BoT.— Vol. II.] NOTT— CALIFORNIA N NITOPHYLLA. 1 9 



Hymenena Jatissima. A similar form was received some- 

 what later by Agardh from Golden Gate, San Francisco 

 Bay, collected by Berggren. Further than this, corre- 

 sponding forms were issued in the Alg. Amer.-Bor. Exsicc. 

 (1878, No. 68), collected by Dr. C. L. Anderson, at 

 Santa Cruz. 



Again, according to Agardh, there is still another form, 

 viz., N. macroglossttm, which is referred to Californian 

 shores. This plant was collected originally by Berggren 

 also at the Golden Gate, and at first was included by Agardh 

 in N. latissimiim . Specimens collected by the writer (1897, 

 Fasc. VII, No. 335) at the type locality are said by Agardh 

 to be identical with the plant first referred by him to N. 

 latissinmm and now included under N. macroglosstim. 



The writer has now examined in the field and herbarium a 

 wide range of plants comprehended under these two species 

 of Agardh. Specimens, collected at numerous localities 

 and at various times in the year along the coast from San 

 Pedro northward to Puget Sound entrance, provide a fair 

 amount of material as a basis for estimating Agardh's spe- 

 cies. An especially abundant series of forms was collected 

 by the writer between Januar}^ and May at Golden Gate, 

 San Francisco Bay, the type locality for Agardh's N. mac- 

 roglossum. This collection included numerous specimens 

 of both the species above referred ^to as established by 

 Agardh. 



A discriminating examination of Agardh's descriptions 

 shows, as far as the writer can determine, that N. latissimum 

 differs from N. macroglossum in being of a paler color, 

 possibly less luxuriant in habit, with by no means such a 

 well developed system of venation. The nerves and veins 

 anastomose less freely, project above the surface of the 

 frond less prominently, or not at all, as is more commonly 

 the case, and soon evanesce into the frond. The areoles 

 are larger and more conspicuous by reason of the broad, 

 flat aspect of the nerves and veins. The sori are fewer in 

 number and are most numerous about the borders of the 

 areoles. 



