567 
vexillum nearly or quite 5 mm. long, 4.5-5 mm. wide ; wings nearly 
3.5 mm. long, nearly 2mm. wide, obovate, much narrowed towards 
base, tooth on vexillar side near base nearly 1 mm. long, oblong, 
very obtuse, straight ; keel about equalling the wings; lower seg- 
ment of loment very small, infertile; upper segment 3-3.5 mm. 
long (excluding beak), nearly to quite 3 mm. wide, inequilaterally 
obovoid, somewhat compressed laterally, strongly gibbous on ven- 
tral face, curved toward base and apex on dorsal face, pubescent 
(rather sparsely when mature) with short curved white hairs, tri- 
costate on both lateral faces (less often bicostate, or tricostate on 
one face and bicostate on the other), the cross-veins few, reticu- 
lated, all strong and dark-green; beak .5-.7 mm. long, stout, 
strongly hooked (sometimes twice hooked in shepherd’s crook 
fashion), almost central on the summit of the loment; seeds not 
seen, 
In groves of Pinus rigida Mill, on the banks of the French 
Broad River near Wolf Creek, growing in dry, sandy soil, accom- 
panied by Lechea racemulosa, Meibomia vinidifiora, etc.; collected 
by the writer in August, 1894, and again September 1, 1897 (no. 
674). 
Belongs to the section Zustylosanthes Vog., and is most nearly 
related to S. diffora (L.) B.S.P., from which it is readily distin- 
guished, however, by its more slender, more decumbent culms, 
smaller leaves with shorter and comparatively broader leaflets, 
more conspicuously veined calyx with longer tube, vexillum almost 
always longer than broad (in S. difora almost always broader than 
long), and longer, broader, obtuse and straight basal tooth to the 
keel petals. In S. J:fora this tooth is about one-half as long, 
slender, acute or acutish and often somewhat uncinate. The best 
characters, however, are afforded by the prophyllum and the 
loment. In S. djfora some thirty specimens examined showed a 
prophyllum always perfectly entire, while in S. 7#paria the deep 
lobing of that organ is equally constant. In S. dora the upper 
segment of the loment is as long as in S. riparia, but it is only 
about 2.5 mm. wide, and has an irregularly triangular outline in 
strong contrast to the semi-orbicular outline of the segment 
in S. riparia. Moreover, in S. diflora the segment is much more 
gibbous on the ventral face, but is straight on the dorsal face, 
thus throwing the beak quite to the dorsal edge of the summit. 
The beak is usually considerably shorter in S. bifora and less 
