42 KEY AND FLORA 



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. erectum L. Squaweoot, Benjamin. Rootstock rather up- 

 right, large and stout. Leaves broadly diamond-shaped, tapering to 

 a short point. Pedicel 1-3 in. l.ong, not quite erect. Petals ovate to 

 lanceolate, much broader than the sepals, of a rich brownish-purple 

 or sometimes white or pale. Stigmas distinct, stout, and spreading. 

 The disagreeable scent of the flower has given rise to several absurd 

 popular i^ames for it. In rich woods. 



3. T.grandiflorumSalisb. Large-Flowered Wake-Robin. Root- 

 stock horizontal, stem slender, 12-18 in. high. Leaves rhombic- 

 ovate, taper-pointed at the apex, rounded and sessile or slightly 

 peduncled at the base, smooth and with a bloom, 5-7 -nerved, bright 

 green. Peduncle longer than the erect or slightly declined flower. 

 Sepals lanceolate-acute, 1-1| in. long. Petals white, fading to pink, 

 longer than the sepals. Stamens less than half the length of the 

 petals. Style short; stigmas recurved. Fruit a black, roundish berry. 

 In rich woods.* 



4. T. cernuum L. Nodding Trillium. Stem 8-20 in. high. 

 Leaves , broadly rhombic or rhombic-ovate, 2-4 in. wide, taper- 

 pointed, sessile or nearly so. Peduncle recurved beneath the leaves. 

 Petals white or pink, wavy, somewhat recurved, as long as the 

 sepals or a little longer. Stamens with filaments about equaling the 

 anthers. Stigmas stout, recurved. Rich moist woods. 



5. T. nivale Riddell. Dwarf White Trillium. Stem 2-4 in. 

 high. Leaves petioled, oval to ovate. Flower white, erect. Petals 

 4-1 J in. long, ovate -spatulate. Rich, damp woods, blooming jfith 

 the very earliest spring flowers. 



6. T. undulatum Willd. Painted Trillium. Stem 8-12 in. high. 

 Rootstock oblique to the rest of the stem, rather small ; roots long 

 and fibrous. Leaves ovate, taper-pointed. Petals white, penciled at 

 the base, with purple stripes, lance-ovate, somewhat recurved, wavy. 

 Cold woods, especially N. 



XXV. SMILAX L. 



Mostly woody vines, usually with prickly stems, climbing 

 by tendrils. Rootstock often large and tuberous. Leaves alter- 

 nate, prominently nerved, netted-veined, petioled ; stipules re- 

 placed by persistent tendrils. Flowers regular, dioecious, small, 

 greenish, in axillary umbels. Perianth bell-shaped, segments 

 6. Stamens 6, distinct. Ovary 3-eelled, 3-6-0 vuled; stigmas 

 1-3, sessile or nearly so. Fruit a 1-6-seeded globose berry. 



