550 POACE^. 



strict, dense, linear, spikelike or more or less interrupted, 6-18 cm., 

 long, rays stout, nearly erect, in clusters of 3-5, densely flowered for 

 most of their length. Pistillate spikelets linear-oblong, 7-9 mm., 

 long, 3-o-flowered, longest joint of rachilla about 1 mm. long; 

 empty glumes smooth, subecpial, ovate-lanceolate or linear-oblong, 

 3-nerved, first 5-9 mm., second 7-8 mm. long; floral glume tinged 

 with purple, carinate, puberulent, 5 mm. long, often pubescent 

 near the base, oval, acute, mucronate or obtuse-erose; palea as long 

 as its glume, linear, puberulent, ciliate on the nerves. Lodieules 1 

 mm. long. Ovary obovoid-oblong, pubescent, 1-1.7 mm. long, 

 stigmas terminal plumose, 2-2.5 mm. long. Staminate spikelets 

 with glumes and palea each 1-2 mm. longer. Anthers 3.2 mm. 

 long. 



In my opinion this is a very good Poa and need not be jilaced 

 in a distinct genus, as some have proposed. Plants seen were from 

 the lower St. Lawrence and Alaska. 



Labrador, J. A. Allen 2-4; Canada, Pr ingle; Alaska, Harring- 

 ton, Turner. 



Lower Canada to Alaska, along the coast in gravelly beaches. 



34. P. pseudopratensis Scribn. & Eydb. in herb. 



A smooth perennial, 20-30 cm. higli with creeping rootstocks. 

 Culms terete. Sheaths longer than tlieir iuternodes; ligules 2 mm. 

 long; blades flat, tapering toward the abruptly keeled apex, 10-18 

 cm. long, 2.5-3 mm. wnde. Panicle ovoid or oval, rays smooth in 

 pairs, the longest about 4 cm. long; jiedicels mostly 1.5 mm. or 

 more in length. Empty glumes 3-nerved, subequal, 5-5. 5 mm. long,. 

 3-nerved; floral glume 5.5-6 mm. long; palea about 5 mm. long. 



Alaska (Adakli Island), Voyage of Albatross July 1, 1893. 



35. P. flava L. Sp. PI. 68 (1753). Fowl Meadow-gkass. P. 

 serotina Elirli. Beitr.6:83 (1791), name only. P. crocata Michx.. 

 Fl. Bor. Am. 1:68 (1803), fide Munro. P. palustris II. Mart. 

 Prod. Fl. Mosq. 19 (1812). P. nemoralis Pursh, Fl. Am. Sept.. 

 1:79 (1814). P. liydrophiila Thuill. Steud. Nom. Ed. 1, 636, 

 638(1821). P.triflora Cilib. Exercit. 531. P. elegans Hall. f. 

 Steud. Xom. Ed. I, 2:359 (1841). P. angustifoUa Eeichb. FL 

 Germ. E.xcurs. 47 (1850). 



