266 NOTES ON TREES AND SHRUBS 
CASTANEA ALNIFOLIA Nutt. 
The western recorded limit of this dwarf shrub with its sub- 
terraneous stems is Louisiana.* It was collected by the writer 
in Newton County, Texas, during October, 1921, under the 
same conditions as it grows further east and not exceeding 18 
inches in height. C. alnifolia pubescens Nutt. has all of the leaves 
pubescent beneath. 
v Castanea floridana (Sarg.) comb nov. 
Castanea alnifolia floridana Sarg. Bot. Gaz. 67: 242. 1919. 
I have not seen authentic specimens of the tree which Dr. 
Sargent has recently described and which he separates from the 
typical C. alnifolia by its arborescent form, but it is believed 
that material collected near Charleston, South Carolina, in 1915 
represents it; and, if so, the differences of smaller fruit (which 
is more densely hispid), somewhat larger leaves with about two 
more pairs of lateral veins, and entirely different habit of growth 
justify specific rank. 
x CASTANEA NEGLECTA Dode, Bull. Soc. Dendr. France 8: 155. 
May, 1908. C. pumila x C. dentata 
According to the description this hybrid is in general like C. 
pumila. It differs, however, in having larger and less densely 
pubescent leaves, a larger involucre with irregular spines, longer 
aments, and a single larger nut. The distribution is given as 
extending from Maryland to North Carolina. As a rule hybrids 
between C. pumila and C. dentata have the nuts in pairs, although 
this is not necessarily the case. 
M. Dode has been kind enough to furnish the writer with a 
list of the specimens at the Museum of Paris, which he refers to C. 
neglecta. Of the seven specimens listed, the locations of five are 
well within the ranges of both C. pumila and C. dentata. These 
are: Small & Heller 152, and their collection of June 22, 1891, 
both from Blowing Rock, North Carolina; Pearson, Fairfax 
County, Virginia, 1844; Green, Maryland, 1839; Bonpland, 
Washington, D. C. Since the states only are given for the other 
two (Gibbs, South Carolina, and Vasey, Alabama, 1878), it is 
not possible to determine this. 
* Small, Flora S. E. U. S. Ed. 2, 348. 
