AGROSTII)E.E. 257 



South Carolina. Favenel; Florida, A. H. Cnrtiss 3204:; Texas, 

 Wright. 



35. M. Pringlei Scribn. Bull. Torr. Club, 9: 80 (1882). 



A slender erect rather rigid densely-tufted perennial, 30-40 

 cm. high. Sheaths longer than tlie iuternodes; ligule broad, de- 

 current, irregularly cut, 1 mm. long; blades involute, filiform, sea- 

 brid, about 7 to each culm, 6-15 cm. long, the lower ones sliorter. 

 Panicle slender, contracted, rather densely flowered, 6-10 cm. long. 

 Spikelets subsessile or on short pedicels, emj^t}' glumes subequal, 1- 

 nerved, with slender acuminate points, 2-3 mm. long; floral glume 

 lanceolate, nearly or quite smooth at the base, 3-nerved, scabrous 

 on the keel above, 3-4 mm. long, the awn 8-12 mm. long; palea 

 nearly as long as its glume. 



Arizona, Pringle. 



36. M. parviglumis Vasey, Monog. Grasses TJ. S. and Brit. 

 Am. 71 (1890); Contrib. U. S. Nat. Herb. 3:71 (1892). 



A branching scabrous grass, 50-70 cm. high. Sheaths ratlier 

 loose, the lower ones longer than the internodes; ligule lascerate, 

 2.5 mm. long; blades flat or involute, 4-8 cm. long, about 2 mm. 

 wide. Panicle partially enclosed, narrow, thin, 15-20 cm. long, 

 rays single or the lower in twos, branching and flower-bearing to- 

 the base. Empty glumes 1-nerved, subequal or unequal 0.5-0.8 

 mm. long; floral glume linear-lanceolate, 3 mm. long, 3-uerved. 

 j^ilose below, scabrous above, awn just below the acute bifid apex; 

 awn hyaline, straight, 20-30, mm. long. 



Texas, Xeallcfi. 



37. M. longifolia Yasey, Contrib. U. S. Nat. Mus. 1 : 283 

 (1893). 



An erect light-green stout tufted perennial, 120-180 cm. 

 high. Culms hard but hollow. Sheaths sometimes spreading 

 from the culm, slightly involute; ligule stout, decurrent. 2-6 

 mm. long; blades of the culm scabrous, convolute or conduplicate, 

 80-100 cm. long, 0.5-1 mm. diam., with very long slender points. 

 Panicle yellowish brown, linear-lanceolate (or spreading ?), 40-60 

 cm. long, rays scattered, appressed, capillary, branching, mostly 

 flower-bearing on the terminal half, the longest 10-15 cm. long. 



