CHLORIDES. 



395 



rachis, overlapping for about one-half their length; empty glumes 



narrow, each witli one broad nerve; floral 



glume hyaline, oval, silky hairy, about 1.5 



mm. long, 3-nerved; palea as long as its 



glume, hairy on the keels. Grain oblong, 



smooth. 



Mexico, Pringle 425, Dr. Palmer 198, 

 616, Sclmfner IGO. 



It has also the range of the genus. 



A tiny perennial tuft, not rare on plains 

 in Mexico, enjoying the attention of close- 

 nibbling goats. 



83. (170). Capriola Adans. Fam. 2 : 31 

 (1763.) Dactilon Vill. Hist. PL Dauph. 

 2: 69 (1787). Fihichia Koel. Gram. Gall, et 

 Germ. 308 (1802). Cynodon Eich. ; Pers. 

 Syn. 1:85 (1805). 



Spikelets 1-flowered, awnless, singly 

 sessile in 2 rows on one side of slender 

 spikes, digitate at the end of the peduncle, 

 rachilla articulate immediately above the 

 outer glumes, and either not produced beyond 

 the floret or continued into a minute point 

 behind the palea. Empty glumes keeled, 

 persistent, or deciduous; floral glume broader, boat-shaped, with a 

 prominent keel; palea narrow or rather broad, the nerves prom- 

 inent, distinct or closely contiguous. Stamens 3. Styles distinct, 

 stigmas clothed with short hairs. Grain oblong, smooth, enclosed 

 by the glume and palea, but not adherent. 



Perennials; tufted, creeping or stoloniferous, with short or 

 rarely long, narrow, flat leaf -blades. 



There are four species found in warm regions. 



The genus has the slender spikes and small spikelets of Micro- 

 chloa, but the spikes are several and digitate and the rachilla is 

 produced beyond the rachis into a small joint or bristle. 



1. C. Dactylon (L.) Kuntze, Rev. Gen. PI. 764 (1891). 



Fig. 69. — Microchloa 

 setacea A, spikelet; a, 

 floral glume; b, pulea. 

 (After Doell.) 



