262 FLORA. 



Pedicels filiform. Perianth with a very narrow tube and a salverform limb, 

 persistent, the 6 linear-oblong lobes spreading, nerved, shorter than the tube. 

 Stamens borne near the top of the perianth-tube, shorter than the lobes; filaments 

 filiform; anthers linear, their sacs introrsely dehiscent. Ovary ovoid, 3-celled; 

 style filiform; stigma small. Capsule oval or obovoid, 3-angled, sessile, obtuse, 

 loculicidal. Seeds several in each cavity, angled. [Greek, meaning white lily.] 

 A monotypic genus of northwestern N. Am. 



1. Leucocrinum montanum Nutt. Leucocrinum. (I. F. f. 991.) Inner 

 leaves 5-25 cm. long, 2-6 mm. wide; flowers 3-8; perianth-limb about 1.2 cm. 

 broad, the lobes acute; perianth-tube 2-5 cm. long, less than 2 mm. in diameter, 

 anthers coiled, at least when dry; capsule 6-i> mm. long, erect, leathery. In 

 sandy soil, S. Dak. and western Neb. to wL April -June. 



3. ALLIUM L (See Appendix.) 



Bulbous herbs, characteristic^'^ odorous alliaceous), the bulbs solitary, or 

 clustered on short rootstocks. Leaves narrowly linear, or rarely lanceolate or 

 oblong, sheathing, basal, or sometimes also on the stem. Stem (usually a scape) 

 simple, erect. Flowers white, purple, pink or green, in a terminal simple umbel, 

 subtended by 2 or 3 membranous separate or united bracts. Pedicels slender, not 

 jointed. Perianth persistent, the 6 segments separate, or united by their very 

 bases. Stamens inserted on the bases of the perianth-segments; Aliments filiform 

 or dilated, sometimes toothed; anther-sacs introrsely dehiscent. Ovary sessile or 

 nearly so, completely or incompletely 3-celled; style filiform, jointed, usually 

 deciduous; stigmas small; ovules 1-6 in each cavity. Capsule loculicidal. [Latin 

 for garlic] About 275 species of wide distribution. Besides the following, some 

 40 others occur in the western U. S. 



Leaves oblong-lanceolate, absent at flowering time. x. A. tricoccum. 



Leaves linear, present at flowering time. 



Bulb-coats membranous, not fibrous-reticulated. 



Umbel capitate ; pedicels shorter than the flowers. 2. A. Sibiricum. 



Umbel loose ; pedicels much longer than the flowers. 

 Flowering umbel nodding. 



Perianth campanulate, white or pink; outer segments acute. 



3. A. cernuum. 

 Perianth urn-shaped, purple ; outer segments obtuse or notched. 



4. A. Allegheniense. 

 Flowering umbel erect. 



Leaves flat or channeled, all nearly basal. 5. A. stellatum. 



Leaves terete, hollow, several on the stem ; flowers often replaced by 

 bulblets. 6. A. vineale 



Bulb-coats fibrous-reticulated. 

 Capsule not crested. 



Flowers mostly replaced by bulblets ; scape 3-6 dm. tall. 7. A. Canadense. 

 Flowers rarely replaced by bulblets. 



Scape 3-6 dm. tall ; pedicels 16-24 mm. long ; perianth segments thin. 



8. A. 7nutabile. 

 Scape 1-2 dm. tall ; pedicels 8-12 mm. long ; perianth-segments rigid 

 in fruit. 9. A. Nuttallii. 



Capsule-valves with 2 short crests. 10. A. reticulatum. 



1. Allium tricoccum Ait. Wild Leek. (I. F. f. 992.) Bulbs ovoid, clus- 

 tered, their coats fibrous-reticulated. Leaves oblong-lanceolate or elliptic, appear- 

 ing early in the spring, but withering before flowering time, 1.5-3 dm. long, 

 2-5 cm. wide, tapering into a long petiole; scape 1-4 dm. tall; bracts of the umbel 

 usually 2, membranous, acuminate, deciduous; umbel many-flowered, erect; pedi- 

 cels 1-2 cm. long; flowers white; perianth -segments obtuse, 4-6 mm. long; ovule 

 1 in each cavity of the ovary; capsule deeply 3-lobed, about 6 mm. broad; seeds 

 i^lolxjse, black, smooth. In rich woods, N. B. to Minn., N. Car. and Tenn. 

 June-July. 



2. Allium Sibiricum L. (I. F. f. 993.) Bulbs narrovdy ovoid, their coats 

 not fibrous-reticulated. Scape 3-7 dm. high, bearing 1 or 2 elongated terete hollow 

 leaves: basal leaf 1; bracts of the umbel 2, ovate; umbel many -flowered, capitate, 



