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

by A. C. Seward

[412] Williamson (93) Pl. VI. fig. 26, A.

[413] Kidston (01) p. 62.

[414] Renault and Zeiller (88) A. Pl. LXI. fig. 4.

[415] Hooker (48²).

[416] Binney (71).

[417] Williamson (93) p. 26.

[418] Maslen (99).

[419] Lindley and Hutton (37) A. Pl. 163.

[420] For a detailed account of this type, see Maslen (99).

[421] Williamson (93) p. 28.