[322] Solms-Laubach (96) p. 18, Pl. X. figs. 7–11.
[323] They are regarded as identical by Fischer (04).
[324] Binney (72) Pl. XIII. fig. 1.
[325] Seward (99).
[326] As Miss Stokey (09) points out the production of parenchyma internal to the cambium of L. fuliginosum is a feature shared by Isoetes. See also Scott and Hill (00), p. 424.
[327] Williamson (81) A. Pl. LII. p. 288. (Will. Coll. No. 379.)
[328] Binney (72).
[329] Cash and Lomax (90).
[330] Kidston (93) p. 547.
[331] Weiss, F. E. (03) p. 218.