282 PRIMTJLACEiE. (PRIMROSE FAMILY.) 
monadelphous at the base : anthers long and linear, approximate 
in a slender cone. — Perennial smooth herbs with fibrous roots, a 
cluster of oblong or spatulate leaves, from which proceeds a sim¬ 
ple naked scape, involucrate at the summit, and bearing an ample 
umbel of showy flowers, usually nodding on slender peduncles. 
Corolla purple-rose-color, or sometimes white. (Name fancifully 
assumed from ScoSe/ca, twelve, and 6eoi, gods.) 
1. D. Meadia, L. Leaves oblong, tapering into a margined 
petiole, toothed or entire; umbel many-flowered; anthers acute, 
many times longer than the very short tube of the filaments. — Rich 
soil, Ohio to Wisconsin. May, June. — Very handsome in cultiva¬ 
tion. 
3. TRIENTAEIS, L. Chickweed-Wintergreen. 
Calyx mostly 7-parted; the divisions linear-lanceolate, pointed. 
Corolla mostly 7-parted, spreading, flat, without any tube. Fila¬ 
ments slender, united in a ring at the base : anthers oblong, revo¬ 
lute after flowering. Pod few-seeded. — Low and smooth peren¬ 
nials, with simple erect stems, bearing some alternate usually mi¬ 
nute and scale-like leaves below, and a whorl of delicate veiny 
leaves at the summit. Peduncles one or more, very slender, one- 
flowered. Corolla white. (A Latin name meaning the third part 
of a foot, alluding to the size of the plant.) 
T. Americana, Pursh. (Star-flower.) Leaves elon¬ 
gated lanceolate, tapering to both ends; petals finely pointed. — Damp 
cold woods, through the Northern States. May. — Leaves 2 r - 
long, very delicate, as is the whole plant. 
I'YSIITIACIHA, L. Loosestrife. 
Calyx 5-parted. Corolla with a very short tube and a spreading 
5-parted limb. Stamens 5 : filaments often united in a ring at the 
base. Pod globose, 5 — 10-valved, few-many-seeded. (Parts of 
the flower rarely in fours or sixes.)—Perennials with entire 
leaves, and axillary or racemed flowers: corolla mostly yellow. 
(Named in honor of King Lysimachus , or from Xvcrts, a release , 
and fid XT)l strife.) 
§ L Tridynia, Raf. — Leaves opposite or ichor led, sessile, dotted : ca- 
lyx and golden-yellow corolUi streaked with dark lines: filaments 
mostly unequal , plainly monadelphous at the base , with no interposed 
sterile ones: anthers short: pod o-valved , 2-5-seeded. 
