CEYPSIS. VILFA. 139 



1. PHLEUM PEATENSE, Linnceus (Timothy Catstail). 

 See page 19. 



2. PHLEUM AI^PTNVM, Linnceus (Mountain Catstail). 

 Alpine tops of the White Mountains, New Hamp- 

 shire 3 and high northward. 



5. CRYPSIS-Aiton. CEYPSIS. 



GENEEIC CHAEACTEE. 



Spikelets 1-flowered, in clusters which are crowded 

 in a dense head or short spike, bracted by the upper- 

 most leaves ; glumes, palets, etc., as in the next 

 genus, or rather thinner. Low and spreading-tufted 

 annuals, natives of the East, with short leaves ; the 

 sheaths of the upper spathaceous. 



(A Greek name, " concealment.") 



The spikes, at first, are partly hidden by the sub- 

 tending sheaths. 



1. CEYPSIS SCHOEISTOIDES, Lam. Waste places, 

 streets of Philadelphia and Vicinity ; also Wilming- 

 ton (Delaware) common. 



6. VTLFA Adanson, Pd' Beauveois. BUSH GEASS. 



GENEEIC CHAEACTEE. 



Spikelets 1-flowered, in a contracted or spiked pan- 

 icle ; glumes 1-nerved or nerveless, not awned or 

 pointed, the lower smaller ; flower nearly sessile in 

 the glumes ; palets 2, much alike, of the same texture 

 as the glumes (membranace chartaceous), and usually 



