BoT.— Vol. II.] NOTT—CALIFORNIAN NITOPHYLLA. 27 



No fruiting specimens of N. uncinatum, so far as can be 

 ascertained, have been reported from Californian shores. 

 The plant seems to be an exclusively southern form on this 

 coast, having been collected only at San Diego and San 

 Pedro, in southern California. From these two locahties 

 numerous and abundant collections have been taken, none 

 of which, however, have revealed fruiting specimens. There 

 is a strong probability that the plant propagates itself largely, 

 if not entirely, by vegetative means. It occurs commonly 

 on PhyUosfadix, in quiet water, conditions of substratum 

 which would favor the active development of the prostrate 

 frond. Its local abundance is shown by its occurrence in 

 such quantities as sometimes to clog the nets of fishermen. 



The description of the sori, as given in the synopsis of 

 the species, is taken from Agardh (1852, p. 654, 1876, p. 

 465, 1898, p. 65). The account of the cystocarp is based 

 upon an examination of the specimen issued in the Phyko- 

 theca Universalis (see note under synopsis of species). 

 There seems to be little doubt that the species of this coast 

 is identical with the European plant. 



Habitat. — In quiet water, on other alg£e, and on 

 Phyllos-padix . 



Distribution. — N. uncinatum is a cosmopolitan species, 

 limited in its local distribution, having been found at but 

 two points on the coast. 



Localities. — San Diego! (Herb., F. S. Collins); San 

 Pedro! (Mrs. E. A. Lawrence; A. J. McClatchie ; Mrs. 

 S. C. Purdy; W. A. Setchell). 



Nitophyllum multilobum J. Ag. 



Epicrisis Floridearum, Contin. Spec. Gen. et Ord. Alg., 1876, p. 698. 



Nitophyllum imdtilobtiin Agardh, J. G., Epicrisis Floridearum, Contin. 

 Spec. Gen. et Ord. Alg., 1876, p. 698. Farlow, W. G., Proc. Amer. 

 Acad. Arts and Sci., Vol. XII, 1877, p. 238; Anderson, C. L., Zoe, 

 Vol. II, 1891, p. 224. Collins, F. S., Holden, I., and Setchell, W. 

 A., Phyc. Bor.-Amer., Ease. VII, No. 336, 1897. Agardh, J. G., Con- 

 tin. Spec. Gen. et Ord. Alg., Vol. Ill, Pt. 3, 1S98, p. 45. 



