LILIACEAE. 26l 



tary or clustered, regular, mostly perfect. Perianth parted into 6 distinct 

 or nearly distinct segments, or these more or less united into a tube in- 

 ferior or partly superior (Aletrts). Stamens 6, hypogynous or borne on the 

 perianth or at the bases of its segments ; anthers 2-celled, mostly introrse, 

 sometimes extrorse. Ovary 3-celled ; ovules few or numerous in each 

 cavity, anatropous or amphitropous ; styles united ; stigma 3-lobed or 

 capitate. Fruit a loculicidal capsule (septicidal in Calochortus), or in 

 Yucca sometimes fleshy and indehiscent. Seeds various, winged or wing- 

 less. Embryo in copious endosperm. About 125 genera and 1300 species, 

 widely distributed. 



* Plants bulbous, or with rootstocks, or fibrous-fleshy roots. 

 Ovary superior, not adnate to the perianth. 



Roots fibrous-fleshy ; scape tall : flowers orange or yellow. i. Hemerocallis. 



Low fleshy herb with a short rootstock ; flowers white. 2. Leucocn'num. 



Plants with bulbs or ccrixi.< 

 Flowers umbelled. 



Perianth 6-parted. 



Odor characteristically onion-like ; ovules i or 2 in each cavity. 



3. Allium. 



Odor not onion-like ; ovules several in each cavity. 4. Nothoscordum. 

 Perianth funnelform, the tube about as long as the lobes. 5. Androstephium. 

 Flowers solitary, racemed, corymbed or panicled. 

 Anthers not introrse. 



Perianth-segments all alike or nearly so ; capsule loculicidal. 

 Anthers versatile ; tall herbs. 6. Lilium. 



Anthers not versatile ; low herbs. 



Stem leafy ; flowers leafy-bracted. 7. Fritillaria. 



Leaves only 2, appearing basal ; flowers bractless. 



8. Erythronium. 

 Outer segments narrower than the inner ; capsule septicidal. 



9. Calochortus. 

 Anthers introrse. 



Perianth of 6 separate segments. 



Filaments filiform. 10. Quamasia. 



Filaments flattened. n. Ornithogalum. 



Perianth globose, oblong or urn-shaped. 12. Muscari. 



Orary half inferior ; roots fibrous ; flowers racemed. 13. Aletris* 



** Stem a woody caudex ; leaves rigid, mostly bearing marginal fibres. 



14. Yucca. 



i. HEMEROCALLIS L. 



Tall glabrous herbs, with fibrous fleshy roots, basal linear leaves and large 

 flowers clustered at the ends of leafless scapes. Perianth funnelform, its lobes ob- 

 long or spatulate, much longer than the cylindric tube. Stamens 6, inserted at the 

 summit of the perianth-tube, shorter than the lobes, declined ; filaments filiform ; 

 anthers linear-oblong, the sacs introrsely dehiscent. Ovary oblong, 3-celled; ovules 

 numerous in each cavity; style slender, declined, tipped with a small capitate 

 stigma. Capsule oblong or ovoid, thick-walled, 3-angled, transversely wrinkled, 

 loculicidally 3-valved. [Greek, signifying beautiful for a day. ] About 5 species, 

 natives of Europe and Asia. 



1. Hemerocallis fulva L. DAY LILY. (I. F. f. 990.) Scapes 9-18 dm. 

 high, mostly longer than the leaves. Leaves 8- T 2 mm. wide, channeled; flowers 

 6-15, short-pedicelled, tawny orange, I-I.2 dm. long, opening for a day; tube of 

 the perianth 2.5-4 cm. long, the lobes oblong, netted- veined. In meadows and 

 along streams, N. B. and Ont. to Va. and Tenn. Escaped from cultivation. 

 Native of Europe and Asia. June Aug. 



Hemerocallis fUva L., the Yellow Day Lily, with bright yellow flowers, their lobes 

 parallel-veined, is occasionally found near old gardens. 



2. LEUCOCRINUM Nutt. 



A low acaulescent herb, from a short rootstock, the roots thick, fibrous. Outer 

 leaves membranous, acute, short; -inner leaves linear, elongated, tne innermost 

 reduced to bracts. Flowers large, white, umbellate from the subterranean axils. 



