1918] SARGENT—QUERCUS 433 
lected on the banks of the Blackwater River, near Zumi, Isle of Wight County, 
by A. Rehder in August 1908. I have seen specimens from New Berne, North 
Carolina, where it grows in low woods and where it had been planted as a street 
tree, from Darlington and Bluffton, South Carolina, and from the banks of the 
Apalachicola River at Chattahoochee, Florida. 
/QUERCUS LAURIFOLIA var. tridentata, n. var.—Differing from 
the type in its 3-lobed leaves. Leaves oblong-obovate to oblong, 
gradually narrowed and acute or rounded at base, 3-lobed at apex, 
often slightly repand below, the terminal lobe acuminate and much 
larger than the lateral lobes; at maturity thick, glabrous, dark 
green and lustrous above, paler below, 6-12 cm. long and 2-4 cm. 
wide, with prominent yellow midribs and primary veins; petioles 
stout, glabrous, 5-10 mm. in length. Spring leaves and flowers not 
seen. Fruit as in the type. A large tree with reddish glabrous 
branchlets, becoming light gray in their second year, and ovate 
acute puberulous winter buds. 
A single tree in a row of planted trees in one of the streets of Orlando, 
Orange County, Florida, 7. G. Harbison, December 5, 1917 (no. 26). Three- 
lobed leaves occasionally occur on vigorous shoots of Q. Jaurifolia, but on this 
tree all the leaves are 3-lobed and are rather larger than those of the common 
form of the laurel oak. 
As figured by Micuaux, the cup of the fruit of Q. /aurifolia is shallow 
cup-shaped, with rather large and apparently not very closely appressed 
scales; more often the cup is saucer-shaped and only slightly rounded on the 
bottom with small closely appressed slightly pubescent scales. 
Q. laurifolia, which is one of the most magnificent of the American oaks, 
is chiefly confined to the coast region, where it is found from Virginia 
to southern Florida and along the Gulf coast to Mississippi. It is common in 
the interior of the Florida peninsula, and is not rare in the southern counties 
of Georgia. From further inland I have seen specimens from Darlington, 
Darlington County, South Carolina, from the neighborhood of Augusta, 
Richmond County, Georgia, and from Tuskegee, Macon County, Alabama, 
but these may have been from planted trees, as the laurel oak has long been a 
popular street and shade tree in the southeastern states. The laurel oak is not 
evergreen. Late in the winter the leaves begin gradually to turn yellow and . 
then brown, and when the buds begin to swell at the appearance of spring 
drop almost simultaneously, leaving the branches bare for a week or two, 
when they are again covered with unfolding leaves. 
QUERCUS CINEREA Michx.—The influence of soil conditions on 
the growth of trees is well shown by this oak. On dry and sterile 
