124 



Fig. 93. Gynerium argenteum Nees. — a, The empty glumes of a pistillate 

 spikelet; b, a pistillate spikelet, the empty glumes removed; c, the empty glumes 

 of a staminate spikelet; d, a staminate spikelet, empty glumes removed. 



93. GYNERIUM H. B. K. Plant. JEquin. 2 : 112, 1. 115. 1809. Spikelets loosely 

 2- to many-flowered, dioecious; rachilla articulated above the empty glumes, 

 usually long-pilose, at least in the fertile spikelets. Empty glumes 2, narrow 

 and very long, acuminate-pointed; flowering glumes very narrow, produced 

 into long subulate points, the back and margins clothed with long silky hairs; 

 flowering glumes in the staminate spikelets usually smooth. Tall, reed-like, 

 perennial grasses, with solid culms and very long, narrow leaves, which are 

 chiefly from the base, and ample, showy, terminal panicles. 



Species 3, in the warmer regions of South America; one introduced into the 

 United States and cultivated for ornament under the name of Pampas grass. 



