1918] SARGENT—QUERCUS 455 
the nut ovate, gradually narrowed and rounded at apex, puberulous, 
2.5-3 cm. long and 2 cm. in diameter, and inclosed for one-third of 
its length in the cup-shaped cup covered with acuminate hoary- 
tomentose scales, those of the upper ranks forming a ciliate marginal 
ring. 
A tree with stout branchlets covered during their first season with rusty 
brown tomentum, becoming gray. and glabrous the following year, and ovate 
acuminate puberulous winter buds. 
On a rocky creek bank at Fredericksburg Junction in the valley of the upper 
Guadalupe River, Kendall County, Texas, EZ. J. mipehtif October 1, 1916 
(no. 10878, type). 
In shape and size the leaves of this tree are intermediate between those 
of its supposed parents; the pubescence on their lower surface is that of Q. stel- 
lata. The fruit in size resembles that of Q. macrocarpa, but the scales of the 
cup are less acuminate than those of that species, and the marginal fringe of the 
cup is only slightly developed. The tomentum of the branchlets is that of 
Q. macrocar pa. 
v Quercus Andrewsii, n. hyb. (Q. macrocarpaXundulata).— 
Leaves oblong-obovate, acute or rounded at apex, rounded at 
base, divided into 7 or 9 narrow acute or rounded lobes by narrow 
sinuses rounded in the bottom and extending sometimes halfway 
to the midrib; at maturity light green and scabrate by the remains 
of clusters of fascicled hairs on the upper surface, paler and floccose 
pubescent on the lower surface, g-12 cm. long and 4.5~6 cm. wide; 
petioles stout, pubescent, 10-12 mm. in length. Flowers and 
spring leaves not seen. Nut ovate, narrowed, rounded and de- 
pressed at apex, covered with short pale pubescence, 2.5 cm. long, 
1.8 cm. in diameter, the cup turbinate with acute hoary-tomentose 
scales thickened on the back, those of the upper ranks abruptly 
narrowed into long slender tips forming a marginal ring. 
A clump of large shrubs spreading by underground stems, with stout pubes- 
cent orange-red branchlets marked by numerous pale lenticels. 
Seiling, Dewey County, Oklahoma, growing with its supposed parents, 
D.M. Andrews. 
The influence of Q. macrocarpa is evident in the lyrate leaves, in the large 
fruit and its cup-scales, and in the color of the branchlets. The dwarf habit, 
the underground stems, and the pubescence on the under surface of the leaves 
show the influence of the other parent. This is one of the most distinct and 
interesting of the hybrid oaks of North America, and I am glad to associate with 
it the name of its discoverer, D. M. ANDREWS, of Boulder, Colorado. 
