40 FOUNDATIONS OF BOTANY 



2. P. giganteum, Dietrich. Smooth Solomon's Seal. 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-flo\vered. Perianth greenish-yellow, 

 I 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, L. Lily-of-the-valley. A familiar garden flower, 

 cultivated from Europe, and also found wild in mountain woods 

 from Virginia to Georgia. 



XXm. 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, |-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. Underwood'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, l|^-2 in. long, often purplish green. Petals purple, 

 lanceolate to oblanceolate, 2-3 in. long. Stamens |-^ the length 

 of the petals. Style very short, stigmas recurved. Fruit an ovoid 

 berry. In rich woods.* 



