Note 1234 — Chapter XXXVII

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.