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

by A. C. Seward

[502] Zeiller (06) Pl. XLII.

[503] Kidston (07²).

[504] Renault (96) A. Pl. XXXVII. fig. 3.

[505] Renault (79) Pls. XII. XIII. p. 270; (96) A. p. 245.

[506] Scott, D. H. (04²).

[507] Scott (08) p 230, fig. 95.

[508] Kidston (07²).

[509] Arber and Thomas (08).

[510] Goldenberg (55); Kidston (97).

[511] Zeiller (88) A. Pl. XC. 1, p. 598.