186 KEY AND FLORA 
shorter than the calyx. Stamens 5, perigynous, not protrud- 
ing from the tube of the corolla. Capsule 5-valved, few—many- 
seeded. 
1. A. occidentalis Pursh. Annual, smooth or nearly so. Scapes 
usually clustered, 1-3 in. high, erect or ascending. Lobes of the 
calyx becoming leafy. Corolla white, shorter than the calyx. In dry 
soil W. 
Il. LYSIMACHIA L. 
Perennials, with opposite or whorled entire leaves, which 
are often dotted. Calyx 5-6-parted. Corolla wheel-shaped, 
with its divisions commonly nearly separate. Stamens gener- 
ally somewhat monadelphous at the base. 
B. Fl. species 4 (Naumburgia). 
1. L. quadrifolia L. Four-Leavep Loosgstrire. Stem erect and 
simple, 1-2 ft. high, hairy. Leaves whorled, most frequently in fours, 
broadly lanceolate. Flowers small, axillary, and solitary, on long and 
slender peduncles. Damp or safidy soil. 
2. L. terrestris BSP. Buta-Bearine Loosrstrire. Stems 1-2 ft. 
high, finally branching, frequently producing bulblets in the leaf 
axils after flowering. Leaves abundant, generally opposite, narrowly 
lanceolate. Flowers small, pediceled, in a long, terminal raceme. 
Low or swampy ground. 
3. L. Nummularia L. Monrywort. Stems creeping, smooth. 
Leaves small, round or nearly so. Flowers solitary in the leaf axils, 
yellow, 1-1 in. in diameter. Cultivated and escaping into moist 
ground. Introduced from Europe. 
4. L. thyrsiflora L. Turrep Loosrstrire. Stem simple, erect, 
1-2 ft. high. Leaves all opposite and lanceolate except the lower 
ones. Racemes spike-like, 1 in. or less long, borne in the leaf axils 
near the middle of the stem. Flowers small, light yellow with black 
spots. In swamps. 
IV. STEIRONEMA Raf. 
Perennial herbs. Leaves opposite or whorled, simple, entire. 
Flowers yellow, axillary or racemose, on slender peduncles. 
Calyx tube 5-parted, persistent. Corolla 5-parted, wheel-shaped, 
tube very short or none, the lobes denticulate at the apex, and 
in the bud each one inclosing a stamen. Stamens 5, distinct 
or slightly united at the base; sterile rudiments often alter- 
nating with them. Ovary globose; style slender. Fruit a glo- 
bose, 5-valved, few- or many-seeded capsule,* 
