- 
OF ARTS AND SCIENCES. 2s 
1-seeded. — Lam. IIl. t. 266, f. 2; Ker, Bot. Mag. t. 1316; Meehan, 
Nat. Fl. 2.157, t. 40. Gyromia Virginica, Nutt. Canada to Florida 
and Arkansas. 
38. TRILLIUM, Linn. 
* Ovary and fruit 6-angled and more or less winged. (Mature fruit very im- 
perfectly known.) 
« Flowers sessile: the broad connective produced beyond the anther-cells. 
1. T. sessiLe, Linn. Leaves sessile, broadly ovate or rhomboidal, 
acute, somewhat cuneate or sometimes broadly rounded at base, 1} to 
5 inches long: sepals spreading: petals narrowly lanceolate to ob- 
lanceolate, acute or acutish, } to 3 inches long, brown-purple or rarely 
greenish-white : stamens erect, usually exceeding the stout suberect 
stigmas ; filaments 1} lines long or less.— Curt. Bot. Mag. t. 40; 
Lodd. Bot. Cab. t. 875; Fl. Serres, t. 2311. 7. viride, Beck. 
T. discolor (?), Chapman, Flora, 478. Pennsylvania to Wisconsin, 
south to Florida and Alabama. 
Var. Wrayi. Petals spatulate, obtuse, greenish, an inch long. — 
T. discolor, Wray ; Hook. Bot. Mag. t. 3097. Georgia. 
Var. NurtaLtLtu. Upper stem and nerves of the leaves beneath 
rough-pubescent : petals linear-lanceolate, purplish-green with brown 
base, 2 inches long. — T. viridescens, Nutt. Trans. Amer. Phil. Soe. 
2.5.155. Arkansas. 
Var. CaLirornicum. Stouter: leaves broadly rhombic-ovate, 3 
to 6 inches long: petals oblanceolate to rhombic-obovate, | to 4 inches 
long, purple or rose-color or white: anthers 6 to 9 lines long, usually 
considerably exceeding the stigmas. — Vars. giganteum and chlorope- 
talum, Torr. in Pacif. R. Rep. 4.151. California (San Luis Obispo 
northward) to Oregon. 
Var. ANGUSTIPETALUM, Torr. 1.c. Similar, but the leaves some- 
what petiolate ; petals narrowly oblanceolate to linear. — Var. gigan- 
teum, Hook. & Arn. Bot. Beechey, 402. California to Oregon; less 
frequent. 
2. T. REcuRvVATUM, Beck. Leaves petioled, ovate to ovate-oblong, 
usually acute at both ends: sepals reflexed: petals oblong-lanceolate, 
narrowed to a claw at base, 9 to 18 lines long, brown-purple: stamens 
incurved, much exceeding the stigmas; filaments 2 or 3 lines long. — 
Am. Journ. Sci. 11. 178. * TZ. unguiculatum, Nutt. 1. c. ‘Wisconsin to 
Indiana and Arkansas. 
Var. (?) LANCEOLATUM. Leaves sessile, more narrowly lanceolate: 
sepals less strictly reflexed; petals more narrowly lanceolate or nearly 
VOL. XIV. (N. S. VI.) 18 
