40 FOUNDATIONS OF BOTANY 
2. P. giganteum, Dietrich. SmootH Sotomon’s Seat. Stem 
simple, stout, curving above, 3-8 ft. high. Leaves lanceolate to ovate, 
many-nerved, partly clasping, smooth on both sides. Peduncles nearly 
half as long as the leaves, 2-6-flowered. Perianth greenish-yellow, 
in. long. Filaments smooth. Berry blue, } in. in diameter. In 
rocky woods and along streams.* 
XXII. CONVALLARIA, L. 
Low, smooth, stemless, perennial herbs. Leaves 2, oblong, 
with long petioles, from a slender, creeping rootstock. Scape 
slender, angled, enclosed at the base by the leaf-stalks. Flowers 
racemed, white, drooping. Perianth bell-shaped, with recurved 
lobes. Stamens borne on the base of the perianth. Ovary 
3-celled, ripening into a few-seeded red berry. 
1. C. majalis, LL. Lity-or-THE-vALutry. A familiar garden flower, 
cultivated from Europe, and also found wild in mountain woods 
’ from Virginia to Georgia. 
XXII. TRILLIUM, L. 
Low herbs with the stem springing from a short rootstock. 
Leaves 3, large, netted-veined, in a whorl. Flower large, ter- 
minal. Perianth of 6 parts, the 3 sepals unlike the 3 petals 
in color and in texture. Stamens 6, with the linear anthers 
usually opening inward, longer than the filaments. Stigmas 
3, sessile, spreading at the tips. Ovary 3 or 6-angled, 3-celled, 
many-seeded. Fruit a roundish, many-seeded purple berry. 
1. T. sessile, L. Rootstock erect or ascending, corm-like. Stem 
slender, 1-8 in. high. Leaves broadly oval, obtuse’ or acute at the 
apex, rounded and sessile at the base, 3—5-nerved, smooth, bright 
green, not mottled. Flowers sessile, sepals lanceolate, 2-1 in. long, 
petals purple, elliptical, about the length of the sepals. Stamens 
half the length of the petals. Styles elongated, straight. In rich 
woods.* 
2. T. Underwoodii, Small. UNpERWoopD’s WAKE-ROBIN. Root- 
stock horizontal, stem stout, 4-12 in. high. Leaves ovate-lanceolate 
to broadly ovate, acute or short taper-pointed at the apex, rounded 
and sessile at the base, wavy on the margins, 3—5-nerved, smooth, 
prominently mottled with different shades of green. Flowers sessile. 
Sepals lanceolate, 14-2 in. long, often purplish green. Petals purple, 
lanceolate to oblanceolate, 2-3 in. long. Stamens 3-4 the length 
of the petals. Style very short, stigmas recurved. Fruit an ovoid 
berry. In rich woods.* 
