95 
to 2 lines long, empty glumes oblong-ovate, acute, nearly as long 
as the flowering glumes, which are about 1% lines long, oblong, 
the marginal nerves and base slightly pubescent, otherwise smooth 
or minutely scabrous. Common in the Rocky Mountains, re- 
sembling small forms of P. cesia. Collected by Wolf, Patterson, 
Letterman and others. : 
PANICUM HAVARDI. Culms 5 to 6 feet high, stout, leafy ; 
leaves 1 to 2 feet long, thick, rigid, long acuminate, becoming 
involute, smooth or slightly hairy on the upper side near the 
ligule, which is a conspicuous ring of short hairs; panicle 1% feet 
long, smooth, diffuse, the branches 4 to 7 inches long, singly or 
in twos or threes, I to 2 inches apart, naked for the lower third, 
above numerously subdivided; spikelets 3 lines long; lowest 
glume half as long as spikelet, prominently five to seven-nerved, 
ovate; second glume 3 lines long, prominently nine-nerved, ovate, 
acuminate; third glume (that of the neutral flower) about equal- 
ing the second, five-nerved, its thick palet nearly as long; fourth 
glume (that of the fertile flower) about one-quarter shorter than 
the third; styles 2, ciliate tufted at apex. 
Found by Dr. Havard in the Guadaloupe Mountains of S. W. 
Texas, in 1881, and last season in Chihuahua by Mr. C. G. 
Pringle. I was at first inclined to consider it a variety of P. 
virgatum, but it seems well distinguished by its long, rigid leaves, 
its smoothness and peculiar gray color, by its conspicuous ligule, 
and the remarkably large, smooth spikelets. 
Elongation of the Inflorescence in Liquidambar. 
On page 435 of Master’s Vegetable Teratology, it is stated 
that ‘‘ MM. Clos and De Schénenfeld have recorded the existence 
of a variety of the Sweet Chestnut, Castanea, in which the pistil- 
late catkins were as long and bore nearly as many flowers as the 
staminate. This is stated to be of constant occurrence in some ~ 
localities and to be accompanied by a diminished size of the fruits. 
A similar elongation has been observed in the Walnut, catkins 
of which have been seen bearing thirty to thirty-five large nuts.” 
We have a similar elongation of the pistillate inflorescence to report 
in the case of the Sweet Gum, Liguidambar styracifiua, found at 
New Dorp, Staten Island The cluster is over three inches long, __ 
