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

by A. C. Seward

[852] Schenk (88) A. p. 30.

[853] Dr Scott tells me that an examination of Dr Zeiller’s specimens led him to agree with the latter’s description of the annulus of Oligocarpia. (A. C. S.)

[854] Fontaine (83) Pls. XV.-XIX.

[855] Bunbury (47) Pl. II. fig. 1; Seward (94²) A. p. 189.

[856] Krasser (09) p. 16.

[857] Leuthardt (04) p. 40, Pl. XVIII. fig. 3.

[858] Schenk (67) A. p. 86, Pl. XXII. figs. 7, 8.

[859] Zigno (56) A. Pl. X.

[860] Raciborski (94) A. p. 43, Pl. XIII. figs. 15–20.

[861] Seward (95) A. p. 225.