LILY FAMILY. 



107 



Flowers in a dense raceme; filaments glabrous; styles 3, distinct. 



15. Xerophyllum. 



Flowers in loose racemes; filaments densely woolly; style one, un<livided. 



16. Narthecium. 



Acaulescent; leaves 2; stamens 3, opposite the sepals. . . 17. Scoliopus. 

 8tem simple, bearing at summit a whorl of 3 broad netted veined leaves and 

 a single large flower; stamens 6 18. Trillium. 



B. Fruit a berry; plants with rootstocks. 



Leaves broad. 



Stem very short, the leaves arising from near the surface of the ground; 



flowers red, in umbels, raised on a peduncle 19. Clintonja. 



Stem simple, leafy; flowers very small, white. 

 Raceme short, simple, terminal; perianth-segments and stamens 4, leaves 



1 to 3, cordate, petioled 20. Maianthemum. 



Raceme simple or compound, terminal, composed of many small flowers; 



leaves several to many, sessile 21. Smilacina. 



Stems branching; flowers axillary at the ends of the leafy branches. 



22. DlSPORUM. 



Leaves reduced to scales; branchlets filiform, clustered in the axils; bushy- 

 branching plant 23. ASPARAGUS. 



1. FRITI LLARIA L. 



Stems erect, simple, from a bulb of thick fleshy scales; radical 

 leaves large, ovate or elliptic; cauline sessile, alternate or whorled. 

 Flowers solitary or in racemes, dull purple, brownish, pink or 

 scarlet. Perianth campanulate to funnelform, deciduous, of 6 dis- 

 tinct segments, each segment with a shallow nectar-bearing area or 

 pit near the base. Stamens 6, inserted on the base of the segments, 

 included; filaments slender; anthers extrorse, more or less versatile. 

 Ovary sessile or nearly so. Capsule membranaceous, 6-angled or 

 winged, loculicidally 3-valved. Seeds numerous, in 2 rows in each cell. 

 (From the Latin fritillus, a dice-box, the application uncertain.) 



Styles united, stigma shortly 3-lobed; perianth pink, of a uniform color, i. e., not 



spotted; glands obscure 1. F. pluriflora. 



Styles 3-parted above; stigmas linear; glands mostly obvious. 

 Leaves in 2 to 3 wborls on the upper part of the stem or the uppermost alter 

 nate; capsule winged. 



Periantb scarlet 2. F. coccinea. 



Perianth dark-purple, mottled or checkered with greenish- yellow. 

 Segments % t-> 1% in. long, at least the inner with crisped or erosulnte 



margins; raceme commonly 4 to many-flowered. . . . 3. F. mutica. 

 Segments 1 to \ y 2 in. long, the margin entire; racemes 1 to 4-flowered. 



4. F. lanceolata. 



Leaves mostly basal, not in distinct whorls; capsule obtusely angled. 

 Raceme many-flowered; perianth yellowish-green, not spotted, 1 to 1% in. 



long 6. F. agrestic. 



Raceme 1 to 3-flowered. 

 Perianth brownish or black-purple or greenish with interrupted purple 



lines, y* to 1 in. long 5. F. biflora. 



Perianth wnite or nearly so, ^ to % in. long 7. F. liliacea. 



1. F. pluriflora Torr. Pink Fritillaria. Stems 6 to 10 in. 

 high, from a somewhat yellowish bulb of few (6 to 8) scales; leaves 

 few, oblong-lanceolate, 4 in. long, mostly basal; perianth uniform 

 pink-purple, the segments obovate-oblong, acutish, 1 in. long; glands 

 obscure; stamens f the length of the petals, the filaments slightly 

 dilated at base; capsule as broad as long, truncate at apex, narrowed 

 toward the base, strongly 3-lobed, each lobe with 2 longitudinal 

 dorsal ridges or wings with intervening depression. 



