276 BOTANICAL GAZETTE [ara 
between the two united upper lobes shallow: pods large, linear, 8-10" 
long, about 7"" wide, finely pubescent when young, obscurely so when 
mature, from nearly straight and erect when young to divaricate and 
slightly curved when mature, 10-15-seeded. 
It is found near streams, preferring the moist, rich soil among the open 
underbrush. Type specimens in Herb. Univ. of Wyo., no. 3424 by Elias 
Nelson, Pole creek, July 22, 1897; and no. 3903 by the writer, Johnson's 
ranch, Big Laramie river, August 8, 1897. 
(Thermopsis arenosa, n. sp.— Smaller in every way: stems from the 
persistent branched bases more numerous, branching and habit sim 
ilar, 3-4" high: leaflets proportionately wider, from oblong or oblan- 
ceolate to obovate, 3—4°™ long, 1-2.5°" wide; stipules longer than the 
petioles, broad, from ovate to suborbicular: fruiting racemes shorter : 
pods inclined to be divaricate from the first, shorter, at maturity col 
stricted between the fewer large seeds. 
These two species are very different in seasonal development and habitat. 
This last is very abundant in the Laramie hills in dry, open, sandy, oF S08) 
draws and ravines. Heretofore confused with 7. rhombifolia from which it 
differs in its larger leaflets, longer stipules, its strictly terminal raceme and 
its curved, divergent, loment-like pod. 
Type specimen in Herb. Univ. of Wyo., no. 3182, Laramie ott 
June 16, 1897; fruit from the same locality July 17; 1897. _ 
Nos. 122 and 1240.—-AveN NELson, Zhe University of Wyoming: 
EXPLANATION OF PLATE XVIII. . 
Fic. 1. Thermopsis montana Nutt. Fie. 2. 7. rhombifolia R 
T. divaricarpa Aven N. Fic. 4. 7. arenosa Aven N. 
ie FS 
9 
STERN 
NOTES ON THE BOTANY OF THE SOUTHEASTE 
STATES. I. | 
: : syndicated 
region, or of too restricted geographical range 4° — a roposed 
literature on the subject. In the present paper one ee ce 
