CONTRIBUTIONS FROM THE GRAY HERBARIUM OF 
HARVARD UNIVERSITY. 
New Series. — No. XXV. 
NEW AND OTHERWISE NOTEWORTHY ANGIOSPERMS 
FROM MEXICO AND CENTRAL AMERICA. 
By J. M. GREENMAN. 
Presented May 13, 1903, by B. L. Robinson. 
THE descriptions and notes in the present paper are the result of the 
study of several series of Mexican and Central American plants, chiefly 
from the recent collections of Cyrus Guernsey Pringle, Dr. Edward 
Palmer, Dr. Joseph Nelson Rose, Edward William Nelson, Sefiors 
Cassiano Conzatti and Valentin Gonzalez, C. H. T. Townsend and C. M. 
Barber, E. W. D. Holway, Captain John Donnell Smith, Henri Pittier, 
and Adolfo Tonduz. 
The herbarium in which the types and other mentioned specimens 
occur is indicated immediately after the citation of the numbered speci- 
men; and the abbreviations for the different herbaria are as follows: 
hb. Gr. (Gray Herbarium), hb. U. S. Nat. Mus. (Herbarium of the 
United States National Museum), hb. J. D. S. (Herbarium of John 
Donnell Smith), hb. Inst. Phys.-Geog. Cost. Ri. (Herbarium of the 
National Physico-Geographical Institute of Costa Rica). For the most 
part the species represent the Metachlamydee, especially the Composite - 
although a few Archichlamydee, as well as Monocotyledonee, are herein 
described. : 
Rhynchospora Pringlei. Pale green: culms triangular, 1 m. or 
more high: stem-leaves remote ; sheath slightly inflated, 5 to 7 cm. long ; 
blade 2 to 4.5 dm. long, 8 to 10 mm. broad, hispidulous on the margins and 
along the midrib beneath : inflorescence cymose-paniculate ; the terminal 
cymule subsessile or short pedunculate, the lateral on long slender pedan- 
cles 4 to 10 em. in length; bracts lance-attenuate; scales of the spikelet 
broadly ovate, l-nerved, terminated by @ short awn, brown or somewhat 
