MANUAL OF THE GRASSES OF THE UNITED STATES 



341 



32. Agrostis longiligula Hitchc. (Fig. 698.) Culms erect, about 60 

 cm tall ; ligule 5 to 6 mm long; blades 10 to 15 cm long, 3 to 4 mm wide, 

 scabrous; panicle narrow, but loosely flowered, bronze-purple, 10 to 15 

 cm long, the branches very sca- 

 brous ; glumes 4 mm long ; lemma 

 2.5 mm long, bearing at the middle 

 a bent exserted aw^n; palea min- 



Figtjre 695.— Distribution of 

 Agrostis canina. 



ute. Qi — Bogs and marshes at 

 low altitudes, Tillamook County, 

 Oreg.,to Mendocino County, Calif. 



Agrostis nebtjl6sa Bois. and Reut. 



Ha, 

 W 



Figure 696.— Agrostis borealis. Panicle, X 1; glumes 

 and floret, X 5. (Faxon 99, N.H.) 



Cloudgrass. Culms slender, branching 



about 30 cm tall; foliage scant; panicle delicate, oblong, half as long as the plant, 

 the branches in verticils; spikelets 1 mm long. O (Sometimes called A. capil- 

 laris, not A. capillaris L.) — Cultivated for dry bouquets. Spain. 



65. PHIPPSIA (Trim) R. Br. 



Spikelets 1-flowered, the rachilla disarticulating above the glumes, 

 not prolonged; glumes unequal, minute, the first sometimes wanting; 

 lemma thin, somewhat keeled, 3-nerved, abruptly acute; palea a lit- 

 tle shorter than the lemma, dentate. \HkNti 

 Dw^arf, tufted perennial, with narrow, WifMl/ 

 few-flowered panicles of small spike- .V^Mfflf Mw/ 

 lets. Type species, Phippsia algida. 

 Named for C. J. Phipps. ^M^f I flffl 



Figure 697.— Distribution of 

 Agrostis borealis. 



1. Phippsia algida (Soland.) R. Br. 

 (Fig. 699.) Culms densely tufted, 2 ^ 

 to 10 cm tall; blades soft, narrow, 

 with boat-shaped tip ; lemma about 1.5 

 mm long. % — Summit of Gray's 

 Peak, Colo.; Arctic regions of both 

 hemispheres. 



66. COLEANTHUS Seidel 



Spikelets 1-flowered; glumes wanting; lemma ovate, hyaline, ter- 

 minating in a short awn; palea broad, 2-toothed, the keels awn-tip- 

 ped. Dwarf annual, with short flat blades and small panicles. Type 

 species, Coleanthus subtilis. Name from Greek koleos, sheath, and 

 anthos, flower, alluding to the sheaths enclosing the base of the panicles. 



Figure 698.— Agrostis longiligula 

 1; glumes and floret, X 5. 



Panicle, X 

 (Type.) 



