1917] Gardner: New Pacific Coast Marine Algae I 399 



long, slender, straij^lit, trichogyne, deep-seated, on a two-celled branch ; 

 goninioblastic filaments arise directly from the fertilized carpogonium 

 and intermingle with the cortical filaments, repeatedly brandling, at 

 first horizontall}^ and later bending outward, producing numerous 

 carpospores just beneath the surface of the frond ; cystocarp not 

 definitely delimited ; tetrasporangia unknown. 



Cumagloia Andersonii (Farlow) Setchell et Gardner 

 Plate 31, figs. 1-4, and Plate 32, figs. 1-4 



Solitaria ant paucae e radice communi orientes atropurpnrea, 

 dioica ; 15-20 cm. alta, 2-3 mm. diam. ; frondibus solidis aut aetate 

 provecta alequando saccatis. 



Plants solitary or in small clusters arising from a common liold- 

 fast, solid or in age occasionally saccate, 15-20 cm. high, 2-3 mm. 

 diam. ; color dark purplish red ; dioecious. 



Growing on rocks in the upper littoral belt, even above high-tide 

 limit when growing on rock ledges covered by surf. It has been col- 

 lected at the following localities along the Pacific coast of the United 

 States: La JoUa, Mrs. Mary S. Snyder and Miss Minnie Reed; San 

 Pedro, Mrs. H. D. Johnston; Carmel Bay, W. A. Setchell and N. L. 

 Gardner; Pacific Grove, D. A. Saunders, B. M, Davis and M. A. 

 Howe; Moss Beach, San Mateo County, W. A. Setchell and N. L. 

 Gardner; Lands End, San Francisco, R. E. Gibbs and W. A. Setchell, 

 all of the above localities being on the coast of California; Seal Rocks, 

 Oregon, A. R. Sweetser; Chehalis Bay, Washington, Ralph Emer- 

 son. Specimens from all the above mentioned localities are in the 

 herbarium of the University of California. 



Nenialion Andersonii Farlow, Proc. Amer. Acad., vol. XII, p. 240. 



Cumagloia is quite similar to Nemalion in vegetative characters 

 but differs in the method of origin and in tlie structure of the cj^sto- 

 earp. It was discovered by Dr. C. L. Anderson at Santa Cruz, Cali- 

 fornia. Anderson sent material to Professor W. G. Farlow of Harvard 

 University, for study and determination. Tlie material not producing 

 CA'stoearps, Farlow was unable at the time to place the plant with 

 certainty in any known genus, but on account of its structure he 

 felt that it was closeh* allied to, if not identical with, the genus 

 Nemalion, but uiilikf any described form of that genus. He named 

 it for the discovered and published a diagnosis in the Proceedings 

 of tlie American Acadenn' of Arts and Sciences, in 1877, The plant 

 has been known in tlie literature ever since under that name. Some 

 time ago, at the suggestion of Professor W. A. Setchell, I began the 

 collection and study of material at different seasons and different 

 localities along the California coast with the hope of being able to 

 obtain material in condition to show the young stages in the develop- 



