154 
Although most American botanists have been content to fh 
low DeCandolle in holding the American tree to be only a variety, 
it is perhaps fully evident to many of those who have observed 
the living trees and herbarium specimens closely that they are 
wonderfully distinct in general aspect, in the habit and form of 
the leaves, and the size, form and taste of the fruit. The leaves 
of the European tree are noticeably more erect than in the 
American. The latter has its leaves mostly pointed at the base ; 
while in the type they are chiefly rounded or occasionally with a 
heart-shaped base; moreover, as observed by DeCandolle, the 
European tree has a peculiar stellate tomentum on the under sur- 
face, present at least during early maturity, and in some instances 
much later in the season ; acharacter which I believe is not found 
in the American tree. The much smaller, sweeter, and some- 
what oily fruit of our tree is also in contrast with the three to 
four times larger and somewhat acerb fruit of the wild European 
plant. 
Employing, therefore, the earliest name identifiable with our 
Chestnut, I would propose that it be called Castanea dentata 
(Marsh.)= Fagus Castanea’ dentata, Marshall (1785)=C. vesem 
Geert. var. Americana, Michx. f. (1810)=C. vulgaris, Lam., vat. 
Americana, A. DC. (1864) C. sativa, Mill., var. Americana, Sarg. 
(1889.) 
GEO. B. SUDWORTH. 
Forestry Division, United States Department of Agriculture, 
Washington, D. C, 
Stipa Richardsonii, Link, and Stipa Richardsonii, Gray. 
By F, LAaMSon-ScrIBNER. 
(PLATE CXXVII). 
In the second edition of the Manual, Dr. Gray described 4 
grass under Stipa Richardsonii, Link, and this has been followed 
in all the later editions and in Coulter’s Manual of the Rocky 
Mountain Flora. Iam convinced, however, that Gray’s plant S 
entirely distinct from Link’s, and proposed in Macoun’s Catalogue 
of Canadian Plants (Vol. v., p. 390) that it be named S. Macount, 
my first specimens having been received from Prof. John 
Macoun, the well-known Canadian botanist. The true S#/4 
