102 PANICACE^. 



nitlior loose, mostly shorter than the inteniodes ; ligule a ciliate 

 ring; blades flat, ueumiuate, 8-15 em. long, 1-1.5 cm. wide. 

 Panicle simple, 0-10 em. long, rays 4-8, s])ikelike, secund, sjiread- 

 ing in ilower, erect iu fruit, 2-3 cm. long, clothed with short hairs. 

 S])ikelets in pairs, 1 a:ubsessile, })ubescent, lauce-elliptieal, acute, 

 ")-() mm. long. Outer glumes soft-hairy excepting the obtuse 

 tij), ecpuil, narrowly ovate, first 5-uerved, second 8-nerved : floral 

 glume 2.5-3.5 mm. long, finely wrinkled, oblong or obovute-oblong, 

 apex subacute, with a tuft of short hairs. 



Mexico, Palmer 110% Pringle 2317. 



2. E. sericea Munro, Vasey's Contrib. U. S. Nat. Herb. 3 : 31 



A slender tufted perennial, about 50 cm. iiigh, clothed from 

 culm to spikelet with very short pubescence. Sheaths reaching 

 above the nodes ; blades flat or involute, 12-20 cm. long, 3-5 mm. 

 wide. Panicle exserted or j)artially enclosed, simple, 7-13 cm. 

 long, bearing 4-G simple, secund spikes about 2 cm. long and dis- 

 tant their own length fi-om each other. Spikelets narrowly oval, 

 acute, 4-4.5 mm. long, borne on short pedicels, on whicli some of 

 the hairs often extend to the apex of the spikelet, first and second 

 glumes ecpial, 5-nLrvcd; fertile floret oval, very briefly mucrouate. 



Texas. L'ererrJion for U. S. Dept. Agricul. 37. 



Texas and New Mexico. 



3. E. longifolia Vasey, Contrib. U. S. Xat. Herb. 3:21 (1802). 

 E. moUh h»i(jif:>lin Vasey, Bull. Torr. Club. 13:25 (1880). 



CuIjus smooth, .dender, braiu'hing, (!0-120 cm. high. Lower 

 sheatlis nearly as long as the internodes ; blades smooth, e:.cept the 

 soft hairs at the nodes, 30-00 cm. long, 2-3 mm. wide. Panicle 

 exserted, slender, 12-20 cm. long, of 5-8 pedicellate alternate 

 spikes, the lower one 5 cm. long, the others gradually shorter; 

 general rachis and rays finely pubescent. Spikelets 10-12 to the 

 sjjike. third glume destitute of a flower, fertile floret short-awned. 



Florida, Ciniiss. 



4. E. mollis Kunth, Kev. Gram. 1: 30 (1830). 



Perennial : culms smooth below, 1-2 m. high. Leaf-blades flat, 

 30-50 cm. long, 1-1.5 cm. wide, throat fringed. The nodes. 



