283 
PRIMTJLACE.32. (PRIMROSE FAMILY.) 
1. Ij. Stlicta, Ait. (Upright Loosestrife.) Smooth, at 
length branched, very leafy; leaves opposite or rarely alternate, lance¬ 
olate, acute at each end; flowers on slender pedicels in a long whorled 
raceme which is leafy at the base; ovules 12-18; seeds only 5.— 
Low grounds, common. July. — Stems l°-2° high, often bearing 
oblong bulblets in the axils; raceme 5'-10' long. 
2. quadrifolia, L. (Four-leaved Loosestrife.) Some¬ 
what hairy; stem simple; leaves whorled in fours or fives (rarely in 
threes or sixes) ovate-lanceolate > flowers on capillary peduncles from 
the axils of the leaves ; ovules only 5. — Moist or sandy soil, common. 
June. — About a foot high. Peduncles more than an inch long, rath¬ 
er shorter than the leaves. 
§ 2. Steironema, Raf. — Leaves opposite , not dotted , mostly ciliate at 
the base: flowers on slender peduncles from the axils of the upper 
leaves : corolla light yellow , not streaked or dotted , the lobes ovate , 
pointed , with undulate margins: filaments nearly equal , scarcely 
monadelphous , with the rudiments of a sterile series interposed at the 
base in the form of slender teeth or processes: anthers linear , at length 
curved: pod 5 - 10-valved, 10 - 20 -seeded. 
3. 1j. ciliata, L. (Hairy-stalked Loosestrife.) Leaves 
lanceolate-ovate , tapering to an acute point, rounded or heart-shaped at 
the base , all on distinct petioles fringed with hairs; corolla longer than 
the calyx. — Low ground and thickets, common. July. — Leaves 
3'-6', the hairy petioles jp -2 ; , in length. 
4. L,. lanceolata, Walt. (Lance-leaved Loosestrife.) 
Leaves lanceolate , acute, narrowed at the base into a short and margin¬ 
ed petiole fringed with hairs, or the upper nearly sessile and linear, 
the lowest oblong or spatulate; corolla rather longer than the calyx. 
— Var. 1. hVbrida has the leaves varying from lanceolate to nearly 
oblong. Var. 2. heterophylla, with the leaves narrow, sometimes 
nearly linear and acute at each end. — Swamps, Maine to Penn, and 
Michigan. July. — Flowers and fruit as in L. ciliata. 
5. L,. ailgustifolia, Lam. (Narrow-leaved Loosestrife.) 
Leaves narrowly linear , elongated, sessile , sparingly hairy at the base , 
corolla longer than the calyx. — Wet river-banks, on limestone, tails 
of Niagara, Ohio and Wisconsin. Aug. — The northern plant is the 
var. REVoLbTA (L. revoluta, Autf.), which has very smooth and shin¬ 
ing obtusish leaves, with re volute margins. Flowers large and showy. 
5. NAUMBUBOIA, Mcencb. Tufted Loosestrife. 
Calyx 6- (5 - 7-) parted. Corolla 6- (5 - 7-) parted almost or 
quite to the base ; the spreading divisions lance-linear, with a 
small tooth interposed between each. Filaments exserted, dis¬ 
tinct. Pod few-seeded.— Perennial, with a simple stem, oppo- 
