\ 
82 Rhodora [May 
larged and more veiny than the others: culms usually bearing loose 
bladeless sheaths, or with only reduced blades. 
*Stoloniferous: culms mostly solitary: empty scales at the base of the 
spikelet tew (usually 7 or less). 
+ Anthers 1 mm. long: flowering spikelet obovoid; in fruit becoming 
globose, as broad as high: scales with very narrow pale margin. 
E. SCHEUCHZERI, Hoppe. Culms soft, 0.5-3.5 dm. high: caudex 
loosely stoloniferous: leaves channeled or strongly involute, much 
shorter than the culms; those of the sterile shoots soft, 3-12 cm. 
long: culms at base slightly leafy, above usually bearing a bladeless 
loose membranous-edged black-tipped sheath (2-7 cm. long) : flower- 
ing spikelet broadly obovoid or subglobose, 8—12 mm. long: scales 
lead-color or blackish, with slightly paler margins; the 1 to 3 outer 
ones ovate; the others ovate-lanceolate to lance-attenuate: fruiting 
spikelet depressed-globose, 2—2.5 cm. high: the bristles bright white : 
achenes narrowly obovoid, plano-convex or slightly 4-angled, 1.7-2.5 
mm. long, o.7-1 mm. broad, with a short slender beak. — Bot. Tas- 
chenb. (1800) 104, App.t. 7; Reichenb., Ic. Fl. Germ. viii. 35, t. 289, 
fig. 685 (1846); Ledeb., Fl. Ross. iv. 253 (1853) ; Bcklr., Linnaea, 
xxxvii. 92 (1871) & Cyp. Kónigl. Herb. Berlin, 628; Lange, Consp. 
Fl. Groenl. 129 (1880); Nyman, Consp. 762 (1882); Richter, Pl. 
Eur. i. 136 (1890); Norman, Christiania Vidensk.-Selsk. Forhandl. 
(1893) no. 16, 45; Clarke in Hook., Fl. Brit. Ind. vi. 664 (1893); 
Palla, Bot. Zeit. liv. ab. 1, 151 (1896); Britton & Brown, Ill. Fl. i. 
272 (1896), in part; Ostenfeld, Fl. Arct. 41 (1902). Æ. capitatum, 
Host, Gram. i. 30, t. 38(1801); Engl. Bot. xxxiv. t. 2387 (1812); 
Hornem., Fl. Dan. ix. t. 1502 (1818); Torr., Ann. Lyc. Nat. Hist. 
N. Y. iii. 336 (1836), except as to syn. E. callithrix ; Hook, Fl. Bor- 
Am. ii. 231 (1839), as to Labrador and Arctic plant; Anders., Cyp. 
Scand. 13,t. 2, fig. 31 (1849) and Bot. Not. (1857) 78; Macoun, 
Cat. Can. Pl. ii. 104 (1888) as to Labrador and Arctic plant at least. 
E. leucocephalum, Bcklr., Flora, xli. 419 (1858). Arctic America, 
extending south on the Labrador coast to Square Island (latitude 
52” 44'), in the Rocky Mts. to the head of Lake Louise, Alberta (lat. 
51°) and Revelstoke, British Columbia, and on the Alaska coast to 
Sitka (latitude 57°). Arctic Europe and Asia. 
+ + Anthers 1.5-3 mm. long, slightly shorter than the filaments: flowering 
spikelet cylindric; in fruit becoming obovoid, distinctly longer than 
broad: scales with broad, pale margin. 
