192 



CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Setaria coirugata Schult. Mant. 2: 276. 1824. Based on Panicum corrugatum Ell. 

 Chamaeraphis corrugata Kuntze, Rev. Gen. PI. 2: 770. 1891. Based on Panicum 

 corrugatum Ell. 



Chaetochloa corrugala Scribn. U. S. Dept. Agr. Div. Agrost. Bull. 4: 39. 1897. 

 Based on Setaria corrugata Ell., an error for Panicum corrugatum Ell. 



Chaetochloa hispida Scribn. & Merr. U. S. Dept. Agr. Div. Agrost. Bull. 21: 25./. IS. 

 1900T "In sandy pine woods. Type specimen in the Gray Herbarium, collected [at 

 La Grifa, Pinar del Rio, Cuba] by C. Wright in January, 1865, no number." This 

 specimen agrees with Chaetochloa corrugata, except that the blades are somewhat 

 hispidulous, as are also the sheaths. The sheaths are not infrequently appressed- 



pilose in Florida specimens. Hitchcock's 

 ( i\ //// . / no. 519 from Marco, Florida, with hispid 



sheaths, was identified by Merrill as C. 

 hispida. 



Setaria hispida Schum. Just's Bot. Jahresb. 

 28 1 : 417. 1902. Based on Chaetochloa 

 hispida Scribn. & Merr. 



The plants described by Scribner and 

 Merrill 1 under Chaetochloa coirugata pa.vi- 

 flora are here included under C. corrugala, 

 but the name is a synonym of C. geniculata. 



DESCRIPTION. 



Plants annual, branched at base, erect or 

 geniculate-spreading; culms scabrous, or 

 the lower part smooth, more or less ap- 

 pressed-hispid at the nodes, as much as 1 

 m^ter tall; sheaths compressed -keeled, 

 scabrous at least towaid the summit, vil- 

 lous on the margin or sometimes appressed- 

 pilose all over; ligule a densely ciliate 

 membrane about 1 mm. long; blades flat, 

 gradually nai rowed to the base and to the 

 acuminate apex, scabrous on both surfaces, 

 as much as 30 cm. long and 1 cm. wide, the 

 middle culm blades commonly 15 to 25 cm. 

 long and less than 5 mm. wide, rarely sparsely pilose; panicles densely flowered, 

 cylindric, in larger specimens sometimes interrupted at base, as much as 15 cm. 

 long, usually less than 10 cm., the axis densely hispid-scabrous, and also rather 

 densely villous with ascending hairs about 1 mm. long; branches 1 to 3 mm. 

 long, hairy, bearing several spikelets (mostly 5 or 6), ana 1 to 3 bristles below 

 each spikelet; bristles somewhat flexuous, antrorsely scabrous, mostly about 3 

 times as long as the spikelets, or as much as 2 cm. long, green, tawny, or purple 

 spikelets about 2 mm. long, turgid on the convex side; first glume about half as long; 

 as the spikelet, 3-nerved; second glume a little shorter than the spikelet, 5-nerved; 

 sterile lemma as long as the spikelet, 5-nerved; fertile lemma coarsely transversely 

 rugose. 



DISTRIBUTION. 



Sandy woods, along the coast and also a weed in cultivated fields and waste places, 



North Carolina to Florida and Mississippi; also in Cuba. 



North Carolina: Wilmington, Hitchcock 201. Newbern, Kearney 2221. 



Florida: Hillsborough County, Fredholm 6401. Eustis, Biltmore Herb. 10340; Nash 

 640, 1382; Hitchcock 2352. Jacksonville, Curtiss 3616, 4041, 5124. Miami, 

 Pollard & Collins 253; Hitchcock 645; Eaton 337; Chase 3909, 3952. Lake City, 



- Chaetochloa, corruguta. From Pollard & 

 Collins 253, Florida. 



1 U. S. Dept. Agr. Div. Agrost. Bull. 21: 24./. 12. 1900. 



