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

by A. C. Seward

[182] Renault (69) p. 178, Pls. XII–XIV.

[183] Renault (96) A. p. 249.

[184] Kidston (86³).

[185] Goeppert (52) A.

[186] Kidston (01) p. 38.

[187] Kidston (84) Pl. V; (01) p. 37.

[188] Bower (08) p. 298, fig. 147.

[189] Solms-Laubach (91) A. p. 186.

[190] Penhallow (92) Pl. I. fig. 2, p. 8.

[191] Goeppert (52) p. 440.