208 Universiiii of California Piihlications. [botany 



Monostroma Grevillei (Tlmi-et) Wittrock. 



On stones, just above and just below extreme low water mark. 

 Iliuliuk, Unalaska, Alaska, ir.A.S. and A.A.L., No. 4016a! 



Mr. Collins in his report on the collections says ^^ Monostroma 

 Grevillei, probably". The species is also taken in a sense some- 

 what narrower than that of Rosen vinge (1893, p. 948, ef seq.), 

 at least not including' M. arcticuin nor M. Valdii (cf. also Roscn- 

 vinge, 1894, pp. 149-155, and 1898. ]>. 117.) 



Monostroma arcticum Wittrock. 



On stones in shallow pools of the middle litoral zone. West 

 shore of Amaknak Island, Bay of Unalaska, Alaska, ir.A.«S'. (ind 

 A.A.L.,^0. 3260! , and in Collins, Holden and Setchell, P. B.-A., 

 No. 910! ; Karluk, Kadiak Island, Alaska, ir.A./S., No. 5071! 



Mr. Collins takes M. arcticum in a sense broad enough to 

 include M. angicavum Kjellman and 31. saccodeum Kjellman, but 

 prefers to keep M. arcticum, itself, as a distinct species, and not 

 unite it with M. Grevillei Wittrock as Rosenvinge has done (cf. 

 Rosenvinge, 1893, p. 946, and 1894, p. 152). 



Monstroma GrcEnlandicum J. Agardh. 



On small boulders, middle litoral zone. West shore of 

 Amaknak Island, Bay of Unalaska, Alaska, TF.^4.(S^. and A. A. L., 

 Nos. 3278!, 3299! ; Kukak Bay, Alaska, Saunders (1901, p. 410). 



Monostroma Vahlii J. Agardh. 



Kukak Bay, Alaska, Saunders (1901, ]). 410). 



Monostroma fuscum (P. & R.) Wittrock. 



On stones in the middle litoral zone. North Pacific Ocean, 

 Posfels and Ruprecld (1840, p. 21, under Ulva fusca) \ Kukak 

 Bay and Virgin Bay, Alaska, Saunders (1901, p. 409); Orca. ' 

 Alaska, ir..4.*S'. atid A.A.L., No. 5159!; Muir Inlet of Glacier 

 Bay and Sitka, Alaska, Saunders, (1901, p. 409); floating in 

 slightly brackish water. Crocket's Lake, Whidbey Island, Wash., 

 N.L.G., No. 531! 



Mr. Collins takes this species in the later and broader sense 

 to include also M. splendens (Ruprecht) Wittrock and .1/. Bhjttii 

 (Areschoug) Wittrock. All the above specimens which have 



