84 



Fig 62 Calamovilfa brevipilis (Torr.) Scribn. SHORT-HAIRED REED- 

 GRASS -a A spikelet; b, the same with the empty glumes removed. Fag. 495 

 in Bui. 17 illustrates another species of this genus. 



62 CALAMOVILFA Scribn. in Hack. True Grasses, 113. 1890. Spikelets 

 1-flowered, hermaphrodite; rachilla articulated above the. empty glumes, but 

 not prolonged bevond the floret, callus densely bearded. Glumes 3, laterally 

 compressed, keeled, chartaceous, awnless; the first two empty, unequal, acute, 

 somewhat shorter than the flowering glume; flowering glume 1-nerved, 

 acute. Palea as long as its glume. Stamens 3. Styles distinct; stigmas plu- 

 mose. Grain loosely inclosed within the flowering glume and palea, free. 

 Rather tall, rigid perennials, with loosely spreading panicles. 



Species 2 or 3, in the United States. 



