130. LiLIACRAE 279 



5. Flowers axillary or terminal, solitary or few, or in imil)els. 



6. Lca\es reduced to scales with fiiiforni short branchlcts appearing 

 like leaves about I cm long in the axils; flowers axillary, small, 

 greenish, nodding, on slender, jointed pedicels; berry red, .3- 



seeded 16. Asparagus 



6. Leaves foliaceous. 



7. Flowers in axillary umbels, unisexual; leaves net-veined; fruit a 



berry 25. Smilax 



7. Flowers not in imibels. 



8. Stem simple; perianth-segments united below the middle; 



flowers greenish; fruit a berry 20. Polygonalmn 



8. Stem forked above; perianth-segments free; flowers yellow- 

 ish; fruit a capsule 19. Uvularia 



5. Flowers in a terminal raceme or panicle. 

 9. Leaves linear; styles 3, separate. 



10. Stem puberulent above; perianth-segments clawed, and (in 

 our species) bearing a pair of glands; plants with a rhizome 



5. Melanthium 



11). Stem glalirous; plants from a bulb. 



11. Perianth-segments lanceolate, acuminate, glandless; panicle 



many-flowered 1. Stenanthiiim 



1 1 . Perianth-segments bearing a large obcordate gland; 

 raceme simple or sparingly branched, few- or several- 

 flowered 2. Zigadenus 



9. Leaves not linear. 



12. Lea\'es 2 or 3, cordate at base; perianth-segments 4, white; 



stamens 4; fruit a berry 18. Maiantheniurn 



12. Leaves several, lanceolate or oblanceolate; perianth-segments 

 6. 

 13. Plants not dioecious. 



14. Flowers (in our species) greenish-jjurple ; leaves strong- 

 ly veined; fruit a capsule 6. Veratruvi 



14. Flowers white; fruit a berry 17. Smilacina 



13. Plants dioecious; flowers white; fruit a capsule 



4. Chamaelirium 



1. Feaves all or mostly basal, or a]3i>arently so, rarely absent at flowering time; 

 iruit a capsule. 



15. Flowers very large, over 5 cm long. 



16. Flowers orange or yellow 9. Hemerocallis 



16. Flowers blue or whitish 10. Hosta 



15. Flowers smaller. 



17. Flower solitary, nodding; leaves 2 (or 1); plants from deep-seated 



conns 12. Erythronium 



17. Flowers several or many. 



18. Flowers in racemes or jjanicles. 



19. Inflorescence a large panicle; flowers large (3-5 cm long); 



leaves stiff, long-pointed, filamentous on the margins 



22. Yucca 



19. Inflorescence a raceme; flowers smaller; leaves soft, not 

 filamentous. 

 20. Flowers white; plants with rhizomes. 



21. Sepals and petals nearly distinct throughout 



3. Tofieldia 



