2l8 CALIFORNIA ACADEMY OF SCIENCES. [Proc. 3D Ser. 



Habitat. — On rocks in the sublitoral zone. Also found 

 floating. June, July, August. 



Distribution. — From Alaska southward to Washington 

 (6o°-48° 10' N. lat.). 



Localities. — Orca, Alaska (W. A. Setchell and A. A. 

 Lawson, No. 5165!, de A. Saunders, No. 259a!); Unga, 

 Alaska (W. A. Setchell and A. A. Lawson, No. 5047!); 

 Amaknak Island, Alaska (W. A. Setchell, No. 3268!); 

 Coupeville, Washington (N. L, Gardner, No. 47! No. 280! 

 No. 199/'!). 



ID. Porphyra miniata (Lyngb.) Ag. 



Porphyra mittiata (Lvngb.) Agardh, C, Syst. Algarum, 1824, p. 191. 

 Agardh, J., Till Alg. Syst., VI, 1S82, p. 59. 



Ulva miniata Lyngbye, Hydrophyt. Dan., 1819, p. 29, Tab. 6, D. 



Diplodenna niiniatuni Kjellm., Alg^e of the Arctic Sea, 1SS3, p. 189. 



Wildeviania imttiata P^oslie, Cont. to Knowledge of Marine Algie of Nor- 

 way, II, 1891, p. 14 (in part); de Toni, Sylloge Algarum, Vol. IV, 1897, 

 P- 23. 



II. Porphyra miniata f. cuneiformis Setchell & Hiis. 



Plate I, Fig. 14. 



Porphyra miniata f. cuneiformis Setchell & Hus. Hus, Zoe, Vol. V, 

 1900, p. 68. 



Fronds membranous, 15-50 cm. long, 4-15 cm. broad, lanceolate with 

 undulate, often crenulate, margins; color red-purple; base strongly cuneate, 

 attached by a disc; fronds distromatic, often monostromatic near edge in 

 vegetative part, 30-75// thick; cells square to twice as long as broad; surface 

 jelly 10-12. 5/i thick; fronds monoecious, antheridia and sporocarps inter- 

 mixed in a marginal zone, gradually spreading over the whole frond, each 

 sporocarp containing 4 carpospores, each antheridium consisting of 8 

 antherozoids. 



Nearly two hundred specimens of this species, collected 

 at different times on the Pacific Coast, agreed essentially in 

 all respects among themselves as well as with specimens of 

 Porphyra miniata from the Atlantic coast; among others 

 with those distributed in the Phyc. Bor.-Amer, by Mr. 

 Isaac Holden (No. 377). Agardh's notes on Ulva furfurea 

 (P. miniata) are too meager to give a definite clue in the 

 determination of the species, especially since the number 



