270 T. Holm — Studies in the CyjperacecB. 



triangular, scabrous; leaves shorter than the culm, narrow and 

 flat, scabrous along the margins and the lower surface ; spikes 

 3 to 4, contiguous : one terminal staminate, 2 or 3 lateral pis- 

 tillate ; staminate spike peduncled, about 2 0m in length, the 

 scales (fig. B) obovate-oblong, obtuse, dark brown with hyaline 

 margins, the midrib pale, not excurrent ; pistillate spikes erect, 

 very dark, short, only 1 to 2 fc,n in length, densely flowered, the 

 upper sessile or nearly so, the others peduncled; bracts not 

 sheathing, very short and filiform ; scale of pistillate spike (fig. 



C) obovate and acutish, black with very narrow hyaline 

 margins, midrib not excurrent, barely visible ; utriculus (fig. 



D) glabrous, a little longer than the scale, thin in texture, 

 round obovoid with a minute entire beak, purplish above, pale 

 green below, nerves barely visible ; caryopsis obovate, flat ; 

 stigmas, 2. 



Common in drier places on bay, Kussiloff. 



Related to C. ccespitosa Good., but is at once distinguished 

 from this by its stoioniferons habit and darker colored spikes. 

 C. ccespitosa grows always in dense tufts and the culms are at 

 the base surrounded by purplish, bladeless sheaths, besides 

 that the utricle is pale green. 



C. cvyptocarpa C. A. Mey. 



Abundant near villages, Sitka; on sands with Elymus, 

 Kussiloff; in wet places near beach, Wrangell and Howkan. 



C macrochceta C. A. Mey. 



In bogs at Sitka, 1000 feet above sea-level ; on mountain 

 top about 1200 feet, Kadiak. 



C. salina Wahlbg. var. cuspidata Wahlbg. 



On flat in rich soil, Kussiloff. The specimens were low, 

 from only 10 to 17 cm in height, but agree very well with the 

 Norwegian plant ; it is very interesting to notice that the 

 species exhibits exactly the same variation in Alaska as in 

 Norway, thus the var. reduota (Drej.) has been collected by 

 Mr. James M. Macoun on St. Paul Island, while the var. 

 kcematolepis (Drej.) was collected on the same island by Mr. 

 Thos. H. Kearney Jr. 



C. stygia Fries. 



Common on flats near edge of bog, Kussiloff ; in bogs and 

 wood meadows, Howkan, Sitka. 



C. livida Willd. 



In rather dry places, Sitka. Specimens very tall, reaching 

 until 30 cm in height. 



