. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. 22. Eleocharis tenuis (Willd.) Schultes. Slender Spike-rush. Fig. 779. Scirpus tenuis Willd. Enum. I : 76. 1809. Eleocharis tenuis Schultes, Mant. 2 : 1824. Eleocharis nitida Fernald, Rhodora 1: 76. 1906. Perennial by rootstocks, culms tufted, filiform, mostly erect, 4-angled with concave sides, 8'-i6' tall. Upper sheath obliquely truncate, toothed on one
. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. 22. Eleocharis tenuis (Willd.) Schultes. Slender Spike-rush. Fig. 779. Scirpus tenuis Willd. Enum. I : 76. 1809. Eleocharis tenuis Schultes, Mant. 2 : 1824. Eleocharis nitida Fernald, Rhodora 1: 76. 1906. Perennial by rootstocks, culms tufted, filiform, mostly erect, 4-angled with concave sides, 8'-i6' tall. Upper sheath obliquely truncate, toothed on one side; spikelet narrowly oblong, mostly acute, many-flowered, thicker than the culm, 3"-$" long, about 1" in diameter; scales thin, obovate or ovate-oblong, obtuse, the midvein greenish, the margins scarious; bristles 2-4, shorter than the achene, fugacious or wanting; achene obovoid, obtusely 3-angled, yellowish-brown, papillose; stamens 3; style 3-cleft; tubercle conic, short, acute. In wet soil, Cape Breton Island to Ontario and Manitoba, south to Florida-and Texas. The achenes are more or less persistent on the rachis of the spikelet after the fall of the scales. Poverty-grass. Kill-cow. May-July. 23. Eleocharis acuminata (Muhl.) Nees. Flat-stemmed Spike-rush. Fig. 780. Scirpus acuminatus Muhl. Gram. 27. 1817. Eleocharis compressa Sulliv. Am. Journ. Sci. 42: 50. 1842. Eleocharis acuminata Nees, Linnaea g: 294. 1835. Perennial by stout rootstocks, similar to the pre- ceding species, but stouter, culms flattened, striate, slender but rather stiff, tufted, 8-2° tall. Upper sheath truncate, sometimes slightly i-toothed; spikelet ovoid or oblong, obtuse, thicker than the culm, many-flowered, 3"-6" long; scales oblong or ovate-lanceolate, acute or the lower obtusish, purple-brown with a greenish mid- vein and hyaline white margins, deciduous; bristles 1-5, shorter than or equalling the achene, fugacious, or wanting; stamens 3; style 3-cleft, exserted; ach
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
