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 awn; palea min- 



FIGURE 695. Distribution of 

 Agrostis canina. 



ute. 91 Bogs and marshes at 



low altitudes, TillamOOk County, FIGURE m.-Agrostis borealis. Panicle, X 1; glumes 



Oreg., to Mendocino County, Calif and floret ' x 5 - < Faxon "> N - H -> 



AGROSTIS NEBULOSA Bois. and Reut. 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 (Trin.) B,. 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. 

 Dwarf, tufted perennial, with narrow, 

 few-flowered panicles of small spike- 

 lets. Type species, Phippsia 

 Named for C. J. Phipps. 



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. 21 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. 



