92 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
44a, Panicum virgatum cubense Ciriscb. 
Panicum virgatum cubense Griseb. Cat. Pl. Cub. 233. 1866. The only specimen 
mentioned by Grisebach is, ‘‘Wr. a. 1865,” that is, collected in Cuba by Wright in 
1865. The type, in the Grisebach Herbarium, bears 
the number 183 and is labeled ‘Low savannas, 
Hanabana, May 19.” 
Panicum virgatum obtusum Wood, Bot. & Flor. 
392. 1874. “N.J.”’ [New Jersey]. The whereabouts 
of the type, if it be in existence, is not known. 
The diagnosis ‘“‘ Panicle contracted; spikelets smaller, 
not pointed, obtusish,”’ seems sufficiently to indi- 
cate this subspecies. 
Panicum virgatum breviramosum Nash, Bull. Tor- 
rey Club 23: 150. 1896. ‘Collected by Dr. Small 
in clay soil in the pine lands about Augusta, 
Georgia, where it was common, June 27-July 1, 
1895.” The type, in Columbia University Herba- 
rium, is a slender plant with narrow panicles about 12 cm. long and 3 to 4 cm. wide, 
rather compactly flowered, and as a whole very like Wright’s no. 183 mentioned above, 
Fig. 81.—P. virgatum cubense. From 
type specimen. 
DESCRIPTION. 
Differs from P. virgatum in having culms more slender than usual in the species, 
solitary or few in a clump, usually narrow panicles with ascending branches, and. 
smaller spikelets, 2.8 to 3.2 mm. long, 
the first glume usually about half the 
length of the spikelet, acute but usually 
not acuminate-pointed, the second 
glume and sterile lemma about equal 
and but slightly exceeding the fruit, 
the latter about 2 mm. long. 
This combination of characters fails - 
to hold throughout. A few of the 
specimens cited below have open pan- 
icles, but the smail, obtuse spikelets 
with shorter first glume; others have Fic. 82.—Distribution of P. virgatum cubense. 
the panicle characteristic of the sub- 
species but an acuminate-pointed first glume to the small spikelets. The following 
represent these intermediate specimens: ConNecticut: Graves 244; New Jersey: 
Pearce in 1884; Norra Caroma: MeCarthy in 1885; Fiortwa: Chase 3859, 3860, 
Hitchcock 743, Tlume 37. 
DISTRIBUTION. 
Pine woods, the Atlantic Coastal Plain from Connecticut to Florida; also in the 
Bermudas and Cuba. 
CONNECTICUT: Groton, Graves 244. 
New York: Aquebogue, Scribner in 1872 (Ilitchcock Herb.). 
New Jersey: Atsion, Chase 3573; New Durham, Van Sickle in 1895; without 
locality, Pearce in 1884, 
PENNSYLVANIA: Philadelphia, Smith 109. 
Marytanp: College Park, Novik in 1907. 
Virarnta: Ashland, DeChalmot; Portsmouth, Noyes 87. 
Nortu Carona: Edenton, Kearney 1899; Tarboro, McCarthy in 1885; Wil- 
mington, Chase 3144, Coville 104, Kearney 2676; Wendersonville, Biltmore 
Herb. 700e. 
