118 PENTANDRIA. MONOGYNIA. 
Srecies. 1. E. Nyctelea. 2. *ambigua. Decumbent, 
and branching; stem plabrous, somewhat glaucous; leaves 
hirsute, lyrate-pinnatifid, subsessile’ segments sublangeo- 
late, angularly toothed or lobed; racemes opposite the 
leaves, both lateral and terminal; flowers small, scarcely 
longer than the calix, segments emarginate. 
Annual. Stem spreading, 4to 6 inches high. Calix 5- 
parted, segments lanceolate-ovate, persistent. Corolla 
subcampanulate, short, 5-cleft, laminz short, roundish- 
oval, emarginate, tube cylindric, upper part angular, with 
10 nectariferous pores at its base. Stamina from the base 
of the tube; filaments short, not exserted; anthers cordate. 
Style very short, bifid. Ovarium conic-ovoid. Capsule 
. compressed, rounded-oval, 2-valved, 4-cclled, 4-seeded; 
valves septiferous, dissepiments, intersecting, crossing 
éach valve in two directions. Seed roundish, punctate. 
Peduncles reflected, when in fruit. } 
In alluvial soils on the banks of the Missouri; common; 
flowering in April and May. : 3 
A North American genus. 
180. ANDROSACE, L, 
Flowers in an involucrate umbell.—Calix §-_ 
cleft, persistent. Corolla salverform, 5-lobeds 
tube ovate, orifice glandulous. Capsule I-celled, 
_ ovate-globose, 5-valved, many-seeded.. , 
ee 
~ ¥ 
=~». Annual or perennial. Leaves radical; scapes numerous; 
_~o galix often angular; flowers usually small, and white. 
_ Species. 1. 4. occidentalis. Annual. Leaves ovate, 
smooth, rather thick, and entire. Scapes solitary, or se- 
veral from the same root, 1 to 3 inches high, minutely pu- _ 
bescent. Leaves of the involucrum oval, pedicells long, 
1-flowered. Calix smooth, acute, angular, membranace- 
ous betwixt the segments. Corolla a little shorter than 
the calix, salverform, white, orifice open, tube ovate, seg- 
_ ™ents oblong, obinse. Capsule globular, 1-celled, 5-valy- 
ree Seeds numerous, angular. 
On dry and elevated plains, from the Maha village to 
* __ the mountains, near the river Missouri; flowering in April. 
of Probably a Mere variety of 4. elongata, the leaves are 
e ra Praag the umbell of the same length both in flower 
Se _ The genus Androsace is almost exclusively confined to 
Europe, and most of the species are alpine; there is at the 
same time, out of 12 spec 8, 1 in Siberia, 1 in Cappado- 
Ks Se 
