ROWLEE: GENUS CosTUs IN CENTRAL AMERICA = 291 
at the apex, subauriculate at the base, shining green above, giacuous be- 
neath, petioles 6 mm. long, sheath shorter than the internodes, ligule 5 mm. 
long, three or four leaves approximate to the base of the spike, venation 7735. 
Spike oblong, 7 cm. long, 2.3 cm. thick, very compact. Bracts nearly orbi- 
cular, 2.5-3 cm. in diameter. Bracteole 1.5 cm. long, relatively broad, boat- 
siaped dextrad. Ovary 5 cm. long, glabrous, subtrigonous, seeds very numer- 
ous, angular with elater-like aril. Calyx 5 cm. long, campanulate and with 
very short broad lobes and red margins. Corolla orange-red, 2 cm. long, 
dilated at the apex, lobed to the middle, lobes oblong, acute. Labellum 3 cm. 
long, obovate, subtrilobed, yellow.- Stamen 2.5 cm. long, lanceolate, obtuse, 
anther adnate above the middle. 
. Costus congestus sp. nov. 
Stem less sa 1 m. high. es akin near the summ mit; 
m. 
m. lo 
base, the lobes unequal, oblong, pended at the ora petals 
large, Ryaline, obtuse; labellum 4 cm. long. [PLATE 14.] 
GUATEMALA: Escuintla, 1100 ft. alt., March, 1890, J. Donnell 
Smith 2036 (Type); Santa Lucia, Dept. Escuintla, 1045 ft. alt., 
March 3, 1905, W. A. Kellerman 5284; Santa Barbara, Dept. 
Solola, 1370 ft. alt., August, 1891, J. Donnell Smith 137. Type 
specimen in the herbarium of Cornell University. 
Mexico: vicinity of Choapam, pees, 3800-4500 ft. alt., 
July 28, 1894, E. W. Nelson git. 
The species is glabrous in all its parts. It differs from C. 
spicatus (Jacq.) Sw., to which Baker referred some of the speci- 
mens, in the size of the flower and in the shape and size of the 
spike. 
12. Costus NuTANS K. Schum.; Engler, Pflanzenreich 4**: 407. 
1904 
The type material of C. nutans came from the following local- 
ity: near Aguacate, Costa Rica, September, 1857 (in flower), C 
Hoffman 727. 
The only specimen seen by the writer was collected on Mount 
Pirri, Panama, on June 12, 1912, by E. A. Goldman (No. 1963) 
at an altitude of 1350 m. [PLaTE 15. 
