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The flowering plants of Africa / An analytical key to the genera of African phanerograms

Chapter 2: PREFACE
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An analytical identification key to the genera of African flowering plants, arranged to help users determine generic names by visible floral and vegetative characters while remaining close to natural classification; adopts the genera and families as treated by Engler and Prantl and supplies approximate species counts to 1910, geographical distribution, uses, and major synonyms. The volume includes keys to families and genera, a glossary of botanical terms, statistical tables, a map, 150 botanical plates, a list of principal works consulted, an index, and noted typographical corrections, and is intended to assist both botanists and travellers with practical field determination.

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Title: The flowering plants of Africa

Author: Franz Thonner

Editor: A. B. Rendle

Illustrator: Joseph Fleischmann

Release date: September 26, 2022 [eBook #69049]
Most recently updated: October 19, 2024

Language: English

Original publication: United Kingdom: Dulau & C., LTD, 1915

Credits: Chuck Greif and the Online Distributed Proofreading Team at http://www.pgdp.net (This file was produced from images available at The Internet Archive)

*** START OF THE PROJECT GUTENBERG EBOOK THE FLOWERING PLANTS OF AFRICA ***

 

 

 

THE
FLOWERING PLANTS OF AFRICA

THE
FLOWERING PLANTS
OF AFRICA

AN ANALYTICAL KEY TO THE GENERA
OF AFRICAN PHANEROGAMS


BY
FR. THONNER


WITH 150 PLATES AND A MAP


DULAU & CO., LTD.
37 SOHO SQUARE, LONDON
1915

 

ALL RIGHTS RESERVED

PREFACE

THE flora of Africa being now comparatively well known, the author of the present work considered the time opportune to present to the public an analytical key for determining in an easy way the generic name of every phanerogamous plant growing wild, whether indigenous or naturalized, or cultivated upon a large scale within the geographical limits of Africa including the islands.

The names and limits of the genera and families adopted in this work are those accepted in ENGLER & PRANTL’S “Die natürlichen Pflanzenfamilien,” the most recent work containing the description of all genera of flowering plants, and its supplement “Genera Siphonogamarum” by DALLA TORRE & HARMS.

As the present work is intended for the use not only of botanists, but also of colonists and travellers in Africa, who take an interest in botany, I have used, wherever it was possible, as distinctive characters, those which are visible to the naked eye in a plant in flower, being careful, however, not to deviate too much from the natural system.

Besides the diagnostic characters of the genera, I have also indicated the approximative number of the species described to the end of the year 1910, their geographical distribution, their uses, and their more important synonyms.

As to the terms used in indicating the geographical distribution of African plants, “North Africa” (including North-west-and North-east Africa) means all northern extratropical Africa, “South Africa” (including South-west and South-east Africa) southern extratropical Africa, “tropical Africa” Africa within the tropics, including all islands, whereas the continent of Africa within the tropics including only the small islands in the proximity of the coast, is designated by “Central Africa.”

The present work was originally published in German under the title “Die Blütenpflanzen Africas” (Berlin, R. Friedländer & Sohn, 1908). A new edition being desirable, I have preferred the English language, and I am indebted to Dr. A. B. RENDLE, of the British Museum, for revising my translation.

The plates were drawn by the Vienna artist JOSEPH FLEISCHMANN from herbarium specimens kindly lent from the collections of the Hofmuseum at Vienna and the Jardin botanique de l’Etat at Brussels by their respective keepers Dr. A. ZAHLBRUCKNER and Dr. E. DE WILDEMAN. Drawings already published have been used for a few plates only; these are duly indicated.

FRANZ THONNER.

VIENNA (AUSTRIA), September 1913.

LIST OF PRINCIPAL WORKS CONSULTED

A. Engler & K. Prantl, Die natürlichen Pflanzenfamilien (Leipzig, 1889-1908).

C. G. De Dalla Torre & H. Harms, Genera Siphonogamarum (Leipzig, 1900-1907).

A. Engler, Syllabus der Pflanzenfamilien, 6. ed. (Berlin, 1909).

—Das Pflanzenreich (Leipzig, 1900-1910).

—Monographien afrikanischer Pflanzenfamilien und-gattungen (Leipzig, 1898-1904).

—Die Vegetation Afrikas (Berlin, 1908-1910).

G. Bentham & J. D. Hooker, Genera plantarum (London, 1862-1883).

J. D. Hooker & B. D. Jackson, Index Kewensis plantarum phanerogamarum (Oxford, 1895-1908).

A. De Candolle, Prodromus systematis naturalis regni vegetabilis (Paris, 1824-1873).

C. S. Kunth, Enumeratio plantarum (Stuttgart, 1833-1850).

G. Walpers, Repertorium botanices systematicae (Leipzig, 1842-1847).

—Annales botanices systematicae (Leipzig, 1848-1868).

A. & C. De Candolle, Monographiae phanerogamarum (Paris, 1878-1896).

H. Baillon, Histoire des plantes (Paris, 1867-1895).

Th. Durand & H. Schinz, Conspectus florae Africae (Bruxelles, 1895-1898).

 

R. Delile, Flore d’Egypte (Paris, 1810).

E. Boissier, Flora orientalis (Basel, 1867-1888).

P. Ascherson & G. Schweinfurth, Illustrations de la flore d’Egypte (Le Caire, 1887).

E. Sickenberger, Contributions à la flore d’Egypte (Le Caire, 1901).

E. Durand & G. Barratte, Florae Libycae prodromus (Genève, 1910).

J. A. Battandier & Trabut, Flore de l’Algérie (Alger, 1888-1910).

—Flore de l’Algérie et de la Tunisie (Alger, 1902).

W. Trelease, Botanical observations on the Azores (St. Louis, 1897).

R. T. Lowe, A manual flora of Madeira (London, 1868).

Ph. Barker-Webb & S. Berthelot, Phytographia Canariensis (Paris, 1836-1840).

J. Pitard & L. Proust, Les îles Canaries (Paris, 1908).

 

D. Oliver & W. T. Thiselton-Dyer, Flora of tropical Africa (London, 1868-1910).

J. Mildbread, Wissenschaftliche Ergebnisse der deutschen Central-Africa-Expedition; Botanik (Berlin, 1910).

A. Engler, Die Pflanzenwelt Ostafrikas (Berlin, 1895).

A. Richard, Tentamen florae Abyssinicae (Paris, 1847).

R. Pirotta, Flora della colonia Eritrea (Roma, 1903-1908).

J. A. Grant & D. Oliver, The botany of the Speke and Grant expedition. (London, 1872-1875).

W. Peters, Naturwissenschaftliche Reise nach Mozambik (Berlin, 1862-1864).

Th. Sim, Forest flora and forest resources of Portuguese East Africa (Aberdeen, 1909).

J. B. Balfour, Botany of Socotra (Edinburgh, 1888).

H. Forbes, The natural history of Socotra and Abdelkuri (Liverpool, 1903).

F. Vierhapper, Beiträge zur Kenntniss der Flora Südarabiens und der Inseln Socotra, Semha und Abdelkuri (Wien, 1907).

J. A. Schmidt, Beiträge zur Flora der kapverdischen Inseln (Heidelberg, 1852).

J. A. Guillemin, S. Perrotet, & A. Richard, Florae Senegambiae tentamen (Paris, 1830-1833).

J. Palisot Beauvois, Flore d’Oware et de Benin (Paris 1804).

W. J. Hooker, Niger flora (London, 1849).

H. Pobeguin, Essai sur la flore de la Guinée française (Paris, 1906).

Th. Durand & E. De Wildeman, Matériaux pour la flore du Congo (Bruxelles, 1897-1901).

E. De Wildeman & Th. Durand, Contributions a la flore du Congo (Bruxelles, 1900).

—— Reliquiae Dewevreanae (Bruxelles, 1901).

—— Illustrations de la flore du Congo (Bruxelles, 1898-1904).

—— Plantae Thonnerianae Congolenses (Bruxelles, 1900).

E. De Wildeman, Etudes sur la flore du Katanga (Bruxelles, 1902-1903).

—Etudes sur la flore du Bas-et du Moyen-Congo (Bruxelles, 1903-1910).

—Mission E. Laurent (Bruxelles, 1905-1907).

—Notice sur des plantes utiles ou interessantes de la flore du Congo (Bruxelles, 1903-1906).

—Plantae novae horti Thenensis (Bruxelles, 1904-1910).

—Companie du Kasai (Bruxelles, 1909).

Th. & H. Durand, Sylloge florae Congolanae (Bruxelles, 1909).

W. P. Hiern, Catalogue of the African plants collected by Welwitsch (London, 1896-1901).

O. Warburg, Die Kunene-Sambesi-Expedition (Berlin, 1903).

J. C. Mellis, St. Helena (London, 1875).

 

A. Grandidier & Drake Del Castillo, Histoire naturelle de Madagascar (Paris, 1886-1902).

P. Baron, Compendium des plants malgaches (Paris, 1901-1906).

J. Palacky, Catalogus plantarum Madagascariensium (Prag, 1906).

J. G. Baker, Flora of Mauritius and the Seychelles (London, 1877).

J. B. Balfour, Flora of the Island of Rodriguez (London, 1879).

J. De Cordemoy, Flore de l’île de la Réunion (Paris, 1895).

A. Voeltzkow, Die von Aldabra bis jetzt bekannte Flora und Fauna (Frankfurt, 1902).

 

W. Harvey, The genera of South-African plants, 2. ed. (Capetown, 1868).

W. Harvey. O. W. Sonder &. W. Thiselton-Dyer, Flora Capensis (London, 1859-1910).

W. Harvey, Thesaurus Capensis (Dublin, 1859-1863).

H. Bolus & A. H. Wolley-Dod, A list of the flowering plants of the Cape peninsula (Capetown, 1903).

Th. Sim, The forests and forest flora of the Colony of the Cape of Good Hope (Aberdeen, 1907).

J. M. Wood, Handbook to the flora of Natal (Durban, 1907).

—Natal plants (Durban, 1898-1910).

H. Schinz, Beiträge zur Kenntniss der afrikanischen Flora (Genève, 1892-1908).

—Die Pflanzenwelt Deutsch-Südwestafrikas. (Genève, 1896-1900).

A. Zahlbruckner, Plantae Pentherianae (Wien, 1900-1905).

Challenger Report on the scientific results of the voyage of H.M.S. “Challenger” (London, 1885).

H. Schenk, Vergleichende Darstellung der Pflanzengeographie der subantarktischen Inseln (Jena, 1905).

 

Linnean Society, Journal. Botany. (London, 1857-1910).

Kew Gardens, Bulletin of miscellaneous information. (London, 1892-1910).

W. Curtis, The Botanical Magazine (London, 1793-1910).

W. J. & J. D. Hooker, Icones plantarum (London, 1837-1910).

B. Seemann & J. Britten, The Journal of Botany (London, 1853-1910).

A. Engler, Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie (Leipzig, 1881-1910).

—Notizblatt des königl. botanischen Gartens und Museums zu Berlin (Leipzig, 1897-1910).

K. Schumann & F. Fedde, Just’s botanischer Jahresbericht (Leipzig, 1873-1910).

F. Fedde, Repertorium novarum specierum regni vegetabilis (Berlin, 1906-1910).

Botanisches Centralblatt (Leiden, 1880-1910).

Société Botanique De France, Bulletin (Paris, 1854-1910).

Société Linnéenne De Paris, Bulletin (Paris, 1889-1899).

Muséum D’Histoire Naturelle, Bulletin (Paris, 1895-1910).

G. Beauverd, Bulletin de l’herbier Boissier, 2me série (Genéve, 1901-1908).

R. Pirotta, Annuario del istituto botanico di Roma (Milano, 1885-1908).

—Annali di Botanica (Roma, 1904-1910).

Sociedade Broteriana, Boletim (Coimbra, 1883-1910).

 

J. Lindley & Th. Moore, The treasury of botany (London, 1884).

J. C. Willis, A manual and dictionary of the flowering plants and ferns, 3. ed. (Cambridge, 1908).

J. Wiesner, Die Rohstoffe des Pflanzenreichs, 2. Aufl. (Leipzig, 1900).

G. Dragendorff, Die Heilpflanzen (Stuttgart, 1898).

L. Lewin, Lehrbuch der Toxikologie, 2. Aufl. (Wien, 1897).

F. Macmillan, A handbook of tropical gardening and planting (Colombo, 1910).

M. Woodrow, Gardening in the tropics (Paisley, 1910).

A. Voss, Vilmorin’s Blumengärtnerei (Berlin, 1896).

A. Moloney, Sketch of the forestry of West Africa (London, 1887).

J. H. Holland, The useful plants of Nigeria (London, 1908).

R. Sadebeck, Die Kulturgewächse der deutschen Kolonien (Jena, 1899).

J. L. De lanessan, Les plantes utiles des colonies françaises (Paris, 1886).

G. Niederlein, Ressources végétales des colonies françaises (Paris, 1902).

A. Sebire, Les plantes utiles du Senegal (Paris, 1899).

A. Chevalier, Les végétaux utiles de l’Afrique tropicale française (Paris, 1905-1910).

E. Heckel, Les plantes utiles de Madagascar (Paris, 1910).

L. Cuoco, Fauna e flora medica ed industriale della colonia Eritrea (Napoli, 1897).

C. De Ficalho, Plantas uteis da Africa portugueza (Lisboa, 1884).

 

B. D. Jackson, A glossary of botanic terms, 2. ed. (London, 1905).

TABLE OF CONTENTS

KEY TO THE FAMILIES
 PAGE
Gymnospermae1
Monocotyledoneae2
Apetalae6
Choripetalae18
Sympetalae49
KEY TO THE GENERA
I. CYCADALES.
1. Cycadaceae69
II. CONIFERAE.
2. Taxaceae70
3. Pinaceae70
III. GNETALES.
4. Gnetaceae71
IV. MONOCOTYLEDONEAE.
Pandanales.
5. Typhaceae72
6. Pandanaceae73
7. Sparganiaceae73
Helobiae.
8. Potamogetonaceae73
9. Naiadaceae75
10. Aponogetonaceae75
11. Scheuchzeriaceae75
12. Alismataceae75
13. Butomaceae77
14. Hydrocharitaceae77
Triuridales.
15. Triuridaceae78
Glumiflorae.
16. Gramineae79
17. Cyperaceae106
Principes.
18. Palmae110
Spathiflorae.
19. Araceae114
20. Lemnaceae119
Farinosae.
21. Flagellariaceae119
22. Restionaceae119
23. Mayacaceae120
24. Xyridaceae121
25. Eriocaulaceae121
26. Rapateaceae121
27. Bromeliaceae122
28. Commelinaceae122
29. Pontederiaceae123
30. Cyanastraceae124
Liliiflorae.
31. Juncaceae124
32. Liliaceae125
33. Haemodoraceae134
34. Amaryllidaceae135
35. Velloziaceae139
36. Taccaceae139
37. Dioscoreaceae140
38. Iridaceae140
Scitamineae.
39. Musaceae145
40. Zingiberaceae146
41. Cannaceae147
42. Marantaceae148
Microspermae.
43. Burmanniaceae149
44. Orchidaceae150
V. DICOTYLEDONEAE.
ARCHICHLAMYDEAE.
Verticillatae.
45. Casuarinaceae160
Piperales.
46. Piperaceae161
Salicales.
47. Salicaceae161
Myricales.
48. Myricaceae162
Juglandales.
49. Juglandaceae162
Fagales.
50. Betulaceae162
51. Fagaceae163
Urticales.
52. Ulmaceae163
53. Moraceae164
54. Urticaceae168
Proteales.
55. Proteaceae170
Santalales.
56. Santalaceae172
57. Opiliaceae173
58. Grubbiaceae173
59. Olacaceae173
60. Octoknemataceae175
61. Loranthaceae175
62. Balanophoraceae176
Aristolochiales.
63. Aristolochiaceae176
64. Rafflesiaceae177
65. Hydnoraceae177
Polygonales.
66. Polygonaceae177
Centrospermae.
67. Chenopodiaceae179
68. Amarantaceae182
69. Nyctaginaceae186
70. Cynocrambaceae187
71. Phytolaccaceae187
72. Aizoaceae188
73. Portulacaceae190
74. Basellaceae191
75. Caryophyllaceae191
Ranales.
76. Nymphaeaceae197
77. Ceratophyllaceae197
78. Ranunculaceae197
79. Berberidaceae199
80. Memspermaceae199
81. Anonaceae203
82. Myristicaceae206
83. Monimiaceae208
84. Lauraceae209
85. Hernandiaceae211
Rhoeadales.
86. Papaveraceae211
87. Capparidaceae213
88. Cruciferae216
89. Resedaceae228
90. Moringaceae229
Sarraceniales.
91. Nepenthaceae229
92. Droseraceae230
Rosales.
93. Podostemonaceae230
94. Hydrostachyaceae231
95. Crassulaceae232
96. Saxifragaceae233
97. Pittosporaceae235
98. Cunoniaceae235
99. Myrothamnaceae236
100. Bruniaceae236
101. Hamamelidaceae238
102. Platanaceae238
103. Rosaceae239
104. Connaraceae243
105. Leguminosae245
Pandales.
106. Pandaceae289
Geraniales.
107. Geraniaceae289
108. Oxalidaceae290
109. Tropaeolaceae291
110. Linaceae291
111. Humiriaceae292
112. Erythroxylaceae292
113. Zygophyllaceae293
114. Cneoraceae295
115. Rutaceae295
116. Simarubaceae299
117. Burseraceae301
118. Meliaceae302
119. Malpighiaceae306
120. Polygalaceae308
121. Dichapetalaceae309
122. Euphorbiaceae309
123. Callitrichaceae324
Sapindales.
124. Buxaceae324
125. Empetraceae325
126. Coriariaceae325
127. Anacardiaceae325
128. Aquifoliaceae329
129. Celastraceae329
130. Hippocrateaceae332
131. Salvadoraceae332
132. Icacinaceae333
133. Aceraceae335
134. Sapindaceae335
135. Melianthaceae342
136. Balsaminaceae343
Rhamnales.
137. Rhamnaceae343
138. Vitaceae345
Malvales.
139. Elaeocarpaceae347
140. Chlaenaceae347
141. Tiliaceae348
142. Malvaceae350
143. Bombacaceae353
144. Sterculiaceae354
145. Scytopetalaceae357
Parietales.
146. Dilleniaceae358
147. Ochnaceae359
148. Theaceae360
149. Guttiferae360
150. Dipterocarpaceae363
151. Elatinaceae363
152. Frankeniaceae363
153. Tamaricaceae364
154. Cistaceae365
155. Bixaceae365
156. Cochlospermaceae366
157. Winteranaceae366
158. Violaceae366
159. Flacourtiaceae367
160. Turneraceae373
161. Passifloraceae374
162. Achariaceae376
163. Caricaceae377
164. Loasaceae377
165. Begoniaceae377
166. Ancistrocladaceae378
Opuntiales.
167. Cactaceae378
Myrtiflorae.
168. Geissolomataceae379
169. Penaeaceae379
170. Oliniaceae380
171. Thymelaeaceae380
172. Elaeagnaceae383
173. Lythraceae383
174. Sonneratiaceae385
175. Punicaceae386
176. Lecythidaceae386
177. Rhizophoraceae387
178. Alangiaceae389
179. Combretaceae389
180. Myrtaceae391
181. Melastomataceae392
182. Oenotheraceae397
183. Halorrhagaceae399
184. Cynomoriaceae400
Umbelliflorae.
185. Araliaceae400
186. Umbelliferae401
187. Cornaceae414
METACHLAMYDEAE.
Ericales.
188. Clethraceae414
189. Ericaceae415
Primulales.
190. Myrsinaceae417
191. Primulaceae419
192. Plumbaginaceae420
Ebenales.
193. Sapotaceae421
194. Hoplestigmataceae424
195. Ebenaceae424
196. Styracaceae425
Contortae.
197. Oleaceae425
198. Loganiaceae427
199. Gentianaceae429
200. Apocynaceae432
201. Asclepiadaceae441
Tubiflorae.
202. Convolvulaceae457
203. Hydrophyllaceae462
204. Borraginaceae463
205. Verbenaceae467
206. Labiatae470
207. Solanaceae481
208. Scrophulariaceae483
209. Bignoniaceae495
210. Pedaliaceae498
211. Martyniaceae500
212. Orobanchaceae500
213. Gesneraceae500
214. Lentibulariaceae501
215. Globulariaceae502
216. Acanthaceae502
217. Myoporaceae515
Plantaginales.
218. Plantaginaceae515
Rubiales.
219. Rubiaceae516
220. Caprifoliaceae533
221. Valerianaceae534
222. Dipsacaceae534
Campanulatae.
223. Cucurbitaceae535
224. Campanulaceae541
225. Goodeniaceae544
226. Compositae544
Statistical Table585
Glossary of Botanical Terms591
Abbreviations of Authors’ Names600
List of Popular Names602
Additions and Corrections607
Index613