149 



Fig. 118. Colpodium pendulinum (Laest.) Griseb. NODDING COLPO- 

 DIUM.— a, A 5-flowered spikelet; b, a single floret. Fig. 564 in Bui. 17 illus- 

 trates a second species of Colpodium. 



118. COLPODniM Trin. Fund. Agrost. 119. 1820. Spikelets 1, 2, rarely 3- 

 flowered. Empty glumes 1-nerved or nerveless, thin membranaceous or hya- 

 line, awnless; flowering glume thin membranaceous, broad, very obtuse, 5- 

 nerved, the nerves obscure. Palea a little shorter than the 1st glume, hyaline, 

 2-nerved. Stamens 3. Styles short, distinct; stigmas plumose. Grain oblong, 

 exsulcate free, within the palea. Slender annuals or biennials with narrow, 

 sometimes setaceous leaves and slender, diffuse, usually, capillary panicles with 

 small spikelets. 



Species 10 or 12, in central and eastern Asia, northern Europe, and Arctic 

 America. 



