ORDER 147.—THE TRILLIADS. 293 
TRIS. Flower-de-luce. 
Perianth 6-parted, the 8 outer divisions (sepals) reflexed, or spreading, 
the 3 inner (petals) erect. Stamens 3, distinct. Style short. Stigmas 8, 
petal-like, covering the stamens.—Perennial herbs with thick roots or 
rootstocks, sword-shaped or grass-like leaves, and large showy flowers. 
April—July. : 
§ Stems leafy, tall (1-2f. high), mostly bearing several flowers....a 
§ Scapes leafless, low (1-6’ high), mostly bearing but 1 flower....¢ 
a Sepals or perianth bearded. Cultivated exotics in gardens, c&c..... 11-18 
a Sepals and petals beardless. Wild plants, hardly ever cultivated....b 
b Leaves linear, grass-like, less than half an inch wide....1 
b Leaves sword-shaped, nearly 1 or 2’ wide....2-4 
c Sepals or perianth bearded, beard crested or not crested....8-10 
ce ‘Sepals and potals beardless, but sometimes with a crest....5-7 
1 L Virgin’ica. Boston I, Stem slender. Ovary and pod acute, sides 2-grooved, 
Flowers yellow-blue. E. [als obtuse, large. ¢ 
2 Lversic’olor. Blue Flag, Stem 1-angled. Flowers blue-yellow-white. Pet- 
8 IL tripet’ala. Stem terete. Flowers blue. Petals very small, 8-toothed. S. 
4 L cu’prea. Copper-col’d I. Stem terete. Fis. orange-yellow. Sepals notched. 8. 
5 I lacus’tris. Lake J. Scape 1-flowered, flower blue and yellow. Lvs. lance. W. 
6 I. ver’na. Early [. Scape 1-flowered, flower blue. Leaves linear, very long. S. 
7 I. ochroleu’ca. Cream-colored J. Scape 3-flowered, flowers yellow. Lvs. sword- 
shaped. Pod 6-angled. t+ 
8 Lcrista’ta. Crested J. Scape 1-flowered, 2-4’ high, flower blue and yellow, 
Leaves lanceolate, 8’ long. S. [obtuse. Leaves ensiform. + 
9 IL pum/ila. Dwarf J. Scape 1-flowered, 6-10’ high, flower deep blue. Petals 
10 I. Chinen’sis. China J. Scape many-flowered, flattened, flowers pale blue. 
Stigmas jagged. t+ 
11 Lsambuci’na. Common Flower-de-luce. Stem many-flowered, flowers blue or 
whitish. Petals and sepals notched. « t+ 
12 L German‘ica. German F. Stem many-flowered, flowers deep blue, spathes also 
colored. rv. t 
18 I. Susia’na. Chalcedonian Iris. Stem 1-flowered, fl. striped. Petals deflexed. + 
Orver CXLVII. TRILLIACEH. The Trilliads. 
Herbs with tuberous roots, simple stems, and whorled, net-veined leaves, 
with the flowers one or few, terminal, and mostly 3-parted; with the 
sepals green, and the petals more or less colored; with the 
stamens 6-10, awl-shaped filaments and linear anthers; with the 
ovary free, 3-5-celled, becoming in fruit a juicy, many-seeded pod. 
