282 LILIACEAE (LILY FAMILY) 



e. Style or styles filiform '/. 



/. Style single, entire or more or less deeply parted g. 

 g. Style 8-parted to below the middle. 



Leaves perfoliate 11. UVULARIA. 



Leaves sessile, not perfoliate 12. OAKESIA. 



g. Style entire or slightly 3-lobed at the summit h. 



h. Stern rhizomatose at the base 15. HEMEROCALI.IS. 



Ti. Stem bulbous at the base i. 



i. Bulb solid (a corm) ; leaves 2, basal 17. EBYTHKONIUM. 



*. Bulb scaly ; stem leafy 16. LILIUM. 



i. Bulb tunicate. 



Perianth-segments 1-nerved. 



Herbage with the odor of onion 13. ALLUTM. 



Herbage without strong odor 14. NOTHOSCORDUM. 



Perianth-segments 8-several-nervetl. 



Perianth blue ; filaments thread-like . . . .18. CAMASSIA. 

 Perianth greenish-white ; filaments broad . . .19. ORNITHOGALUM. 

 /. Styles 8, distinct to the base j. 

 j. Stigmas linear. 



Perianth-segments purplish ; seeds many in each cell . . 8. HELOMAS. 

 Perianth-segments white ; seeds 2 in each cell ... 2. XEROPIIYLLUM. 

 j. Stigmas terminal. 



Anthers 2-celled 5. TOFIELDIA. 



Anthers confltiently 1-celled. 

 Stem pubescent. 



Perianth-segments clawed 9. MELANTHIUM. 



Perianth-segments essentially sessile . . . .10. VERATRTM. 

 Stem glabrous. 



Perianth-segments glandular near the base ... 8. ZTGADENUS. 

 Perianth-segments not glandular. 



Flowers polygamous 7. STENANTIUI M. 



Flowers perfect 6. AMIANTIIIUM. 



1. NARTHECIUM [Mohring] Juss. Boo ASPHODEL 



Sepals 6, linear-lanceolate, yellowish, persistent. Anthers linear, introrse. 

 Seeds ascending, appendaged at each end with a long bristle-form tail. Root- 

 stock creeping, bearing linear equitant leaves, and a simple stem or scape termi- 

 nated by a simple dense bracteate raceme ; pedicels bearing a linear bractlet. 

 (Name an anagram of Anthericum, from dv0tpiKos, supposed to have been the 

 Asphodel.) 



1. N. americanum Ker. Stem 2.5-4 dm. high; leaves 0.7-1.5 mm. wide, 

 7-9-nerved ; raceme dense (2-5 cm. long) ; perianth-segments narrowly linear 

 (4-5 , mm. long), scarcely exceeding the stamens. (Abama Morong.) Sandy 

 bogs, pine-barrens of N. J. June, July. 



2. XEROPHYLLUM Michx. 



Perianth widely spreading; sepals petal-like (white), oval, distinct, without 

 glands or claws, 6-7-nerved, at length withering, about the length of the awl- 

 shaped filaments. Anthers 2-celled, short, extrorse. Styles thread-like, stig- 

 matic down the inner side, persistent. Capsule globular, 3-lobed, obtuse (small). 

 Seeds collateral, 3-angled, not margined. Herb with the stem simple, from a 

 thick tuberous rootstock, bearing a simple dense bracteate raceme of showy 

 flowers, and thickly beset with needle-shaped leaves, the upper reduced to 

 bristle-like bracts ; those from the root in a dense tuft, reclined, rough on the 

 margin, dry and rigid. (Name from 7;/>6j, arid^ and ^tfXXov, leaf.} 



I '. X. asphodeloides (L. ) Nutt. Stem 3-12 dm. high. (X. setifolium Michx.) 

 Pine-barrens, N. J. to e. Tenn., and Fla. June. 



3. HEL6NIAS L. 



Perianth of spatulate-oblong purple segments, persistent, several-nerved. 

 glandless, turning green, shorter than the thread-like filaments. Anthers 

 2-celled, roundish-oval, blue, extrorse. Styles revolule, sti^niatir down the 

 inner side, deciduous. Capsule obcordately 3-lobed, loculicidally .'5-valved ; the 

 valves divergently 2-lobed. A smooth perennial, with many oblong- spatulate 



