172 JOURNAL OF THE WASHINGTON ACADEMY OF SCIENCES VOL. 13, NO. 9 
joined by a long stolon, three single flowering plants of the same, and a 
sterile tuft that is probably Stenotaphrum secundatum (Walt.) Kuntze. 
The flowering plants agree with the description. The apex of several 
of the blades is split. This splitting of the blades is not uncommon in 
Axonopus, the genus to which this species belongs. This species, 
Axonopus fissifolius (Raddi) Chase, is allied to A. compressus (Swartz) 
Beauv. It is much smaller than that, with narrower blades, 3 to 4 
racemes, and smaller spikelets with longer less delicate pubescence. 
The Pisa specimens and those seen in Florence and Delessert are about 
12 em. tall, or less; the one in the British Museum has a culm 18 em. 
tall. I have seen no other collection of this species. 
42. Paspatus curvistacuyus. “In sylvestribus non procul ab 
urbe Rio Janeiro.”” There are two sheets of this, one with a ticket 
with the name in Raddi’s seript and two plants, the other with three 
plants. Both sheets contain two species, one, the left-hand plant on 
the first sheet and the left and middle plants on the second sheet, is 
the same as Paspalum nutans Lam., the type of which was examined 
in the Paris Herbarium. The description was evidently drawn up 
from both species, but two characters given, “glumis calycinis corolla 
brevioribus” (glume and sterile lemma shorter than the fruit), and 
“nodes rooting” apply to the specimens of P. nutans and not to the 
right-hand plant on each sheet. The left-hand plant of the second 
sheet, being the best specimen, is selected as the type. This specimen 
has four racemes in the terminal inflorescence and one on each of two 
branches. It is well matched by Hitchcock 10301, Trinidad, with 
three racemes in the terminal inflorescence. 
The right-hand specimens on each sheet are over-mature single 
plants of Paspalum arenarium Schrad. 
In the Delessert Herbarium a specimen of this collection ‘“E Brasilia, 
Raddi” bears a name that was not published. It agrees with the type. 
The specimen in the Florence Herbarium is P. arenarium. Doell" 
refers Paspalum curvistachyum Raddi to Panicum decumbens Roem. 
& Schult. (Paspalum decumbens Swartz). That is an allied species 
with smaller spikelets in which the first glume is developed. 
43. PASPALUS CORCOVADENSIS. ‘‘Monte Corcovado.” The speci- 
men consists of one entire plant and a second lacking the base. These 
agree perfectly with the description. They are well matched by 
Gardner 138, and Mosén 3512, from Brazil. Trinius” figures a 
different species with shorter broader blades and more numerous and 
11 Mart. Fl. Bras. 2?: 183. 1877. 
12 Gram. Icon. 2: 153. 1829. 
