176 



Literature Cited 



House, H. D. 1924. Annotated list of the ferns and flowering plants of New 



York State. N. Y. State Museum Bull. 254. p. 1-759. 

 House, H. D. and Alexander, W. P. 1927. Flora of the Allegany State Park 



Region. New York State Museum Handbook 2. p. 1-225. illus. 

 Mackenzie, K. K. 1931-35. Cyperaceae-Cariceae. N. Am. Flora 18: 1-478. 

 Wahl, Herbert A. 1940. Chromosome numbers and meiosis in the genus Carex. 



Am. Jour. Bot. 27: 458-470. t. 1-2. 

 Zenkert, C. A. 1934. The flora of the Niagara Frontier Region. Bull. Buffalo 



Soc. Nat. Sci. 16: 1-328. 



Cornell University 

 Ithaca, N. Y. 



Papers on the Flora of Alaska — I. 

 The Genus Gicuta 



J. P. Anderson 



The species of Ciciita are of great importance on account of 

 their very poisonous properties. Losses of cattle directly attributed 

 to poisoning by C. douglasii (DC.) Coult. & Rose have occurred 

 in southeastern Alaska. There have been rumors of losses elsewhere. 



In a recent study, Mathias and Constance (1) have reduced 

 the American species of the genus to seven. Of these, three occur 

 in Alaska. The following key covers these three species : 



Fruit longer than wide, leaflets 2-4 times as long as wide. 



C. maciilata 

 Fruit shorter than wide, leaflets 5-10 times as long as wide. 



C. mackensieana 

 Fruit about equal in length and width, leaflets 1^-2 j4 times as long 

 as wide. C. douglasii 



This is probably the first report of C. inacitlata L. from Alaska, 

 although C. virosa L. reported by Porsild (2) from Hot Springs 

 on the Tanana River undoubtedly was this species. The author 

 first collected it at Knik on Knik Arm of Cook Inlet in 1931 (1382). 

 In 1935 it was collected at Circle Hot Springs (2616), as again in 

 1941 (7560). A collection at Hyder in 1939 (5501) is rather im- 

 mature but seems to be this species. A visit to Manly Hot Springs 

 (also known as Tanana Hot Springs) in 1941 revealed its presence 



