LILIACEJS. (LILY FAMILY.) 521 



Tribe II. MEL. AIVTHIE^E. Styles or sessile stigmas 8, separate down to the ovary. 

 Fruit a several - many-seeded pod. Seeds with a soft or loose coat. Anthers extrorse, 

 except in No. 11. Perianth withering-persistent. Leaves parallel-veined and alternate. 

 Flowers often polygamous, sometimes dioecious. 



* Anthers heart-shaped or kidney-shaped, connnently 1-celled, shield-shaped after opening : 



pod 3-horned, and septicidal : seeds Hat, meuibranaceous- margined. 

 -- Sepals with one or two glands or spots on the upper face near the base. 



3. Melantliium. Flowers polygamous. Sepals entirely free from the ovary, their long 



claws bearing the stamens. 



4. Zygadeiius. Flowers perfect or polygamous. Sepals nearly free from the base of 



the ovary : stamens free. 



*- t- Sepals destitute of glands, and not raised on claws. 



5. Stenantliium. Perianth below coherent with the base of the ovary ; the sepals lanceo- 



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



6. Veratmm. Perianth entirely free ; the obovate or oblong sepals longer than the 



stamens. Flowers panicled, polygamous. 



7. Amianthium. Perianth entirely free, the oval or obovate sepals shorter than the 



stamens. Flowers racemed, perfect. 

 * * Anthers 2-celled, extrorse : pod loculicidal. Flowers racemed or spiked. 



8. Xerophyllum. Flowers perfect. , Cells of the globose-3-lobed pod 2-seeded. Leaves 



very slender. Seeds 2 in each cell. 



9. Helonias. Flowers perfect. Cells of the globose-3-lobed pod many-seeded. Leaves 



lanceolate. Scape naked. Seeds numerous. 



10. Chamselirium. Flowers dioecious. Pod oblong, many-seeded. Stem leafy. 



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



11. Tofleldia. Flowers perfect, spiked or racemed. Leaves equitant. 



Tribe III. UVULARIE^E. Style 3-parted ; i. e. styles 3 united into one only at the 

 base. Fruit a few-seeded pod. Seed-coat soft or loose. Anthers more or less extrorse. 

 Perianth 6-leaved, deciduous. Stems from a rootstock or fibrous roots, leafy. Leaves 

 alternate, broad, parallel-veined. 



12. U vularia. Pod 3-angular or 3-lobed. Anthers linear, adnate, on short filaments. 



Tribe IV. ASPAR AGINEJE. Style 1, undivided (i. e. the 3 or rarely 2 styles united 

 to the summit into one). Fruit a few-seeded berry. Seeds with a close coat and horny 

 albumen. Stems from a rootstock. Leaves parallel-veined, chiefly alternate. Pedicels 

 often articulated with the flower or in the middle. 



* Plants with true leaves. Coat of the hard seed thin and membranous. 

 i- Anthers extrorsely attached to the filament. Stamens hypogynous. Sepals distinct. 



13. Prosartes. Anthers linear-oblong, pointless. Flowers terminating the forked branches, 



on straight jointless pedicels. 



14. Streptopus. Anthers arrow-shaped, pointed. Flowers lateral along the forked branches : 



pedicels bent about the middle. 



15. Clintonia. Anthers oblong, pointless. Flowers terminating a naked scape. 



t- - Anthers introrse. Filaments attached to the perianth. Stem simple. 



16. Convallaria. Perianth bell-shaped, 6-lobed, bearing the stamens. Leaves all at the 



base of the naked scape, which bears the flowers in a simple raceme. 



17. Smilaciiia. Perianth 4-6-parted, spreading, the stamens borne at the base. Stem 



leafy. Flowers in a simple or compound terminal raceme. 



18. Polygonatum. Perianth tubular, 6-cleft, bearing the stamens above the middle. 



Stem leafy to the top. Flowers axillary. 



* * Plants with branching stems, their true leaves reduced to scales : leaf-like branchlets 

 serving for foliage. Seed-coat hard and black. 



19. Asparagus. Perianth 6-parted. The apparent leaves very narrow or thread-like. 



