Trillium. GUI. TRILLIACE^. 545 



slightly acuminate, 3-veined ; umbch on very short peduncles, which are 

 arranged alternately on a common rachis. — N. J. to Ga. A vigorous, evergreen 

 climber, ascending trees to a great height. Stem with few scattered prickles. 

 Leaves numerous, very thick and smooth. Raceme of umbel.s longer than the 

 leaves, peduncles shorter than the ultimate pedicels. Jn. — Aug. 



4. S. I'AN'nruATis. Pursh. (S. tamnoides. Ell.) 



St. branched, terete, aculeate; Iv^. ovate, somewhat panduriform, acumi- 

 nate, cordate, 3-veined; pcd. twice as long as the petioles; nmhel many-flow- 

 ered ; berries tilack. — In sandy woods, N. J. to Car. Stem twining, (3 — I2f. 

 Leaves smooth and shining both sides, with shallow depressions or sinuses on 

 each edge. July. 



* Slcms shrubby, unarmed. 



5. S. PsEUDO-ClIINA. 



St. terete, unarmed ; cauline lis. ovate, cordate, ramial ovate-oblong, 

 all 5- veined, on short petioles; pcd. very long. — Sandy woods, N. J. to 

 Car., W. to Ohio. Root large, tuberous. Stem purplish-brown, very smooth, 

 branching and climbing by tendrils which arise from the base of the petioles. 

 Leaves 2 — 4' by 1 — 2', slightly hi.spid on the veinlets beneath. Peduncles lon- 

 ger than the leaves. May, Jn. 



* * * Stem herbaceous. 



6. S, HERBACEA. (S, pcduuculata. Muhl.) 



St. herbaceous, unarmed, angular, erect, or inclining ; Ivs. ovate, 7 — 9- 

 veined, cuspidate; umbels on long peduncles. A coarse, smooth, ill-scented 

 plant, in thickets and low grounds, N. Eng. to Ky. and Wise. ! Stem slightly 

 angled, 3 — 6 or 8f high, usually nodding with its slender summit and few small 

 branches, and leaning on other plants or on each other. Leaves 2 — 4' by U — 3, 

 often roundish, paler beneath, the petioles winged at base and producing along, 

 slender tendril from the top of each wing. Fertile umbels simple, about 40- 

 flowered, on peduncles 6 — 8' long, those of the sterile umbels shorter. Flowers 

 yellowish-green, diffusing about the plant an intolerably offensive and sicken- 

 ing odor. Berries dark blue. Jn. 

 fi. St. more generally climbing by its tendrils; Ivs. broadly ovate, subcordate. 



7. S. LASIONEURON, Hook. 



St. terete, climbing, subsimple, unarmed; Ivs. oblong, broadly ovate, cor- 

 date, rounded and mucronate at apex, 7-veined, glaucous and hispid-pubescent 

 on the veinlets beneath, glabrous and green above ; ped. a little longer than the 

 petioles, many-flowered; tendrils from the base of the petioles. — Green Co., 

 Ind. ! also Can. Stem 3 — 6f high. Peduncle much shorter than the leaves, 

 which are often about 4^' by 3'. 



Order CLII. TRILLIACE^.— Trilliads. 



Herbs with simple stems, tuberous roots and verficillate, net-veined leaves. 



Fls. large, terminal, solitary, perfect, trimerous, rarely tetramerous. 



Cal. — Sepals 3, green or herbaceous. Coa-.— Petals 3, larger than the sepals, colored or herbaceous. 



Sta. 6—10. Fil. s.ibulate. Anrh. linear, with cells on their edges and the connectile extended. 



Ova. free. 3— 5-celled. Stij. distinct. Stis:. small. Ovu'e-s 00, in 2 rows, ascending. 



JFV. succulent, 3— 5-celled. Sd^. 00. Embryo minute, in fleshy albumen. 



Genera 4, species 30, in woodlands, temperate parts of Europe, Asia and N. America. The roota of 

 Kome species are emetic. 



Genera. 



S in one, whorl. Trillium. 1 

 Leaves ( in two whorls. Mcdeola. 2 



TRILLIUM. Miller. 



Lat. trilix, triple; because the sepals, petals, carpels, cells, stigmas and leaves are in 3s. 



Perianth deeply G-parted, in 2 distinct series, outer of 3 sepals, 

 inner of 3 colored petals : stamens nearly equal ; stigmas sessile, 

 distinct or approximate ; berry 3-celled ; cells many-seeded. — 4 

 *SV^;;i simple. Lvs. 3, ivhorled at the top of the stem, reticulaie-pabnaie' 

 veimd. Fls. solitary, terminal. 



