254 



Fig. 550. Poa leckeubyi Sciibu. U. S. Dept. Agr., Div. Agros.. 

 Cir. 9 : 2. 1899. Sand Bluk-grass. — A pale green, tufted peren- 

 nial 6 to 8 <lni. high, with long, iiaiTow, Hat leaA'es, somewhat 

 iiiliated, persistent basal sheaths and pale, rather narrow pau- 

 iclt'S about 10 to 15 cm. long. Spikelets obloug-lauceolate, 5- to 

 6-flowered, 9 to 11 mm. long, with subequal, 3-nerved, acute 

 empty glumes («) and scarious-margined llowcriug glumes (c), 

 wliich arc pubescent on the back below, especially on the keel and 

 marginal nerves. — Dry and very sandy soil, AVashington. June. 



A valuable hay grass lor ' ery sandy soils. 



