Fossil plants, Vol. 2: A text-book for students of botany and geology

by A. C. Seward

[1502] For figures of this and other species, see Potonié (07).

[1503] For synonymy, see Zeiller (90) p. 87 and Potonié (07) p. 2.

[1504] Schuster (08) Pl. VIII. fig. 7.

[1505] Weiss, C. E. (70).

[1506] Schlotheim (20) A. p. 406.

[1507] Renault and Zeiller (88) A. Pl. XIX.

[1508] White (05²) p. 388.

[1509] Forbes (53) p. 43.

[1510] Baily (59) p. 75.

[1511] Schimper (69) A. p. 473.