[525] Lindley and Hutton (31) Pl. CLXXXVI.
[526] Bunbury (51) p. 189.
[527] Zigno (56) Pl. III. fig. 3, p. 46.
[528] Heer (77) p. 43, Pl. IV.
[529] Schimper (69) p. 284. Vide also Nathorst (80) p. 54.
[530] Andrae (53) Pl. VI. figs. 1–5.
[531] Solms-Laubach (91) p. 180.
[532] cf. p. 283.
[533] There is a similar specimen in the Oxford Museum.
[534] Since this was written I have found a specimen of Equisetites lateralis in the Woodwardian Museum, in which a diaphragm like that in fig. 64, C, occurs in the centre of a flattened leaf-sheath similar to that of fig. 64, B.