78 
United States, B. Junarioides, Gray, of Texas and Mexico. 
In most of the East India species the nervation is more 
crowded than in the fossil leaves before us, each nerve having 
three, and sometimes four lateral nerves, the medial nerve how- 
ever, being quite the same. In several oriental species, and all 
those of the New World, the nervation is simpler, and essentially 
like that of the fossil. In the Texan species the leaves are gen- 
erally divided to the base, and the medial nerve is therefore obso- 
lete; the lateral nervation is, however, precisely that of our fossil. 
As the depth of the sinus is a variable character, differing greatly 
in the leaves of the same tree, it is quite possible that our Baw- 
hinia lunarioides is only a dwarfed and slightly modified de- 
scendant of the Cretaceous species. 
EXPLANATION OF PLATE LVI. 
Figs. 1 and 2. Aaguhinia tomentosa. India. 
Fig. 3. . porrecta. Cuba. 
Fig. 4. B. parvifolia. India. 
Fig. 5. &B. cretacea. N. 
Dendrological Notes. 
BY C.. 5. SARGENT. 
The late Mr. S. B. Buckley, many years ago published (Am. 
Journ. Sci., 2d Ser., Vol. xxvii., March, 1859, p. 289) an inter- 
esting account of the forests and trees of the Big Smoky Moun- 
tain region of North Carolina and Tennessee. I am glad to be 
able to bear witness to the accuracy of Mr. Buckley’s observations 
recorded in this paper, which has only recently become known 
tome. Mr. Buckley’s interesting discovery of Quercus Leana 
on the banks of the Tennessee River near Franklin, in Macon 
County, seems to have passed unnoticed from that day to this. 
His determination of this plant was doubtless correct, however, 
for last September I found Q. Leana on one of the main forks of 
the Tennessee—the Tuckaseego, at Charleston, in Swaine 
County—where a single small tree growing with Q. zmbricaria 
was seen. Quercus Leana is now known from the neighborhood 
of Washington to Missouri, and has been found in several remote 
and isolated localities, It is probably of recent hybrid origin. 
