HITCHCOCK—-GRASSES OF CUBA. 185 
present paper the new species published in Sauvalle’s article are 
credited to Wright. The original set upon which Sauvalle’s list is 
based is at the Gray Herbarium, and a fairly complete duplicate set 
is in the Sauvalle Herbarium. 
The sets of Wright’s plants were made up at the Gray Herbarium 
and given herbarium distribution numbers. Each number included 
such collections as were thought to be of the same species. Thus it 
often occurs.that different specimens of the same distribution num- 
ber may have been collected in different localities or may even belong 
to different species. The data found upon the field labels in various 
herbaria are mentioned under each species in the present list. There 
is also appended a list of the species of grasses included in Sauvalle’s 
Flora Cubana, with references to their identification, and a list of the 
Wright numbers in sequence with their identification. 
The plan followed in the present paper is to give under specimens 
cited a list of the specimens found in the herbarium of the Estacién 
Central Agronémica, including the Sauvalle Herbarium, and in the 
National Herbarium, without statement as to the herbarium in which 
they are deposited. To these are added specimens found in the Gray 
Herbarium which do not occur in the herbaria just mentioned, and 
finally, specimens in the Herbarium of the New York Botanical 
Garden (Herb. N. Y. Bot. Gard.), including the herbarium of Colum- 
bia University, of which the Torrey Herbarium forms a part, which 
are not found in the others mentioned. The specimens collected by 
the staff of the botanical department of the Cuba Experiment Station 
are numbered in a single series and are indicated in this list by the 
letters HC (Herbarium Cubae). The data for the Wright specimens, 
given in the paragraph devoted to the enumeration of specimens, are 
understood to be found with the specimens in the Sauvalle Her- 
barium. Additional data, found with specimens in other herbaria, 
are quoted in the succeeding paragraph devoted to notes. 
Grisebach enumerated 154 species of grasses in Ins catalogue. 
Sauvalle’s Flora Cubana includes 170 species. The present list 
includes 228 species or well-marked subspecies. | 
KEY TO THE GENERA.’ 
Serres PANICEAE.—Spikelets 1-flowered, rarely 2-flowered; when 2-flowered the 
terminal floret perfect, the lower staminate or neutral (except in Isachne), no apparent 
tinternode between them; rachilla articulated below the glumes, the spikelets falling 
from the pedicels entire, singly, in groups, or together with joints of an articulate 
rachis; spikelets not laterally compressed (except in Lithachne). 
Lemma and palea (the latter sometimes wanting in Andropogoneae) hyaline; glumes 
more or less indurated, the first largest; sterile lemma like fertile lemma in texture 
(except in Alloteropsis). 
aJn this key the tribal characters are given with reference to the Cuban genera 
only, and in some cases would not hold good for the entire tribe. 
