86 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
about one-fifth as long as the spikelet, broad, loose and truncate, obscurely nerved; 
second glume and sterile lemma equal, 5 to 7-nerved; fruit 1.8 to 1.9 mm. long, 
about 1 mm. wide, obovate-elliptic. 
DISTRIBUTION. 
Sea beaches, extensively creeping and acting as a sandbinder, along the Gulf Coast, 
Alabama to Louisiana, native to trop- 
ical and subtropical coasts of both 
hemispheres. 
AtaBAMA: Mobile, Curtiss 6513, 
Kearney 17, Mohr in 1876, 1877, 
and 1882. 
Mississippi: Biloxi, Chase 4377, 
Kearney 342, Pollard 11682; 
Horn Island, Tracy 3861; 
Ocean Springs, Tracy 38; Deer 
Island, Tracy in 1898. 
Loursrana: Cameron, Cocks 2186, 
Baton Rouge (in rice fields 
along the Mississippi River), Fulton in 1907; Plaquemines County, Langlois 
in 1882; Pointe a la Hache, Langlois in 1884. 
Nicaraaua: Flint in 1868, 
Cupa: Habana, Leén 296, 563. 
Braziu: Itajahy, Ule 567. 
Fig. 76.—Distribution of P. repens. 
43. Panicum gouini Fourn. 
Panicum gouini Fourn. Mex. Pl. 2: 28. 1886. This name was earlier listed without 
description by Hemsley.¢ Fournier cites “Vera Cruz (Gouin n. 4, julio).”” The 
type specimen is in the Paris Herbarium. 
Panicum gouint pumilum Fourn. Mex. PI. 2: 28.1886. This name was earlier listed 
without description by Hemsley.¢ Fournier cites two specimens as follows: ‘* Vera 
Cruz (Virt[Er] n. 1300); Antigua in pratis humidis (Lizsm[ANN] n. 450).” The first 
could not be found; the second, in the Copenhagen Herbarium, is labeled “ Panicum 
Gouini Fourn.” in Fournier’s writing. It consists of six small plants of this species. 
A specimen of this number in the United States National Herbarium, also labeled 
in Fournier’s hand, is also this species. 
Panicum repens confertum Vasey, Bull. Torrey Club 18: 25. 1886. “Collected in 
Louisiana by A. B. Langlois.’”? The type, in the 
National Herbarium, was collected “In sandy beach 
of Gulf, Bay] St. Louis, Miss., 13 Sept., 1883,”’ the 
published locality being an error, doubtless due to 
the fact that the printed label bears Langlois’s home 
address, ‘‘Pointe-a-la-Hache, La.,’’ the written 
locality being overlooked. 
Panicum halophilum Nash in Lloyd & Tracy, 
Bull. Torrey Club 28: 86. 1901. Based on “P. 
FiG. 77.—P. gouini. From type repens L. var. confertum Vasey, not P. confertum 
specimen. sus . . 
Desv. 1816.’’ A description is given and one 
specimen cited, Petit Bois Island, Miss., Tracy 4566. 
a Biol. Centr. Amer. Bot. 3: 489. 1885. 
