240 Universiiij of California PnbNcations. [botany 



Family ENCCELTACE^. 



Desmotrichum undulatum (-I.Agardh) Keinke. 



On Zosieya imiyiiKi. in ;i ((iiiet cove. Near Seldovia, Cook 

 Inlet, Alaska, Sdiiiidos (1!)()1, ]>. 4]i), nnder Honxi'ostronto 

 Kiuhdafioii.) 



This seems more like a narrow Punctaria, since according to 

 both the description and tignre of Saunders the plurilocular 

 sporangia hardly project beyond the surface of the frond. 



Punctaria latifolia (Treville. 



In quiet waters, tioating or attached to other alga^ P()])of 

 Island, Sitka, and Annette Island, Alaska, SdioHlers (1901, 

 p. 420, nndev HonKfosfrotiia httifolliou) ; Penn's Cove, near Coupe- 

 ville, VVhidbey Island. Wash., X.L.O., No. 190! 



Homo'ostronHt loJxiium Saunders, from Sitka and Prince 

 William Sound, Alaska, seems from description and figure to 

 be a form of this species or the next with much lobed margins. 

 It reminds us of PhyeoJapatluim criapatum Kuetzing (1856, p. 10, 

 pi. 49, f. I). 



No. 190, N.L.Ci., may be a distinct form, since it reaches a 

 diameter of over a meter and seems to increase, in its floating state, 

 indefinitely, in a way similar to that of Ulv(t Luctiica var. 

 lafissimri. 



Punctaria plantaginea (Roth) (Ireville. 



On ex])osed rocks. Port Clarence, Alaska, KjclhiHiii (1889, 

 p. .■")()); Yakutat Bay. Alaska, SmnuUrs (1901, p. 420). 



Coilodesme bulligera Stroemfelt. 



On rocks and stones, in quiet coves, in the lower litoral zone. 

 Amaknak Island, Bay of Unalaska, Alaska, H^A.*S\ (iikJ A .A .L., 

 Nos. 3285! , 4081 ! , and in Collins, Holden and Setchell. P. B.-A.. 

 No. 928b!; Shumagin Islands, Kukak Bay, Prince William 

 Sound, Yakutat Bay, and Wrangell, Alaska. SdinuJcrs (1901. 

 p. 422) , and in Collins, Holden and Setchell. P. B.-A.. No. 92;5a! ; 

 west coast of Whidbey Island, Wash., X.L.d., No. 201! 



It is very interesting to note the common occurrence of this 

 species in the Northern Pacific Ocean, at least so far as the 

 North American Coast is concerned, since before the collections 



