284 CYPERACEAE. 
1. Elyna Bellardi (All.) C. Koch. Arctic Elyna. (Fig. 668,) 
Carex Bellardi All. F1. Ped. 2: 264. pl. 92. f. 2. 1785. 
Kobresia scirpina Willd. Sp. Pl. 4: 205. 1805. 
Elyna spicata Schrad. Fl. Germ, 1: 155. 1806. 
Elyna Bellardi C. Koch, Linnaea, 21: 616. 1848. 
Densely tufted, culms very slender, 4’-18/ tall, 
longer than the very narrow leaves. Old sheaths 
fibrillose, brown; margins of the leaves more or 
less revolute; spike subtended by a short bract, or 
bractless, densely flowered or sometimes inter- 
rupted below, 8’/-15’ long, 134//-2/’ in diam- 
eter; achenes rather less than (/ long, 14’ thick, 
appressed. 
In arctic America from Greenland to Bering Sea, 
south in the Rocky Mountains to Colorado. Also in 
Europe and Asia. Summer. 
18. KOBRESIA Willd. Sp. Pl. 4: 205. 1805. 
Slender arctic and mountain sedges, with erect culms leafy below, and few-several- 
flowered sp'kelets clustered in a terminal spike. Scales of the spikelets 1-flowered, the 
lower usually pistillate, and the upper staminate. Stamens 3. Perianth-bristles or peri- 
gynium wanting. Ovary oblong, narrowed into a short style; stigmas 3, linear. Achene 
obtusely 3-angled, sessile. [Name in honor of Von Kobres, a naturalist of Augsburg. ] 
Three or four species, the following widely distributed in arctic and mountainous regions, 
the others Himalayan. 
1. Kobresia bipartita (All.) Britton. 
Arctic Kobresia. (Fig. 669. ) 
Carex bipartita All, Fl. Ped. 2: 265. pl. So. f. 5. 1785. 
Kobresia caricina Willd. Sp. Pl. 4: 206. 1805. 
Kobresia bipartita Britton, Mem. Torr. Club, 5: ror. 
1804. 
Culms solitary or tufted, smooth or very nearly 
so, 4/-12’ tall. Leaves about '%4’’ wide, infolded at 
least in drying, usually shorter than the culm, the 
old sheaths becoming fibrillose; spike 1’ long or 
less, composed of several or numerous linear ap- 
pressed or ascending spikelets; scales somewhat 
serrulate on the keel, rather more than 14’ long; | 
mature achenes slightly longer than the scales. 
/ | \ 
19. UNCINIA Pers. Syn. 2: 534. 1807. 
Culms erect, leafy, or the leaves all basal. Spike simple, erect, terminal, the scales im- 
bricated, 1-flowered, the lower pistillate, the upper staminate. Scales ovate or oblong, con- 
cave, not keeled, obtuse or the lower acute. Stamens 3, rarely 1 or 2. Pistil enclosed in a 
utricle (perigynium), borne at the base of a slender axis, which is usually exserted beyond 
the orifice of the perigynium, at least in fruit, and sometimes hooked. Stigmas mostly 3. 
Achene 3-angled. [Latin, referring to the hooked projecting axis of the southern species. ] 
sreenland to the Canadian Rocky Mountains. Also 
in Europe and Asia. Summer. 
About 30 species, all but the following natives of the southern hemisphere. Our species dif- 
fers from Carex only in the elongation of the subulate axis within the perigynium; those of the 
southern hemisphere are very different in habit. 
