502 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
PARVIGLUMIA. 
Fruit glabrous... 2.22.00... 000222 c eee cee cece cece eee 66. P. parviglume. 
Fruit with scattered appressed silky hairs. 
Culms creeping, with ascending flowering branches, not over 
0.5 meter high; blades faleate...................... 64. P. schmitzti. 
Culms clambering, usually 1 to 3 meters long; blades not 
falcate. 
Panicles 2.5 to 7 ¢m. long; blades not over 1 cm. wide, 
symmetrical at base... .2...2.0202222.2.....2.. 63. P. virgultorum. 
Panicles 10 to 15 cm. long; blades 1.2 to 2.5 em. wide, 
unsymmetrical at base. .......,.2.2..2......... 65. P. schiffneri. 
63. Panicum virgultorum Hack. 
Panicum virgultorum Hack. Oesterr. Bot. Zeitschr. 51: 369. 1901; Contr. U. 8. Nat. 
Herb. 15: 125. 1910. 
DISTRIBUTION. 
Hedge rows, brushy banks, and cultivated fields, southern Mexico to Panama. The 
type specimen from Costa Rica. 
Veracruz: Jalapa, Jitchcock 6630. 
Cérdoba, Hitchcock 6441. Ori- 
zaba, Amer. Gr. Nat. Herb. 
64. 
GUATEMALA: Guatemala City, Hitch- 
cock 9074. Chacula, Seler 2708. 
Coban, Tiirckheim 3788. 
Costa Rica: San José, Hitchcock 
8490. Alajuelita, Tonduz 8818, 
8829. Tres Rios, Pittier & 
Tonduz 4326. San Francisco, Rio Térres, Jiménez 49. San Juan, Jiménez 
919. 
Panama: El Boquete, Hitchcock 8317. 
Fig. 85.—Distribution of P. virgultorwm. 
64. Panicum schmitzii Hack. 
Panicum schmitzii Mack. Ann. Naturhist. Hofm. Wien 17: 254. 1902; Contr. U. 8. 
Nat. Herb. 15: 125. 1910. 
DISTRIBUTION. 
Shaded rocky slopes, central and 
southern Mexico. The type specimen 
from Mexico. 
San Luis Potosi: Las Canoas, 
Pringle 3817. 
Veracruz: Cordoba, Hitchcock 
6423, 6446. Orizaba, Amer. 
Gr. Nat. Herb. 65, Fia. 86.—Distribution of P. schmitzii. 
65. Panicum schiffneri Hack. 
Panicum schiffnerit Hack. Ergeb. Bot. Exped. Akad. Wiss. Siidbras. 11. 1906; Denk- 
schr. Kais. Akad, Wiss. Wien 79: 72. 1908. The type specimen, in Hackel’s herbar- 
ium, was collected in southern Brazil by Wettstein and Schifiner in 1901. 
