142 PROCEEDINGS OF THE AMERICAN ACADEMY 



257. Carex nardina, Fries, Mant. ii. 55. 



C. Ilc'pharnii, Boott, Hook. Fl. Bor.-Am. ii. 209, t. 207. 

 Upper Marias Pass, Montana, Canhy, and northward to Greenland 

 and Kamtschatka ; Cascade Mts., Oregon, Lyall, according to Boott. 

 Europe. 



258. Carex gtnocrates, Wormskjold in herb. ; Drejer, Revis. 



Crit. Car. 16. 

 C. Redowskiana^ C. A. Meyer, Cyp. Nov. t. 4. 

 C. dioica, Torr. Monogr. 387. 

 G. Fischeriana, Gay, Ann. Sci. Nat. x. 286. 

 C monosperma, Macoun in herb. ; Bailey, Carex Cat. 

 Pennsylvania and New York to Arctic America ; South Park, Col- 

 orado, Wolf. Europe. 



259. Carex dioica, Linn. Sp. PI. 972. 



G. Linn(Eana, Host, Gram. iii. 51, t. 77. 

 Maukschia Icevis, Heuff. Flora, 1844, 527. 

 Perigynium broader and more sharply angled than in the last : tips 

 of the leaves smoother. — Said to occur in Greenland. 

 2G0. Carex exilis, Dewey, Sill. Journ. xiv. 351. 



Along the coast from New Jersey to Newfoundland, La Pylaie ; 

 " borders of mountain lakes, Essex County, New York," Gray's 

 Manual. 



Section XIV. HYPARRHEN^, Fries, Summa, 72. Staminate 

 flowers borne at the base of the spikes (or iu G. bromoides and G. sic- 

 cata variously situated). 



A. Elongatm, Kuntli, Enum. Plant, ii. 402. [TenuifiorcB, Kunth, 1. c. 405. 

 Heleonastecn, Kunth, 1. c. 393. Stellulalcc, Kuntii, I. c. 399. Deweyana, Tucker- 

 man, Enum. Metli. 11. Canescenies, Fries, Summa, 72. Loliacem, Nym. Consp. 

 Fl. Eur. 780, mostly. Monastes and Lagophm, Nym. 1. c. 779.) Spikes silvery 

 green or sometimes tawny when mature, distinct, mostly small ; perigynium 

 not wing-margined nor conspicuously broadened, mostly nearly flat on the 

 inner surface. 



* Periginium ovate, sharp-margined, firm, often thickened at the base, spreading in 



open and at maturity stellate spikes. 



261. Carkx echinata, Murray, Prodr. Goett. 76. 



G. stelkdata, Gooden. Linn. Trans, ii. 144. 



G. gryposy Schkuhr, Riedgr. Nachtr. 18, f. 193. 



C. steriUs, W. Boott, Bot. Calif, ii. 236, excl. descr. 

 Culms' stiff: spikes large, all contiguous or nearly so: perigynium 

 large (usually two to three lines long), much attenuated above. — 



