LILIACK^E. (lily FAMILY.) 519 



•»- 4- Stem or scape from a bulb or conn ; capsule many-seeded. 



20. Erythronium. Scape from a solid bulb, with a pair of leaves. Flowor ■solitary. 



Seeds angled, obovoid. 



21. Liliuin. Stem leafy from a scaly bulb. Seeds horizontal, flattened. 



• * ♦ Fruit a berry ; stem from a tuber-like rootstock. bearing 1 or 2 whorls of leaves ; 



flowers terminal ; stigmas sessile. 



22. Medeola* Leaves in 2 whorls. Flowers umbellate. Perianth-segments similar, col- 



ored, deciduous. 

 2:!. Trilliuui. Leaves (3) in a terminal whorl. Flower solitary' ; outer sejjals leaf-like, 

 persi. stent. 



Series C. Floral bracts green or greenish (rarely scarious), or none. Sta- 

 mens at the base of the distinct 1 - several-nerved persistent perianth-seg- 

 ments ; anthers small, versatile. Styles or sessile stigmas distinct. Ca]> 

 sule mostly septicidal. Seeds with a loose testa or appendaged. Leaves 

 with transverse veinlets (except in n. 24 and 25). 



• Stems leafy or bracteate, from a thi(;k tuberous rootstock ; flowers nicemose ; anthers 



2-celled ; stigmas linear. 



24. Helonias. Leaves radical, oblanceolate. Flowers i)erfect. Capsule broadly ob<jvate, 



manyseoded. 

 2r). Chaniaelirium. Stem very leafy. Flowers dioecious. Capsule oblong, many-seeded. 

 2G. Xerophyllum. Stem very leafy; leaves very narrow. Flowers perfect Capsule 



few-seeded. 



* ♦ Stems distichously eqnitant-leafy, from a creeping rootstock ; flowers on bracteolate ped- 



icels, racemose ; anthers 2-celled ; stignias small, terminal : seeds often appendaged. 

 27. Tofieldia. Bractlets 3, verticillate. Styles short. Seeds horizontal. 



25. Narthecium. Bractlet linear. Stigma slightly lobed. Seeds ascending. 



* • * Anthers heart- or kidney-shaped, confluently 1-eelled, and peltate after opening ; 



stigmas terminal; capsule 3-beaked by the persistent styles; seeds angled or flat- 

 tened and margined. 

 *- Stems tall, leafy, from a thick rootstock, pubescent above ; flowers polygamous, race- 

 mose-paniculate ; seeds flat, winged. 



29. Melanthluni. Sepals free from the ovary, their long claws bearing the filaments. 



30. Veratrum. Sepals without claws, slightly adnate to the ovary. Leaves strongly 



n -rved and plicate. 



•.- ^- Root mostly bulbous ; glabrous ; flowers racemose or panieled ; seeds narrow, angled ; 



leaves linear. 



31. Stenantliiuin. Sepals lanceolate, acuminate, without glands. 



32. Zyg^adenus. Sepals oblong to ovate, glandular toward the base. 



33. Amianthiuni. Flowers in a dense raceme. Sepals ovate-oblong, glandless, free 



from the ovary. Cells of the capsiUe widely divergent, 1 - 2-seeded. 



1. SMI LAX, Tourn. Greenhiuer. Cat-hrier. 



Flowers dicccions in umbels or axillary peduncles, small, greenish or yellow- 

 ish, regular, the perianth-segments distinct, deciduous. Filaments linear, in- 

 serted on the very base, the introrse anthers linear or oblong, fixed by the base, 

 apparently 1 -celled. Ovary of fertile flowers 3-colled (1 -colled, with single 

 stigma, in n. 11) ; stigmas thick and s})reading, almost sessile; ovules 1 or 2 

 in each cell, pendulous, orthotropous ; fruit a small berry. — Shrubby or rarelv 

 herbaceous, usually climbing or su))ported by a pair of tendrils on the petiole 

 of tlie ribbed and netted-veiued simple leaves. (The ancient Greek name, of 

 obscure meaning.) 



