524 poACE.i;. 



A coarse stiff grass, 40-90 cm. liigli. Shcatlis of sterile slioots 

 compressed, tliose above keeled ; ligule 3-5 mm. long; blades sea- 

 Ijrons, 20-GO em. or more long. Clusters of spikelets often pink- 

 ish, ovoid, forming a panicle, S-l.'i cm. or more long; floral glume 

 lanceolate, 4-G mm. long; palea bifid, nerves ciliate. 



Vermont, Priiigle; New York, Clinton for Dr. Clark 1396; 

 Michigan, Beal 106, 107, Clark 1999. 



A grass which has been long and favorably known in cultivation 

 in Europe and some other countries; now exhibiting a remarkable 

 number of forms, varieties, and races. See Vol. 1, Fig. 63, for a 

 more extended account. 



134. (33L>). Cynosueus L. Sp. PL 72 (1753). Fah-onn Adans. 

 Fam. 3:490 (1763). Fhuluna Dum. Agrost. lielg. 80. 114 

 (1833). 



Spikelets dinior})hous, clustered on a unilateral spikelike j)ani- 

 cle, the outer spikelet of each cluster consisting of several glumes, 

 all empty; the other spikelets containing 3-5 flowers; em jity glumes 

 linear or sublanceolate ; floral glume broader, membranous, 1-3- 

 nerved (rarely 5-nerved), mucronate or sometimes awned; })alea 

 with two ciliate nerves. Stamens 3. (J rain adherent to the floral 

 glume and palea. 



There are 3 or 4 species with a wide range over the temperate 

 regionsof the Old World, and one is now naturalized in several other 

 countries. It is remarkable for having tlie lower spikelets barren, 

 and the spikes are elegantly pinnate with empty glumes. 



1. C. CRISTATUS L. 1. C. CrK.STKD I)0(i',S-TAIL. C. HCffh'chlS 



Opiz, Natural. 9:151 (1825). (\ poly bract eat us Vow. \'oy. Barb. 

 3:97. 



A rather slender slightly tufted erect perennial, 30-60 cm. high. 

 Sheaths smooth, shorter than the internodes, the upper ones slightly 

 inflated, often reaching only to the middle of the plant; ligule 

 oblique, about 1.5 mm. long, blades of culm flat, 3-10 cm. long, 

 1.5-3 mm. wide. Spike semi-cylindrical, oblong or linear. 3-10 

 cm. long, the clusters of spikelets all regularly turned to one side, 

 the empty spikelets forming involucres to each cluster. 



Massachusetts, Faxon; ^fichigan, Bral 108. 



