T. Holm — Studies in the Cyperacece. 143 



have seen that in C. macrochceta the terminal spike may 

 sometimes be androgynous, gynascandrous or even purely 

 pistillate, but such structures are merely exceptions: in 

 C. Jcoraginensis the terminal spike is often androgynous. 

 Very characteristic are the mucronate to aristate squa- 

 mae, and the membranaceous, more or less elliptic 

 perigynia with a short beak, though tubular in C. gan- 

 snensis; the perigynium varies from glabrous to densely 

 spinulose (C. scita, etc.) The species are confined to the 

 northwestern corner of this continent, and to the Asiatic 

 coast from St. Lawrence Bay to Japan. 



Nesophilce. 



Car ex nesophila nob. (figs. 10-12) is a species of such 

 peculiar habit and structure, that we feel unable to 

 place it in any other way than in a section of its own. 

 The culm is phyllopodic; the bracts are not sheathing; 

 the pistillate spikes are most often pedunculate, and 

 sometimes even drooping; the squamae are acute, 

 amplectent, and the midrib is thick, consisting of three 

 veins; the perigynium varies from oval to elliptical 

 oblong; it is distinctly several-nerved, and the short 

 beak is mostly entire ; the number of stigmata is three, 

 or sometimes two. 8 In other words the habit reminds of 

 that of C. salina Wahlenb. or C. hyperborea Drej., while 

 the perigynium corresponds well with that of C. macro- 

 chceta. The species was found abundant on uplands (St. 

 Paul Island and Popoff Island, Bering Sea) associated 

 with Sieversia, Potent ilia and Artemisia, but not with 

 any other species of Carex; it seems to be a type charac- 

 teristic of these islands. 



It is thus somewhat related to C. macrochceta, but can- 

 not be regarded as a variety of this, since it is phyllopo- 

 dic; moreover as stated above, the structure of the 

 squama is different. When C. macrochceta ascends the 

 mountains it does resemble C. nesophila to some extent 

 by the coarser structure of culm, leaves and spikes. 

 Such specimens we have received from Dr. Walter H. 

 Evans, who collected them "on mountain top, 1,200 ft. 

 (Kodiak, Alaska) " ; but in these specimens the culms are 



* This Journal, vol. 17, p. 315, 1904. 



