 5. Stipules usually free or wanting.  139

139. Leaves unifoliolate, stipellate; stalk winged. Flowers in spikes. Calyx-lobes unequal. Uppermost stamen free at the base, but united with the others in the middle. Ovary sessile. Ovules 3-4.—Species 4.
Central Africa. (Under Desmodium Desv.)  Droogmansia De Wild.

Leaves pinnate, digitate, or reduced to the usually broadened stalk.  140

140. Leaves equally pinnate or reduced to the stalk. Leaflets entire. Stipules leaf-like. Flowers solitary or in racemes. Ovary more or less distinctly stalked. Style-apex broadened and bearded. Fruit 2-valved.
Seeds with an outgrowth near the hilum. Herbs or undershrubs.  141

Leaves unequally pinnate or digitate. Ovary sessile or nearly so.  142

141. Style-apex laterally compressed with reflexed edges, hence grooved above. Corolla white or red; wings adhering to the keel. Herbs with tendrils. Leaflets 2-6.—Species 3. North Africa, also cultivated in the tropics. They yield fodder and edible seeds (peas), from which also starch is prepared.  Pisum L.

Style-apex compressed dorsally, with the edges bent downwards or straight. (See 128.).  Lathyrus L.

142. Stem woody throughout. Leaves unequally pinnate. Flowers in racemes or fascicles. Upper calyx-teeth united for the greatest part.
Corolla red or violet; wings slightly adhering to the keel; standard with a callus at the base. Fruit linear, flat.—Species 15. Tropical and South-east Africa. The seeds of some species are used as a fish-poison.  Mundulea DC.

Stem herbaceous or woody at the base only.  143

143. Flowers in racemes. Calyx-teeth unequal. Corolla blue; standard suborbicular, with a callus and two auricles; keel somewhat longer than the wings and the standard. Uppermost stamen cohering with the others at the base. Style-apex bearded. Ovules 2. Twining undershrubs.—Species
1. Equatorial East Africa (Kilimandjaro).  Spathionema Taub.

Flowers solitary or in umbels or heads.  144

144. Leaflets toothed. Stipules leaf-like. Flowers solitary. Corolla white or blue. Fruit ovate to oblong, turgid, 2-valved.—Species 2. North
Africa and Abyssinia; one species also cultivated in Angola. They yield edible seeds (chick-peas) and are used medicinally.  Cicer L.

Leaflets entire. Flowers in umbels or heads, rarely solitary, but then
corolla yellow.  145

145. Leaflets numerous. Leaf-stalk long. Flowers very small, in heads or umbels. Keel nearly straight. Fruit jointed.—Species 6. North
Africa and high mountains of Central Africa. Some are used as fodder.
“Birds-foot.” (Including Arthrolobium Desv.)  Ornithopus L.

Leaflets 3-5, the lower usually stipule-like. Leaf-stalk short or wanting.  146

146. Corolla yellow; standard suborbicular, with a long claw. Fruit jointed.
Undershrubs with long silky hairs. Stipules small. Flowers solitary or
2-3 together in the axils of the leaves.—Species 1. North-west Africa
(Algeria). (Ludovicia Coss.)  Hammatolobium Fenzl

Corolla white or red; standard oblong or ovate, short-clawed; wings coherent towards the apex, longitudinally folded or transversely gibbous; keel gibbous on each side. Fruit continuous, terete, 2-valved.
Stipules very small or wanting.—Species 6. North Africa. (Including
Bonjeania Reichb.)  Dorycnium Vill.

147. (126.) Anthers of two kinds, five shorter and attached by the back, the others longer and attached by the base, or the alternate ones rudimentary.  148

Anthers all alike.  205

148. Leaves digitate, unifoliolate, simple, or wanting. [Tribe GENISTEAE.]  149

Leaves pinnate, but sometimes with three leaflets.  195

149. Uppermost stamen free or nearly so.  150

Uppermost stamen united with the others into a tube or sheath.  158

150. Stem herbaceous or woody at the base only. Leaves stipulate.  151

Stem woody throughout. Leaves usually exstipulate.  154

151. Keel with a straight beak. Anthers bearded. Stigma lateral. Fruit linear. Leaves simple, sessile. Flowers in axillary racemes.—Species
2. Southern West Africa. (Under Indigofera L.)  Rhynchotropis Harms

Keel with a spirally twisted beak or without a beak. Anthers not bearded.
Stigma terminal. Leaves unifoliolate or digitate.  152

152. Keel spirally beaked. Fruit oblong. Flowers opposite the leaves, solitary or 2-3 together. Bracteoles 2.—Species 2. South Africa to
Amboland.  Bolusia Benth.

Keel curved inwards, not beaked. Flowers in axillary or terminal inflorescences. Bracteoles none.  153

153. Keel somewhat pointed. Ovules several. Fruit linear. Leaves digitate.
Corolla reddish.—Species 1. East Africa.  Parochetus Hamilt.

Keel blunt. Ovule 1. Fruit ovate. Gland-dotted plants.—Species 60.
Some are used as ornamental or medicinal plants.  Psoralea L.

154. Keel with a lateral gibbosity or spur. Anthers distinctly unequal. Leaves simple.  155

Keel without a lateral appendage. Anthers nearly equal.  156

155. Keel beaked. Corolla yellowish-green, shorter than the calyx. Ovule
1. Flowers in small terminal heads.—Species 1. South Africa (Cape
Colony).  Lathriogyne Eckl. & Zeyh.

Keel blunt. Corolla red or white, longer than the calyx.—Species 10.
South Africa.  Amphithalea Eckl. & Zeyh.

156. Corolla blue, red, or white. Ovule 1. Leaves unifoliolate or digitate, stipulate. (See 153.)  Psoralea L.

Corolla yellow. Ovules 2 or more. Leaves simple, exstipulate.  157

157. Calyx-lobes very unequal, the lowest very large and petaloid. Standard ovate or oblong; wings oblong. Inflorescence surrounded by large bracts.—Species 4. South Africa.  Liparia L.

Calyx-lobes about equal. Standard suborbicular; wings obovate. Bracts not very large.—Species 15. South Africa.  Priestleya DC.

158. (149.) Filaments united into a sheath which is slit above.  159

Filaments united into a tube which is closed all round.  180

159. Style bearded or ciliate on the inside towards the apex.  160

Style glabrous inside.  161

160. Fruit flat, oblong or ovate, stalked, downy, 2-seeded. Shrubs. Leaves trifoliolate.—Species 1. Island of Socotra.  Priotropis Wight & Arn.

Fruit turgid.—Species 220. Tropical and South Africa and Egypt.
Some yield fibres, dyes, vegetables, and medicaments, or serve as ornamental plants.  Crotalaria L.

161. Ovule 1.  162

Ovules 2 or more.  163

162. Leaves stipulate. Flowers ebracteolate, blue, pink or white. Keel incurved. Fruit indehiscent. Seeds without an outgrowth at the hilum, adhering to the pericarp. Gland-dotted plants. (See 153.)  Psoralea L.

Leaves exstipulate. Flowers bracteolate, red, yellow or white. Keel almost straight, gibbous at each side. Fruit dehiscing by two valves.
Seeds with an outgrowth at the hilum. Silky-hairy shrubs. Leaves simple, sessile. Flowers usually in pairs in the axils of the leaves.—Species
8. South Africa.  Coelidium Vog.

163. Leaves simple and undivided or unifoliolate, usually exstipulate.  164

Leaves digitate, with 3, rarely 5-7 leaflets, usually stipulate.  171

164. Calyx-lobes distinctly unequal, the 1-3 lowest usually narrower than the rest.  165

Calyx-lobes about equal.  169

165. Petals adnate at the base to the staminal tube, yellow; wings auricled at the base; keel with a blunt spur at each side. Ovules 2. Shrubs clothed with long hairs. Leaves stalked, linear. Flowers axillary.
Bracteoles leaf-like.—Species 1. South Africa (Cape Colony).  Walpersia Harv.

Petals free from the staminal tube.  166

166. Petals red, long-clawed, glabrous. Fruit ovate, turgid. Prostrate undershrubs clothed with long reddish-brown hairs. Leaves imbricate sessile, lanceolate. Flowers in short racemes.—Species 1. South
Africa (Cape Colony).  Euchlora Eckl. & Zeyh.

Petals yellow, rarely white or red, but then short-clawed and leaves fascicled.  167

167. Leaves in tufts of 3 or more, usually thread-shaped.—Species 150. South
Africa.  Aspalathus L.

Leaves scattered, flat. Petals yellow. Fruit linear or lanceolate, more or less flattened.  168

168. Plant hairy. Leaves stalked.—Species 90.  Lotononis DC.

Plant glabrous.—Species 30. South Africa. Some are used medicinally.  Rafnia Thunb.

169. Leaves more or less distinctly stalked, narrow, usually thread-shaped.
Flowers in racemes, yellow. Fruit linear. Funicle very short.—Species
25. South Africa.  Lebeckia Thunb.

Leaves sessile.  170

170. Leaves many-nerved, flat, stiff. Calyx 5-cleft, with pungent segments.
Corolla yellow; standard villous. Fruit linear or lanceolate, slightly flattened.—Species 15. South Africa.  Borbonia L.

Leaves one- or few-nerved, usually thread-shaped and in tufts. Fruit obliquely-ovate or -lanceolate. Funicle filiform. (See 167.)  Aspalathus L.

171. (163.) Calyx 2-lipped, the upper lip 2-toothed or 2-parted, the lower
3-toothed or 3-parted. Corolla yellow. Fruit linear.  172

Calyx not 2-lipped, all segments subequal or the 4 upper ones united in pairs.  174

172. Keel longer than the standard and the wings. Calyx deeply two-lipped.
Fruit flat, somewhat constricted and with thin partitions between the seeds, not glandular. Undershrubs. Leaves exstipulate. Flowers solitary. Bracteoles small.—Species 4. South Africa.  Dichilus DC.

Keel shorter than the standard. Leaves stipulate.  173

173. Fruit glandular-hairy or viscid, flat, usually constricted between the seeds. Calyx tubular, usually shortly two-lipped. Shrubs or undershrubs.
Flowers in spikes or racemes. Bracteoles mostly leaf-like.—Species
12. South Africa.  Melolobium Eckl. & Zeyh.

Fruit hairy, but not glandular. Calyx deeply two-lipped. Standard suborbicular. Bracteoles usually small.—Species 60. (Tephrothamnus
Sweet, including Macrolotus Harms)  Argyrolobium Eckl. & Zeyh.

174. Calyx-lobes distinctly unequal, the upper 4 united in pairs, the lowest separate and narrow.  175

Calyx-lobes about equal.  177

175. Keel and style straight. Standard spatulate. Bracteoles bristle-like.—Species
3. South Africa. (Pleiospora Harv.)  Phaenohoffmannia O. Ktze.

Keel and style curved inwards. Bracteoles none.  176

176. Fruit flattened, repeatedly folded and twisted from side to side. Corolla yellow; keel exceeding the standard. Stigma oblique. Herbs.
Flowers in racemes.—Species 1. South Africa (Cape Colony).  Listia E. Mey.

Fruit slightly flattened or turgid, straight or curved. (See 168.)  Lotononis L.

177. Fruit winged, flat, ovate or oblong, stalked, indehiscent. Petals long-clawed, yellow; keel exceeding the standard. Ovary stalked. Ovules few. Shrubs. Flowers in racemes.—Species 7. South Africa.
(Viborgia Thunb.)  Wiborgia Thunb.

Fruit not winged. Ovules usually numerous.  178

178. Fruit ovate, 1-3-seeded. Corolla white, yellowish, or red; standard with a long claw, clothed with long hairs. Shrubs. Flowers in spikes or heads, without bracteoles.—Species 10. South Africa.  Buchenroedera Eckl. & Zeyh.

Fruit linear, lanceolate, or oblong.  179

179. Seeds with a very short funicle. Fruit linear. Corolla yellow. Shrubs or undershrubs. Leaves exstipulate. Flowers in terminal racemes.
(See 169.)  Lebeckia Thunb.

Seeds with a long funicle. Fruit flattened or slightly inflated. Leaves usually stipulate. (See 168.)  Lotononis L.

180. (158.) Ovule 1. Fruit ovate, indehiscent; pericarp adhering to the seed.
Gland-dotted plants. Stipules stem-clasping. Corolla blue, rose, or white. Bracteoles none. (See 153.)  Psoralea L.

Ovules 2 or more.  181

181. Calyx 2-lipped.  182

Calyx subequally 5-toothed or 5-cleft. Leaves 1- or 3-foliolate.  191

182. Calyx deeply 2-lipped.  183

Calyx slightly 2-lipped. Leaves 1-3-foliolate or wanting.  188

183. Leaves reduced to scales or spines. Spinous shrubs. Calyx and corolla yellow. Fruit oblong or ovate, 1-4-seeded.—Species 6. North
Africa; one species (U. europaeus L.) also naturalized in South Africa, the Mascarenes, and St. Helena. This species is used as a garden- or hedge-plant and furnishes a dye-stuff, fodder, and a substitute for tea.
“Furze.”  Ulex L.

Leaves digitate, with 2-9 leaflets.  184

184. Leaflets 5-9. Stipules adnate to the leafstalk. Keel beaked; wings cohering at the apex.—Species 10. North and Central Africa. They
yield manure, fodder, vegetables, medicaments, and edible seeds which serve also as a substitute for coffee; several species are used as ornamental plants.  Lupinus L.

Leaflets 2-4. Stipules usually free. Wings free.  185

185. Leaflets 2 or 4, very rarely 3. Lateral calyx-lobes much shorter than the others. Fruit jointed, bristly or spiny, indehiscent. Herbs or undershrubs.—Species
3. Tropical and South Africa. Used as fodder.  Zornia Gmel.

Leaflets 3. Fruit not jointed, dehiscing by two valves.  186

186. Fruit covered with glandular tubercles or hairs. Seeds without an outgrowth at the hilum. Corolla yellow; keel curved inwards.
Shrubs.—Species 7. North and Central Africa.  Adenocarpus DC.

Fruit not glandular, but usually hairy.  187

187. Seeds with an outgrowth at the hilum. Shrubs.—Species 15. North
Africa. Some are poisonous or are used as ornamental or medicinal plants. (Including Sarothamnus Wimm., Spartocytisus Webb, and
Teline Medik.)  Cytisus L.

Seeds without an outgrowth at the hilum. Herbs or undershrubs, rarely shrubs. Corolla yellow. (See 173.)  Argyrolobium Eckl. & Zeyh.

188. (182.) Calyx sheath-like, split on one side after flowering. Corolla yellow; keel and wings adnate below to the staminal tube; keel acuminate, curved inwards; wings obovate. Stigma oblique.
Fruit linear. Seeds without an outgrowth at the hilum. Shrubs or trees. Leaves unifoliolate, without stipules.—Species 1 (S. junceum
L., Spanish broom). North Africa. Yields fibres and medicaments and is used as an ornamental plant.  Spartium L.

Calyx not sheath-like. Keel obtuse or free from the staminal tube.  189

189. Seeds with an outgrowth at the hilum. Fruit linear or oblong, flat.
Petals free from the staminal tube. Shrubs. (See 187.)  Cytisus L.

Seeds without an outgrowth at the hilum.  190

190. Keel distinctly curved inwards; wings and keel free from the staminal tube; standard suborbicular. Fruit linear or oblong, flat, covered with glandular tubercles or hairs. Shrubs. Leaves trifoliolate, with small stipules. Flowers in racemes, yellow. (See 186.)  Adenocarpus DC.

Keel straight or nearly so, blunt, gibbous at each side; wings and keel usually adnate to the staminal tube; the former oblong; standard ovate. Fruit usually inflated. Shrubs or undershrubs.—Species 40.
North Africa. Some species yield fibres, dyes, and medicaments, or serve as ornamental plants. (Including Retama Boiss.)  Genista L.

191. (181.) Calyx deeply divided. Ovary more or less distinctly stalked.
Leaflets minutely toothed. Stipules adnate to the leaf-stalk. (See
129.)  Ononis L.

Calyx shortly toothed. Filaments not broadened above. Ovary sessile
or nearly so. Leaflets entire.  192

192. Calyx obscurely toothed, coloured. Corolla yellow, free from the staminal tube. Fruit thickened or winged at the upper suture. Seeds without an outgrowth at the hilum. Spinous shrubs. Leaves digitate, without stipules. Flowers solitary or in fascicles.—Species 3. North Africa.
Used medicinally.  Calycotome Link

Calyx distinctly toothed. Corolla red, blue, or white.  193

193. Petals with a long claw, blue or violet; wings and keel adnate at the base to the staminal tube. Fruit oblong, glandular-hairy. Seeds without an outgrowth at the hilum. Spinous shrubs. Leaves trifoliolate on the young branches, unifoliolate on the older. Flowers solitary or in fascicles. Bracteoles small, leaf-like.—Species 1.
North Africa (Algeria). Used medicinally.  Erinacea Boiss.

Petals with a short claw or sessile, free from the staminal tube. Seeds with an outgrowth at the hilum. Unarmed plants. Leaves trifoliolate.
Flowers in racemes or panicles.  194

194. Keel shorter than the standard. Corolla red or violet. Fruit linear, many-seeded. Shrubs. Bracteoles bristle-like.—Species 1. South
Africa (Cape Colony).  Hypocalyptus Thunb.

Keel longer than the standard. Corolla red or white. Fruit ovate-lanceolate, few-seeded. Undershrubs.—Species 1. South Africa
(Cape Colony).  Loddigesia Sims

195. (148.) Leaves equally pinnate.  196

Leaves unequally pinnate.  197

196. Leaflets 4. Flowers solitary or in spikes. Calyx with a long, narrow tube and unequal lobes. Corolla yellow or whitish; keel beaked.
Filaments all united. Ovules 2-3. Fruit oblong, inflated, continuous within, indehiscent, ripening beneath the soil. Stem herbaceous.—Species
1 (A. hypogaea L., ground-nut). Cultivated.
The seeds are edible and yield oil; the leaves are used as a vegetable or as fodder.  Arachis L.

Leaflets numerous. Flowers in racemes. Calyx with a wide tube, truncate or with subequal lobes. Keel blunt or somewhat pointed.
Filaments united, excepting one. Ovules numerous. Fruit linear, with transverse partitions.—Species 15. Tropics to Natal and Egypt.
Some species yield timber, fibre, fodder, or medicaments, or serve as garden- or hedge-plants.  Sesbania Pers.

197. Leaflets 3.  198

Leaflets numerous.  203

198. Leaflets with stipels.  199

Leaflets without stipels.  201

199. Filaments all united. Corolla red; standard unappendaged; keel almost straight, blunt, shorter than the wings. Style short and thick. Flowers very small. Twining herbs.—Species 3. Tropical and South-east
Africa. Used medicinally.  Teramnus Swartz

Filaments united, excepting the uppermost, which is free at least at the base. Standard auricled at the base; keel curved. Flowers large or rather large.  200

200. Uppermost stamens free at the base, but united with the others at the middle. Corolla red; keel somewhat shorter than the wings. Twining shrubs.—Species 1. Tropics.  Dioclea H. B. & K.

Uppermost stamens free throughout. Corolla red or yellowish-green; keel as long as or longer than the wings.—Species 20. Tropics.
Some of them yield poisons, medicaments, vegetables, fodder, and dyes, or serve as ornamental plants. (Stizolobium P. Br.).  Mucuna Adans.

201. Stipules free, stem-clasping. Corolla red, blue, or white; keel blunt.
Ovule 1. Fruit ovate, indehiscent. Gland-dotted plants. (See 153.)  Psoralea L.

Stipules adnate to the leaf-stalk. Corolla red or yellow; keel usually beaked. Ovules 2 or more.  202

202. Leaflets toothed. Calyx with a short tube and subequal segments.
Fruit dehiscing by two valves, usually terete. (See 129.)  Ononis L.

Leaflets entire. Calyx with a thread-shaped tube and unequal segments, four of which are connate. Corolla yellow. Ovules 2-3. Base of the style persistent. Fruit flat, separating in two joints or indehiscent.
Herbs. Flowers usually intermixed with feathery bristles.—Species
5. Tropical and South Africa.  Stylosanthes Swartz

203. (197.) Stem woody. Corolla white or red; wings free. Stamens diadelphous at the base, at first monadelphous at the middle. Ovary stalked.
Style hairy at the apex. Fruit flat.—Species 1 (R. Pseudacacia L.).
Naturalized in North Africa. Yields timber and medicaments and is used as an ornamental plant. The bark and the leaves are poisonous.  Robinia L.

Stem herbaceous. Corolla blue, yellow, or whitish. Ovary sessile.  204

204. Filaments united, excepting one, or all united into a sheath split above.
Wings free. Fruit oblong or ovate, flat or constricted between the seeds.—Species 2. North Africa. They yield medicaments (liquorice), dyes, and material for papermaking.  Glycyrrhiza L.

Filaments all united into a closed tube. Wings slightly adhering to the keel. Style glabrous. Fruit linear, subterete.—Species 1. North
Africa (Algeria). Used as an ornamental, medicinal, or fodder-plant.
“Goats rue.”  Galega L.

205. (147.) Leaves abruptly pinnate. [Especially tribe VICIEAE.]  206

Leaves imparipinnate, digitate, unifoliolate, simple, or wanting.  220

206. Calyx distinctly two-lipped, the upper lip entire or shortly 2-toothed, the lower one entire, 3-toothed, or 3-parted. Corolla yellow; standard suborbicular. Fruit jointed. Flowers in racemes.  207

Calyx equally or subequally toothed or divided, or entire.  210

207. Bracts very large, imbricate, hiding the flowers and fruits. Bracteoles none. Flowers very small. Filaments all united. Ovules 2. Herbs.
Stipules produced at the base into a spur-like appendage.—Species 9.
Central Africa.  Geissaspis Wight & Arn.

Bracts not hiding the flowers, usually small and deciduous. Bracteoles present.  208

208. Fruit enclosed by the enlarged calyx. Filaments all united. Ovules more than two.—Species 30. Tropical and South-east Africa. (Damapana
Adans., including Kotschya Endl.)  Smithia Ait.

Fruit much exceeding the calyx.  209

209. Ovary sessile. Uppermost stamen free. Keel obtuse. Fruit ring-shaped or spirally twisted, flat, glabrous except at the shortly spinous sutures, 2-valved. Herbs. Leaves with 2-4 pairs of leaflets. Stipules spurred at the base. Bracts not spurred.—Species 1. West
Africa.  Cyclocarpa Afz.

Ovary stalked. Fruit straight, curved, or spirally twisted; in the latter case covered with glandular hairs.—Species 60. Tropical and
South Africa. Some species (especially the ambatch, A. Elaphroxylon
Taub.) yield cork-wood, fibre, and medicaments. (Including Herminiera
Guill. & Perr.)  Aeschynomene L.

210. Style hairy, usually bearded lengthwise. Fruit more or less flattened,
1-celled, 2-valved. Seeds with an outgrowth near the hilum. Herbs.
Bracteoles rudimentary or wanting.  211

Style glabrous.  214

211. Staminal tube obliquely truncate at its mouth.  212