Fossil plants, Vol. 1: [A text-book] for students of botany and geology

by A. C. Seward

[245] Seward (94²) p. 4.

[246] Kidston (83) Pl. XXXII. fig. 2. Specimens of this form may be seen in the British Museum collection.

[247] Cf. Matthew, G. F. (89). Hall called attention in 1852 to the prevalent habit of describing ‘algae’ from the older strata, without any evidence for a vegetable origin. (Hall [52] p. 18.)

[248] Credner (87) p. 431.

[249] Saporta (84) p. 45, Pl. VII.

[250] Solms-Laubach (91) p. 51.

[251] A monograph on the Diatomaceae has recently been written by Schütt for Engler and Prantl’s systematic work. See also Murray, G. (97) and Pfitzer (71).

[252] Darwin (90) p. 5.

[253] Weed (87).

[254] Wilson (87).