HITCHCOCK AND CHASE NOKTH AMERICAN PANICUM. 253 



South Carolina: Orangeburg, Hitchcock 1381; Pacolet, House 2492; Clemson 

 College, House 2413; Aiken, Kearney 243, Ravenel. 



Georgia: Augusta, Cuthbert 1157, 1158; Kearney 217; Lookout Mountain, Ruth 

 1, 6, 75; Union, Harper 1087; Millen, Curtiss 6828; Thomson, Bartlett 1459. 



Florida: Monticello, Combs 306; St. Andrews Bay, Tracy 9137. 



Kentucky: Bell County, Kearney 594. 



Tennessee: Cocke County. Kearney 968. 



Alabama: Pisgah, Ctae 4470; Valley Head, ItalA 21; Tuskegee, Carver 28, 67; 

 Cullman County, Eggert 13, 23; Anniston, Tracy 7402; Mobile, Kearney 25; 

 Springhill, Langlois 43. 



Mississippi: Starkville, Tracy 47; Jackson, Hitchcock 1307; Enterprise, Tracy 

 3296 in part; Biloxi, Hitchcock 1078, 1084, Kearney 320, Tracy 4576, 4597; 

 Ocean Springs, Tracy 13; Mississippi City, Hitchcock 1095, 1099, 1102; Moss 

 Point, Tracy 4604; Cat Island, Tracy 433; Petit Bois Island, Tracy 4607. 



Arkansas: Little Rock, Coville in 1887; Miller County, Eggert 115; Benton 

 County, Plank 49, 99. 



Louisiana: Calhoun, Ball 69; Hitchcock 1284; Shreveport, Hitchcock 1241; Breton 

 Island, Tracy <fc Lloyd 468; Lake Charles, Hitchcock 1126, 1132, 1134, 1136, 

 1137. 



Texas: Waller County, Hitchcock 1181, 1190, 1213, 1216, Thurow 2, 4, 10, 30; 

 Houston, 5C&6 1259; Hall 832; Denison, Ec66 1434; Terrell, Warburton 12; 

 Columbia, Bush 177; Weatherford, Tracy 7946; Victoria, Plank 4; Milano, 

 Griffiths 6551; Galveston, Plank 34. 



Oklahoma: Sapulpa, #msA 1218; Stillwater, Hitchcock 562. 



Mexico: San Luis Potosi, Schaffner 1037; Jalapa, Pringle 7883 (Hitchcock Herb.) 

 8344; Chinantla, Liebmann 327; Orizaba, Botteri; Schiede & Deppe "acumi- 

 natum b " (Berlin Herb.), Schaffner 138 (Paris Herb.); Cordoba, Schaffner 285 

 (Paris Herb.). 



Guatemala: Coban, Tuerckheim 56 in part; crater of Pacaya Volcano, Keller- 

 man 6236. 



Costa Rica: Abejonal, Tonduz 7878; San Pedro de la Calabaza, Tonduz 10745 

 in part; Copey, Tonduz 11866. 



Venezuela: Fendler 1638. 



149a. Panicum sphaerocarpon inflatum (Scribn. & Smith) Hitchc. 



Panicum infiatum Scribn. & Smith, U. S. Dept. Agr. Div. Agrost. Circ. 16 : 5. 1899. 

 "Type No. 4622, S. M. Tracy, collected at Biloxi, Miss., October, 1898." The type, 

 in the National Herbarium, is a branching plant, decumbent and rooting at the lower 

 nodes, the loose sheaths prominently tuberculate, the loosely flowered panicles 

 mature. 



Panicum mississippiense Ashe, Journ. Elisha Mitchell Soc. 16: 91. 1900. "Col- 

 lected by me on the banks of the Mississippi River below New Orleans in October. I 

 also refer here S. M. Tracy's No. 6777, collected on Home Island, Miss., in July, 1899." 

 The type specimen could not be found in Ashe's Herbarium. According to Tracy the 

 number of the second specimen mentioned is a misprint for 6471. This specimen is 

 in Ashe's herbarium. The culms are in the early branching state, slender and widely 

 spreading, the branches elongated. 



description. 



Vernal form similar to that of the species, more ascending, not radiate-spreading; 

 culms on the average taller, more slender; sheaths rather looser, more commonly and 

 prominently viscid-tuberculate; ligules 0.3 to 1 mm. long; blades narrower, 5 to 10 



