7 WHaries - 
no A $55. ores eg 
2@. Alopecurus L. 
Perennials with denss, cylindrical, spike-like panicles. 
Spikelets 1-flowered, laterally compressed, the rachilla disarticulating 
below the glumes; glumes equal, avwnless, ciliate on the keel, distinct 
or barely united at the base; lemmas as long as the glumes, S-nerved, awned 
from the back below 
re middle, the awn straight or geniculate, included 
OAwns straight, included or only slightly exserted l. Ae aequalis 
QOAvms geniculate, spreading, long-exserted 
2 Glumes acute, 4 mm. long, pilose all over the 
@ back; rhizomes present 2e Ae alpinus 
he 
@ Glumes obtuse, 3 mue long, pilose on the nerves 
@ but not all over the back; rhizomes wanting Se Ae pallescens 
ae ee ee 
1. Ae acqualis Sobol. Little Meadow-foxtail. — Culms erect or ascending, 
often decumbent at the base and rooting at the nodes, 15-50 cm. tall; 
sheaths smooth; ligules 2-5 mm. long; blades flat, scabrous, 3-12 cm. long, 
cmt mme wide; panicles 5-6 cm. long, 3-5 mn. wide; glumes obtuse, 2-2.5 mm. 
long, pilose on the keel, and sparsely so on the back below; lemmas obtuse, 
the awn straight, included or exserted about 1 mm. (A. aristulatus Michx.; 
Ae geniculatus aristulatus (iiichx) Torr.), 
In water, swamps and wet places. 
ge Ae alpinus J. &. Smith. —>Culms erect, with rhizomes, 30-70 em. tall; 
Sheaths smooch; ligules obtuse, 3-5 mm. long; blades flat, firm, scabrous 
above, smooth beneath, 8-15 om. long, 3-5 mm. wide; panicles 2-4 cm. long, 
8-10 mm. wide, dark green, tinged with purple; glumes acute, 4 mme long, 
pilose over the entire back; lemmas obtuse, the avm from curved and spreading 
Go nearly straign! ngs (As occidentalis Scribn. and Tweedy). 
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