314 Rhus glabra ab Edward L. Grene revisa 
one and all the foregoing by- its narrow and crowded dark green and 
rather rigid leaflets. 
7. Rhus pulchella E. L. Greene. l. c., p. 182. 
Branches not stout, angular, glaucous, minutely lenticellate; leaves 
not large, about 2 dm long, rather long-petioled, of a somewhat glauces- 
cent green above, very glaucous beneath; leaflets 13—17, small, sessile, 
drooping on the rachis rather than spreading away from it on the same 
plane, oblong-lanceolate, 5—6 em long, slenderly acuminate and some- 
what irregularly and coarsely serrate-toothed below the acumination, as 
well as more lightly and evenly serrate in the middle; panicle pyram- 
idal, small, about 8 cm long, slender-peduncled, somewhat recurved or 
drooping. 
Known only from Yellow River, near McGuire's Mill, Guinnett County, 
Georgia, July 11, 1893, John K. Small; type in National Museum. A 
small and very graceful pcos recalling some of the far-southwestern 
forms found in Arizona, 
8. Rhus ludoviciana E. L. Greene, l. c., p. 183. 
Shrub with quite slender branches, the foliage not large, ascending, 
glabrous except as to the hairy line of the rachis, about 2,5 dm long; 
leaflets 11—15, opposite, of thin texture even in full maturity, dull green 
above, moderately glaucous beneath, 5—8 cm long, attenuate, acute 
rather than acuminate, evenly serrate, the serratures 12—16 on each 
margin; panicle small, pyramidal, 8 cm long, 4 em broad toward the 
base; drupelets obliquely orbicular, of a dark red-purple and not strongly 
pubescent, 
The type specimen is in my own herbarium, from along the seaboard 
in southwestern Louisiana, at Cotes Blanches, October 10, 1884, by 
A. B. Langlois. A strongly-marked, probably small species, said to 
form low thickets in a peculiar maritime region that is still almost un 
known botanically. 
If the Rhus angustifolia Bauhin, believed to have come from the coast 
of Brazil, was derived from some North American coast by that voyager 
of nearly or quite three centuries ago, it would be easy to fancy that 
the specimen in Bursers herbarium, which became Bauhin’s type, was 
from some shore of the Gulf of Mexico, and even may have been identical 
with what is here described as R. ludoviciana, and which is the only 
known maritime ally of R. glabra. And that which may elevate this 
fancy almost or quite to the rank of a probability is the at least higly 
interesting coincidence that my type specimens of R. ludoviciana bear the 
only leaves and leaflets known to me that answer to Bauhin's description 
of those of Bursers specimen. He gave the number of the leaflets, their 
form and dimensions, the serrated character of their margin, and the 
narrowly attenuate apex, not omitting mention of the darker green upper 
and paler lower faces of the leaflets. 
This, as I have said before under R. glabra, is the earliest element, 
