Fossil plants, Vol. 1: [A text-book] for students of botany and geology

by A. C. Seward

[875] Williamson (91), p. 12.

[876] Ibid. (74).

[877] Felix (86), Pl. Vi. fig. 2.

[878] For figures vide Renault (82), Pl. XVI. fig. 1, (76²) Pls. VII. and IX.

[879] Williamson (71²).

[880] Weiss (84), p. 200.

[881] Binney (71).

[882] Williamson (91²).

[883] Zeiller (93).

[884] Williamson (92).