147 
ous, 3-nerved, smooth, the second 5-to 7-nerved, a little shorter 
than the third glume, obtuse; third glume rigid, subcoriaceous, 
very dark-brown, finely striate and minutely apiculate, closely en- 
veloping the palea, which is of similar texture. 
Described from No. 1192 Nash, collected on high pine land 
in the vicinity of Eustis, Lake county, Florida, July, 1894. 
Explanation of Plate 266. 
Fig. a. A portion of the ¢ spikelet. 
Fig. b, A single floret with a portion of the rachilla of the same. 
Fig. c. A 9 spikelet partly enclosed within the sheath of the subtending leaf. 
Fig. d. Lower part of the female spikelet including one floret, the upper part of 
which is free from the rachilla (d/). 
Fig. e. A longitudinal section through a portion of d showing the base of the 
outside of the flowering glume (e’), the prophyllum (h) to the branch which supports 
the pistil and a glume (i) which encloses a second but imperfectly formed pistil. This 
is raised a little above the fully developed pistil, the plumose stigmas of which protrude 
from the small opening at the apex of the floret. 
New or noteworthy American Grasses.—lV, 
By Gro. V. NAsH. 
PANICUM CONSANGUINEUM Kunth, Enum, Pl. 1: 106. 1833. 
Panicum villosum EN. Bot. S.C. & Ga. 1: 124. 1817. Not 
Lamarck, 1791. 
Dr. John K. Small collected in Georgia, in 1895, a Panicum 
which well accords with the description given by Elliott of his P. 
villosum ; in fact, it agrees so closely that I have little hesitation in 
referring it to that species, especially in view of the fact that it 
comes from a section of the country with the flora of which Mr. 
Elliott was familiar. Dr. Small secured the early and simple state 
of this grass in the Ocmulgee River swamp, below Macon, in May ; 
the later and much-branched form was collected by him at Darien 
Junction, McIntosh county, in June. 
The name vé/osum had been previously applied by pare to 
an entirely different plant, so Elliott’s name becomes a homonym. — 
The oldest available name, so far as I have been able to ascertain, 
is the P. consanguineum of Kunth, who founded his species on the 
P. villosum of Elliott. A number of different forms have been re- - a : 
ferred from time to time by various, muthors to this apecies, es ‘. 6 
