li.'is University of California Publications in Botany [Vol.8 



characteristic than the European T. Atomaria (Good, et Wood.) J. 

 A.gardh, as to concentric lines of sori while, in habit, it seems to differ 

 decidedly from T. australasica, (Kuetz.) J. Agardh, if we may rely on 

 Kuetzing's figure (1859, pi. 48, fig. 2, quoted by J. G. Agardh with 

 a query). 



62. Chlanidophora J. Ag. 



Fronds multifid decompound, terminal segments plane, flabellately 

 dichotomous, subcostate below, lateral laciniae acuminate often ending 

 in a terminal cell ; external cells rectangular in surface view regularly 

 placed, those of each surface (in transverse section) adherent in turn 

 and corresponding in position, forming a distromatic frond (there 

 being no internal cells) ; fertile cells superficial, sparse, obovate 

 globose ; antheridia situated on the same individuals, forming oblong- 

 linear superficial sori, parallel to the length of the fronds, of a double 

 series of cells, finally quaternate. 



J. G. Agardh, Anal. Alg. Cont. I, 1894, p. 16 {Chiamdote in Key. 

 ioc. cit., p. 6). Chianidote De-Toni, Syll. Alg., vol. 3, 1895, p. 238. 



We have paraphrased the generic description of J. G. Agardh, but 

 give below under our species the characters of our plant, which may 

 possibly be of a distinct genus. We have no specimens of Chlanido- 

 phora microphytla (Harv.) J. Agardh for examination and, conse- 

 quently, must rely on the descriptions and on Harvey's (Ner. Austr., 

 vol. 4, 1862, pi. 195) and Kuetzing's (Tab. Phyc, vol. 9, 1859, pi. 69, 

 fig. Ill, ar-d) figures. In structure, the Australian plant is very close 

 to ours, yet ours seems to be more an aggregation of somewhat loosely 

 cohering filaments, while the type of the genus seems possibly more 

 tightly cohering and parenchymatous. We have altogether too imper- 

 fect a knowledge of the reproductive bodies in the case of either 

 species for a close comparison. Harvey 's plant was sterile. Kuetzing 's 

 plant was probably sterile. The description and figures of J. G. 

 Agardh are confusing. 



Chlanidophora abyssicola S. and G. 



Plate 5.0, figs. 1-7 

 Fronds 2-3 cm. high, composed at maturity of numerous broadly 

 flabellate segments; false stipe slender, in part polystromatic, com- 

 posed of the original narrow blade covered on both sides by numerous, 

 slender, closely appressed, multicellular hairs spreading out at the 



