Rhus glabra ab Edward L. Greene revisa. 311 
LXXXH. Rhus glabra ab Edward L. Greene revisa et 
in species novas atque affines divisa. 
(Ex: Proc. Washington Ac. Sci., VIII [1906], pp. 167—196.)- 
1. Rhus oreophila E. L. Greene, l. c., p. 177. 
Shrub 2—3 m high; leaves 3—4 dm long, the petiole 6—8 cm long; 
leaflets 19—27, closely approximate, not of the largest, 7—9 cm long, 
2,5 cm wide, narrowly oblong-lanceolate, sessile, rather slenderly acuminate, 
lightly and almost obsoletely serrate, the serratures 10—12 on each side, 
texture firm, almost subcoriaceous, lower face whitish with a dense bloom, 
upper face by no means deep or dark green, of a rugulose-roughened 
rather than smooth surface; fruiting panicle large and much elongated, 
oblong-fusiform, 18—28 cm long, only about 5 cm wide, very compact, 
the drupelets subglobose, nearly 5 mm in diameter, 
Mountain districts of Maryland, Virginia, the Carolinas and 
eastern Tennessee; not in the lower hill country of the Potomac 
Valley outside the mountains, nor at all northward. The type specimen 
in the National Herbarium is from Chapel Hill, North Carolina, by W. 
W. Ashe. So does another, from the mountains of Cocke County, Tenn. 
by Mr. Thos, H. Kearney, September 14, 1897. Yet another U.S, Her- 
barium specimen, in good foliage but young fruit, is from near Luray, 
Va., by Mr. and Mrs. Steele, August 30, 1901. 
The species is in contrast with R. glabra by smaller leaflets, with 
denser bloom beneath, and a longer, narrower thyrsus of larger and more 
closely compacted drupelets. 
It may not perhaps be determinable to a certainty that the preceding 
rather than this, was grown in London, and formed the type of Dillenius’ 
figure of leaves and staminate panicle. But Banister's field, and probably 
that of Catesby also, by both of whom seeds were sent to England, was 
the lower country, where only what I have here called Rhus glabra is 
found. 
2. Rhus auriculata E. L. Greene, |. c., p. 178. 
More slender than R. glabra, all the parts somewhat smaller. the 
fruiting panicles especially only about one-third as large; leaves 2,5 to 
3,5 dm long; leaflets about 19, approximate, often alternate, 7—10 cm 
long, never more than 2 cm in width, often less, of linear-lanceolate 
outline, the apex caudately long-attenuate, the sessile base showing de- 
finite though small auricles, the serratures light but rather close, 14—18 
on a side, texture subcoriaceous, the upper face light green, transversely 
rugose, the somewhat sunken veins correspondingly prominent on the 
very glaucous lower face; fruiting panicles oblong or slightly verging 
toward the pyramidal, 10—13 cm high: drupelets comparatively few, large. 
