Jones: Flora of Illinois, 31. Liliaceae 91 



17. Capsule obtuse or merely acute at the apex, about equalling or 

 shorter than the perianth. 

 18. Capsule about two-thirds the length of the perianth; sepals 



longer than the petals; wet ground. June-Aug 



/. brachycarpus Engelm. 



18. Capsule about equalling the perianth; sepals and petals 

 nearly equal. 

 19. Heads 1-50; branches of the inflorescence ascending; 



perianth 3-3.5 mm. long; wet ground. May-Aug 



/. acuminatus Michx. 



19. Heads more numerous; branches of the inflorescence 

 widely divergent; perianth 2-2.5 mm. long; swampy 

 ground, not common. June-July. [/. robustus sensu 

 auth., non Wats.] /. nodatus Coville 



2. LuzuLA DC. — Woodrush 



(Juncoides Adans.) 



1. Flowers solitary (rarely 2) at the tips of the slender ascending or loosely 

 spreading peduncles; inflorescence an umbel; perianth 3-4.5 mm. long, 

 pale brown, shorter than the capsule; wooded banks, rare. Starved Rock 

 State Park, G. N. Jones & G. D. Fuller 15746 L. saltuensu Fern. 



1. Flowers subsessile, crowded in small head-like clusters. 



2. Rays of the inflorescence erect or ascending; perianth 2-3 mm. long; heads 

 mostly cylindrical. 



3. Base of plant commonly with small corms; perianth about 2.5 mm. 

 long, slightly shorter than the capsule; stem-leaves 2-4 mm. wide; 



sandy soil in open woods, rare. Apr. -May. Kankakee Co., Hill 



L. bulbosa (Wood) Rydb. 



3. Plant not cormose; perianth about 3 mm. long, slightly exceeding the 

 capsule; stem-leaves 4-8 mm. wide; dry open woods, chiefly n.e. 111. 

 Apr.-May L. multiflora (Ehrh.) Lej. 



2. Rays of the inflorescence strongly divergent, unequal; plant without 

 corms; perianth 3-4 mm. long, much longer than the capsule; dry open 

 woods, rare. Apr.-May L. echinata (Small) Hermann 



31. Liliaceae Adans. — Lily Family 



l.Stem leafy (bearing one or more leaves). 



2. Flowers large, 4-10 cm. long; leaves alternate or whorled; fruit a capsule 



9. Lilium 



2. Flowers smaller. 

 3. Leaves whorled. 



4. Flowers several; leaves in usually two whorls, parallel-veined 18. Medeola 



4. Flower solitary; leaves in one whorl, net-veined 19. Trillium 



3. Leaves alternate. 



5. Flowers axillary or terminal, solitary or few, or in umbels. 



6. Leaves reduced to scales with filiform short branchlets appearing like leaves 

 about I cm. long in the axils; flowers axillary, small, greenish, nodding, 

 on slender, jointed pedicels; berry red, I -seeded 13. Asparagus 



