288 Row.EE: GENuS Costus IN CENTRAL AMERICA 
4. Costus HIrsutus C. Presl, Reliq. Haenk. 1: 112. 1830 
This is a much smaller plant than the foregoing, according 
to the writer’s interpretation, and is evidently not more than 
50 cm. high. The spike also is smaller. The following specimen 
seems to be characteristic: on the cattle trail between the 
Chiriqui Lagoon and the divide, western Panama, H. E. Stork 
(Rowlee & Stork 1045). Another specimen to be associated with 
the species is the following: upper stretch of the Saraquipi 
River, H. Pittier 14166. Both represent a diminutive C. villo- 
sissimus. The published descriptions of C. hirsutus are meager, 
and no drawing or photograph of the species has been seen by 
the writer. 
5. Costus BAKERI K. Schum.; Engler, Pflanzenreich 4'*°: 
387. 1904 
The following specimens of this species, all from the uplands 
of central and western Guatemala, have been studied: Barranca 
del Samala, Dept. Retalhulen, 1700 ft. alt., J. Donnell Smith 
2801; Barranca de Eminencia, Dept. Amatitlan, 1400 ft. alt., 
J. Donnell Smith 2802 (Type); Volcan Tecuamburro, Dept. 
Santa Rosa, J. Donnell Smith 4650. The following specimen 
from central Costa Rica has likewise been examined: A. Ton- 
duz 282. 
C. Bakeri is characterized by having a cylindrical and appendi- 
culate spike, more or less red in color; the appendages of the 
bracts being acute and longer than wide. In these respects it 
agrees with C. comosus (Jacq.) Roscoe, of northern Colombia 
and Venezuela, a species with which it was originally confused. 
In C. comosus, however, the upper surface of the leaves is softly 
hairy, while in C. Bakeri it is perfectly glabrous. It is probable 
that intermediates between these two species will be found. 
6. Costus LIMA K. Schum.; Engler, Pflanzenreich 44%: 388. 1904 
Dr. Schumann apparently knew C. lima from the type speci- 
men only, which was collected at the following station on the 
Pacific side of Costa Rica: near Punta Arenas, January, 1854, 
Scherzer. The species is frequent however, throughout the 
lowlands in the northern part of Costa Rica, being found also 
on the Atlantic side. The following additional specimens may 
be cited: Buenos Aires, near the continental divide, A. Tonduz 
6659; Livingston on the Reventazon River, Rowlee & Siork 648; 
Siquirres, Rowlee & Stork 1318. 
