154 
this and hardly 4 an inch broad. The relative difference between 
length and breadth is very marked. 
1092. “ASCLEPIAS ACERATOIDES Nn. sp. 
-Perennial. Stems decumbent or erect, dark purple, simple or 
branched, terete, striate and puberulent; leaves smooth on both 
sides, those of the stem nearly orbicular or very broadly oblong, 
about 5 cm. long, 3.5-4 cm. broad, emarginate, rounded at base, 
on petioles about 8 mm. long; those of the branches oblong, 3-3-5 
cm. long, 1-2 cm. broad, apiculate, more or less acute at base, on 
petioles 2-4 mm. long; umbels borne in the axils of the upper 
leaves, 20-50-flowered; peduncles puberulent, 2-3 cm. long; 
pedicels slender, puberulent, about 1.5 cm. long; sepals greenish, 
lanceolate, reflexed, acute, 2.5 cm. long; petals greenish, ob- 
long-lanceolate, reflexed, obtuse, 6 mm. long, 2 mm. wide; lobes 
of the crown white with a greenish keel, flattened, semi-lanceo- 
late, 5 mm. long, acute at each end, short-stalked; horn protrud- 
ing from the middle of the lobe, horizontal, resting on the column, 
tip more or less ascending ; column sessile, 2 mm. high ; pod erect 
or ascending, puberulent, lanceolate, obtusely acuminate, about 8 
cm. long, 1.5 cm. wide, on a twisted and reflexed thickened 
pedicel. 
This. plant very much resembles an Acerates. It grows ex- 
clusively in the “scrub,” flowering late in June and through July. 
1715. Hydrolea corymbosa Fl. 
Occurs in swamps and is very scarce. I searched for it 
carefully, but failed to secure more than a few specimens. It 
grows in the tall grass and might be easily overlooked. 
609. Convolvulus repens L? : 
This differs from the ordinary plant in having pure white 
flowers, the lobes of the leaves decidedly divaricate-spreading, the 
pubescence stronger, and in a distinct climbing habit. It may be 
only an extreme form. 
Zz 
770.” BREWERIA VILLOSA Nn. sp. 
_ Whole plant villous-pubescent. Stems several from a peren- 
nial root, simple or much branched, trailing; leaves oblong to 
oblong-ovate, 2.5-7 cm. long, 7-20 mm. broad, obtuse, apiculate, 
rounded at base, on petioles 2-8 mm. long; peduncles equalling 
or exceeding the leaves, 1-7-flowered; bracts shorter than the 
pedicels; sepals oblong to ovate-lanceolate, 8-11 mm. long, 3-4 
mm. broad, acuminate, villous; corolla 1.5-2 cm. long, white; 
filaments filiform-subulate, two-thirds as long as corolla, adnate 
and villous for two-fifths their length, lower part of free portion 
