20 Spn'//o Flora of Ohio. 



g. Leaves 2, oblong, long sheathing petioles, raceme 1-sided in . 



S- Leaves linear, flowers blue or greenish-white h . 



h. Flowers light-blue, G-parted, long racemose Camassia. 5 



h. Flowers greenish-white, G-parted, sub-corymbose Ornithofialum. G 



h. Flowers deep-blue, small, urn-shaped, in a dense raceme Muscari. 7 



i. Much branched, the thread-like branchlets appear as leaves Asparagus. 8 



k. Perianth 6-parted, stamens 6, ovary 3-celled Vaifiiera. 9 



k. Perianth 4-parted, stamens 4, ovary 2-celled Unifolium. 10 



1. Flowers axillary, on bent pedicels, anthers sagittate, acute Disporum. 11 



I. Flowers few in umbels (or solitary], anthers oblong, obtuse Siieptopus. 12 



ni. Stems leafy, flowers axillarj', perianth cylindrical Polygonal iini. 13 



m. Leaves 2, oblong, raceme, 1-sided, flowers bell-shaped Convallaria. 14 



m. Leaves in 2 whorls, flowers umbellate or solitary Medeola. 15 



II. Leaves 3 in a whorl at the summit of the stem Tiilliiim. IG 



1. Genus CHAM-^-LIR'-l-UM. — Smooth, stem rather slender, from 

 a bitter thick root-stock; spiked raceme 4-12 in. long. 



Cham-ae-lir'-i-um lu'-te-um (L.) Gr. {C. caroliniamnn\\'\\\t\..) Blazing 

 Star; Devil's-bit. — Leaves lanceolate, the lowest spatulate; stem 1-4 ft. 



2. Genus U-VU-LA'-RI-A. — Stems from a root-stock ; leaves sessile- 

 clasping or perfoliate; perianth narrow campanulate. 



U-vu-la'-ri-a per-fo-li-a'-ta L. Bellwort. — Glaucous throughout, stem 

 terete ; l-^) leaves below the fork, perfoliate, oblong or ovate-lanceo- 

 late, glabrous. 



U-vu-la'-ri-a gran-di-flo'-ra Sm. Bellwort. — Not glaucous; stem terete, 

 naked or a single leaf below the fork; leaves as in the last, but whitish 

 pubescent beneath. 



U-vu-la'-ri-a ses-sil-i-fo'-li-a L. {Oakesia scssilifolia Wats.) Bell- 

 wort. — Stem acutely angled; leaves lance-oblong, acute at each end, 

 pale, glaucous beneath, sessile or partly clasping. 



3. Genus AL^-LI-UIVI. — Strong scented and ptingent, stemless herbs; 

 the leaves and scapes from a bulb ; spathe scarious, 1-3 valved. 



A. Leaves elliptic-lanceolate , 



Al'-li-um tri-coc'-cutn Ait. Wild Leek. — Scape 4-12 in. high, umbel 

 erect, many-flowered; leaves 5-9 in. long, 1-2 in. wide, appearing in 

 early spring and dying before the flowers are developed. 



A. Leaves linear, flat, channeled or terete. 



