24 



CHiETOCHLOA CORRUGATA PARVIFLORA (Poir.) n. comb. CencJims 



jxtrvijloms Poir. in Lam. Encycl. 6: 52 (1804). Setaria ventemifd Kunth Rev. 



Gram. 1: 251. t. 37 (1829). Panicum glaucum purpurascens Ell. Sk. Bot. S. Car. 



&Ga. 1: 113 (1817). (Fig. 12.) 



A more slender form 2 to 7 dm. high, much branched from the base, leaves shorter, 



panicles exserted, 2 to 7 cm. long, branches few-flowered, setee spreading, green 



or purple; spikelets as in the type. 



In fields and waste places, South Carolina to Florida, West Indies. April-October. 



Specimens examined.— Specimen in Herb. Phil. Acad. Sci., collected by Elliot, 



South Carolina or Georgia. 

 Florida: Indian River, Curtiss 

 1879; Jacksonville, 5124 Curtiss 

 1894; 4041 Curtiss 1893; without 

 locality, Cm'tissl885; Vesterand 

 1889; Duval Co., 187 Fredholm 

 1893, Eustis640, 1382 Nash 1894; 

 Lake City, 140 Combs & Rolfs 

 1898; Gainesville, 721, 723 Combs 

 1898; Homosassa, 945 Combs 

 1898; Barstow, 1177 Combs 1898; 

 Old Town, 865 Combs 1898; 

 Dunnellon, 914« Combs 1898; 

 Manatee Co., 1287, 1292 Combs 

 1898; Miami, 253 Pollard 1898. 



14. 



= = Leaves pilose or pubescent. 

 CH^TOCHLOA GIBEOSA 



sp. nov. 

 An erect , densely caespitose, pubescent 

 perennial, 4 to 7 dm. high, with 

 rather loose, cylindrical, exserted 

 panicles, compressed sheaths, and 

 linear-lanceolate leaves, which 

 are strongly pilose on both sides 

 with long spreading white hairs. 

 Culms slender, smooth, cylin- 

 drical; nodes brown or black, 

 smooth; sheaths loose, striate, 

 smooth, the margin densely 

 ciliate with long erect white 

 hairs, bearded at the apex ; ligule 

 brown, about 1 mm. long, densely 

 ciliate-fringed with \\hite hairs 

 3 or 4 mm. long; leaf-blades 1 

 to 2.5 dm. long, 5 to 7 mm. 

 wide, abruptly romided at the base, long-acuminate, scabrous on both sides 

 and on the cartilaginous margins. Panicle 5 to 7 cm. long, loose, branches 

 very short, few-flowered; setae 1 or 2 at each si)ikelet, spreading-erect, flexu- 

 ous, 8 to 15 mm. long, antrorsely scabrous. Spikelets ovate-globose, 2 mm. 

 long, acute; first glume nearly one-half as long as the spikelet, broadly ovate- 

 cordate, obtuse, apiculate, 5-nerved, inclosing the base of the spikelet; second 

 glume broadly ovate, obtuse, aljruptly apiculate, 5 to 7 nerved, about four-fifths 

 as long as the spikelet; third glume equaling and slightly inclosing the flower- 

 ing glume, 5-nerved, plane, subtending a lanceolate, hyaline palea; flowering 



Fig. 12. — Chcetochloa corrvgata imrviflora: a, branch 

 showing two spikelets and sette; 6, spikelet; c,d, 

 views of the ilowering glume. 



