MONADELPHIA FOLYANDRIA. 
161 
4. Spino sa. 
Branches expand- 
ing, with the axils 
somewhat spiny ; 
leaves cordate ovate, 
toothed ; peduncles 
solitary, axillary; sti- 
pules setaceous, long- 
er than the peduncles; 
capsules two horned. 
Sp. pi. S. p. 736 Walt. p. 176. Mich. 2. p. 43. Pursh 2. p. 452. 
Root annual ? Stem 1 — 2 feet high, branching, pubescent. Leaves 
alternate, ovate, very obtuse or cordate at base, coarsely serrate, pubes- 
cent, particularly on the under surface. Petioles about an inch long. 
Stipules setaceous, erect. Flowers axillary, solitary. Peduncles 1 — 2 
lines long. Calyx angled, pubescent. Tube short ; border deeply 5- 
cleft. Petals obovate, yellow, scarcely longer than the calyx. Stamini * 
ferous column about half as long as the corolla. Style longer than the 
stamens, 5-cleft. Capsules 5, with 2 erect beaks, hairy on the angles, 
united in an ovate head. 
I have seen nothing in this plant, as growing with us or in the speci- 
mens that have been sent me, which could authorise the trivial name of 
Spinosa. 
Grows in sandy soils. 
Flowers May — July, 
S. caule patulo, ax- 
iilis subspinosis ; foliis 
cordato-ovatis, den- 
tatis ; pedunculis so- 
litariis,axillaribus; sti- 
pulis setaceis, pedun- 
culo longioribus; cap- 
sulis birostratis. 
5. Crispa. 
S. foliis oblongo- 
cordatis, acuminatis, 
crenatis, summis ses- 
silibus ; pedunculis so- 
litariis, petiolo longio- 
ribus, fructiferis de- 
flexis ; capsulis infla- 
tes, muticis, undulato- 
crispis. 
Leaves oblong, cor- 
date, acuminate, cre- 
nate, the upper ones 
sessile ; peduncles so- 
litary, -tenger than the 
petiole, deflected when 
in fruit ; capsules in- 
flated, unawned, wav- 
ed and curled. 
Sp. pi. 3. p. 74 7. Pursh 2. p. 453. 
VOL. II. 
X 
