[1234] Nathorst (11) p. 19, Pl. v. figs. 1–8; Pl.
vi. figs. 1–3. The name Palaeozamia pecten was applied by Leckenby [Leckenby (64) A. p. 77, Pl. ix. fig. 47] both
to the fronds and an associated flower which is now recognised as a whorl of microsporophylls. I formerly employed the name Williamsonia
pecten for fronds and flowers, but in view of Nathorst’s work it is advisable to follow his example and to use separate names for male
and female flowers when there is no proof that they belong to one type; similarly the fronds may conveniently be spoken of as Ptilophyllum pecten.
[1245] Feistmantel (772) Pl. xli. fig. 4; (77) Pl.
i. fig. 6; Pl. ii. fig. 4.
[1246]Ibid. (762) p. 52, Pl. xii. figs. 5–7;
(775) Pl. i. figs. 4, 5; Pl. ii. fig. 6.
[1247] Feistmantel (773) p. 181, Pl. vii. figs. 1–4;
(771) Pl. ii. figs. 1–3.
[1248] My thanks are due to Mr Wieland for a photograph of
this species that is mentioned but not figured in his paper on the Mexican Flora, Wieland (13).
[1295] Nathorst retains the name Anomozamites minor for
the leaves, restricting Wielandiella to the plant as a whole
including strobili and stems which usually occur in organic union [Nathorst (13)].