MELANTHACEJi. (COLCHICUM FAMILY.) 473 



3 Anthers heart-shaped or kidney-shaped, confluently 1-celled, shield-shaped after opening: 



pod 3-horned. septicidal : seeds flat, membranacecus-niargined. 



-i- Sepals glandular on the inside near the base. 



4. MELANTIIIUM. Flowers polygamous. Sepals entirely free from the ovary, their long 



claws bearing the stamens. 



5. ZYGADEXUS. Flowers perfect. Sepals nearly free or coherent with the base of the ovary : 



stamens separate. 



•<- -i- Sepals destitute of glands, not clawed. 



6. STENANTHIUM. Perianth below coherent with the base of the ovary ; the sepals lanceo- 



late, pointed, longer than the stamens. Racemes compound-panicled. 



7. YERATRUM Perianth entirely free ; the obovate or oblong sepals longer than the sta- 



mens Flowers panicled, polygamous 

 8 AMIANTIIIUM. Perianth free, the oval or obovate sepals shorter than the stamens. 

 Flowers racemed, perfect. 



* * Anthers 2-celled : pod loeulicidal. Flowers racemed or spiked. 

 9. XEROPHYLLUM. Flowers perfect. Cells of the globose-3-lobed pod 2-seeded. Leaves 

 rush-like. Seeds 2 in each ceU. 



10. HELONIAS Flowers perfect. Cells of the globose-3-lobed pod many-seeded. Leaves 



lanceolate. Scape naked. Seeds numerous. 



11. CHAMiELIRIUM. Flowers dioecious. Pod oblong, many-seeded. Stem leafy. 



* # * Anthers 2-celled, innate or introrse : pod septicidal. 



12. TOFIELDIA. Flowers perfect, spiked or racemed. Leaves equitant. 



Suborder I. UVULABIEJl. The Bellwort Family. 



1. UVUJLABIA, L. Bellwort. 



Perianth nearly bell-shaped, lily-like ; the sepals spatulate-lanceolate, with a 

 honey-bearing groove or pit at the erect contracted base, much longer than the 

 stamens, which barely adhere to their base. Anthers long and linear, adnate : 

 filaments short. Style deeply 3-cleft ; the divisions stigmatic along the inner 

 side. Pod triangular or 3-lobed, 3-valved from the top. Seeds few in each 

 cell, obovoid, with a tumid or fungous rhaphe. — Rootstock short or creeping. 

 Flowers pale yellow, nodding, solitary or rarely in pairs, on terminal peduncles 

 which become lateral by the growth of the branches. (Name " from the flowers 

 hanging like the uvula, or palate.") 



* Leaves clasping-perfoliate : sepals acute : pod obovate-truncate, 3-lobed at the top. 



1. U. graildifldra, Smith. (Large-flowered Bellwort.) Leaves 

 oblong or elliptical-ovate, pale and obscurely pubescent underneath ; sepals 

 smooth within; anthers blunt-pointed; lobes of the pod with convex sides. — llich 

 woods, Vermont to Ohio, Wisconsin, and northward. May, June. — Flowers 

 pale greenish-yellow, 1^' long. 



2. U. perfbliata, L. (Smaller Bellwort.) Leaves ovate or ob- 

 long-lanceolate, smooth, glaucous underneath ; sepals granular-roughened inside ; 

 anthers conspicuously pointed ; lobes of the pod with concave sides. — Moist 

 copses ; common eastward and southward. May. — Smaller than No. 1 ■ 

 flowers pale yellow, f to 1' long. 



# # Leaves sessile : sepals rather obtuse : pod ovoid-triangular, sharp-angled 



3. U. sessilifolia, L. (Sessile-leaved Bellwort.) Siraotk; leaves 

 oval or lanceolate-oblong, pale, glaucous underneath; styles united to the mid 



40* 



