274 



CONTKIBUTIONS FEOM THE NATIONAL HERBAKIUM. 



Occasional unusually large specimens, such as Curtiss 6626, Hitchcock 678, and Tracy 

 7051, resemble P. webberianum, but may be distinguished by the smaller spikelets, with 

 smooth and shining fruits. 



The following specimens approach P. patulum in habit or in having papillose, more 

 rounded spikelets, but the blades are not pubescent on the upper surface, or but one or 

 two are pubescent, the others being glabrous: Chase 3211, 4543, 4568, 4569, Harper 1689, 

 Hitchcock 1016, Wright 3460. 



DISTRIBUTION. 



Low sandy woods of the Coastal Plain, from southeastern Virginia to Florida and 

 Mississippi; also in Cuba. 



Virginia: Cape Henry, Chase 2345; Norfolk, Vasey in 1884; Dismal Swamp, 

 Chase 3656. 



North Carolina: Roanoke Island, Chase 3211, 3224; Wards Mill, Chase 3181; 

 Jacksonville, Ashe in 1899, Chase 3193, 3194; vicinity of Wilmington, Chase 

 3113, 3129, 4568, 4569, Hitchcock 1431, 1466, 1486. 



South Carolina: Isle of Palms, Ball 792, Chase 4536, 4542, 4543, 4545. 



Georgia: Savannah, Kearney 178; Tifton, Harper 1689. 



Florida: Duval County, Curtiss 3600 A in part; Jacksonville, Curtiss 4029 

 (Hitchcock Herb.); Baldwin, Hitchcock 994, 1003; Lake City, Combs 75, 104; 

 Hitchcock 1016, 1025, 1028, 

 1033; Titusville, Chase 3970, 

 4004, 4015, Hitchcock 764, 766; 

 Sanford, Hitchcock 770, 784, 

 821, 824, 825; Eustis, Nash 301, 

 466; Pensacola, Tracy 8425; 

 Clearwater, Tracy 7051 in part; 

 Waldo Combs 686; Indian 

 River, Palmer 631 in 1874; 

 Gainesville, Chase 4239, Combs 

 744, 752; Lakeland, Hitchcock 

 844, 849; Tampa, Hitchcock 

 929,932, 937; Oakland, Curtiss 

 6626; Madison, Combs 238; Crystal, Combs 1025; Bartow, Combs 1240; Mana- 

 tee, Hitchcock 956, 977, Rugel 376; Santa Rosa Island, Tracy 6466; Pine 

 Island, Tracy 7205; Sneeds Island, Tracy 6452; Perico Island, Tracy 6730; 

 Palma Sola, Tracy 6714; Perdido, Tracy 8409; Sarasota, Tracy 7203; Semi- 

 nole, Tracy 7194, 7195; Mary Esther, Tracy 7175, 9143; Myers, Chase 4149, 

 4175, Hitchcock 864, 869, 888, 911, 913; Miami, Hitchcock 664, 678, 713; with- 

 out locality, Rugel 291. 



Alabama: Flomaton, Hitchcock 1039^; Fort Morgan, Tracy 7209. 



Mississippi: Avondale, Tracy 4581 in part; Biloxi, Kearney 330 in part, Tracy 

 2869, 6465; Mississippi City, Hitchcock 1093, 1298; Ocean Springs, Skehan in 

 1895. 



Cuba: San Juan de Buenavista, Wright 3460 (Gray Herb.). 



165. Panicum patulum (Scribn. & Merr.) Hitchc. 



Panicum nashianum patulum Scribn. & Merr. U. S. Dept. Agr. Div. Agrost. Circ. 

 27 : 9. 1900. "Type specimen: 1296 Robert Combs, Braidentown, Manatee County, 

 Fla., September 3, 1898." The type, in the National Herbarium, consists of a clump 

 of numerous prostrate culms, 18 to 32 cm. long, with mature primary panicles and 

 numerous branches with secondary panicles. 



Panicum patulum Hitchc. Rhodora 8 : 209, 1906, Based on P. nashianum patulum 

 Scribn. & Merr. 



Fig. 306.— Distribution of P. lancearium. 



