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

by A. C. Seward

[715] Ibid. (88²).

[716] Williamson and Scott (94), p. 900.

[717] Weiss (84), Pl. XXI. fig. 4.

[718] Williamson (74), Pl. V. fig. 32.

[719] Williamson (88²), Pl. IX. fig. 20.

[720] E.g. Renault (82), Pl. XIX. fig. 1; (96), Pl. XXIX. figs. 1 and 4.

[721] Williamson (88²), Pl. VIII. figs. 1 and 4.

[722] Renault (93), Pl. XXIX. fig. 7.

[723] Solms-Laubach (91), p. 325.

[724] Weiss (84) p. 161. Solms-Laubach, loc. cit. p. 326.