LILIACEiE. (LILY FAMILY.) 347 



• • Stems from a short or creeping rootstock : fruit a reddish lobed berry : aeedi 



pendulous. 



15. Streptopus. Flowers apparently axillary, greenlsh-whlte or purpH*h. Anther* 



sagittate, cuspirlate, on short deltfjid on subulate tllanients. Lc^vrs clamping. 



16. Prosartes. Flowers in fascicles (1 to C-llowere<l) terniinalinj; the bniiicli.-i., whit« or 



greenish. xVnthers oblong, obtuse, on slender HlauienLs. Leavea w»Ui rx-ticuUtrJ 

 veiulets. 



III. Like the last, but perianth i>ersistent with nerve<l segraenta, stylet distinct, and cap- 

 sule septicidal (loculicidal in Xeruphylltttn). 



• Flowers usually polygamous : anthers 1-celled, iMilUte on opening: Htema leafy: leave* 



not rigid nor equitant 



17. Veratnun. Stem tall and stout, from a thick motiitwk. Inflorescence panicalale, 



pubescent Leaves broad, strongly nerved and plimto. 

 IS. Zyg-adenus. stem from a coatt<l bulb. InHoifScfnco a raceme or Hubj^nlculata, 

 glabrous : perianth-segments glandular at base. Leaves linear. 



♦ ♦ Flowers dioecious, on naked pedicels, in a simple elongated raceme : stem verj* leafy : 



leaves thin, oblanceolate. 



19. ChamSBlirilun. Flowers white: segments narrowly linear-spatulate, e<iualliiiR tlje 



stamens, which are shorter and abortive in the pistillate flowers, bee-ls margined, 

 and winged at each end. 



* * * Flowers perfect, on bracteolate pedicels, in a simple nceme ; anthers 2-celled, in- 



trorse : seeds numerous : stem leafy : leaves equitant 



20. Tofleldia. Flowers involucrate with 8 scarious united bractlets. btyle* short. 



Seeds appendaged. 



* ♦ * * Flowers perfect, on naked pedicels, in a simple dense raceme : styles reflexed : 



seeds few : stem very leafy : leaves very narrow, rigid and rough-edged. 



21. Xerophyllum. Flowers white, on long pedicels ; segments 5 to T-oerved. Seed* 



not appendaged. 



L ALLIUM, L. Onion. 



Periantb-segments l-nerved, usually somewhat sprea^ling. Ovules 2 at the 

 base of each cell. Capsule ofteu crested. Seeds obovoid and wrinkled. 

 § 1. Bulbs cespitose, narrowhj oblong and crowning a more or kss persistent rhi- 

 zome : spathe mostly 2-valved: leaves several, linear: scaj)e UreU, 

 * Leaves terete, hollow. 



1. A. Schoenoprasum, L. Scape stout : umbel suboa|)itate : flowers 

 rose-color ; segments 4 or linos long, acuminate : stamens im-iutlfd : capsule 

 not crested. —From Canada and the Great Lakes to the Wiml Kivcr Moun- 

 tains of Wyoming, Oregon, and Ala.ska. 



* * Leaves flat or channelled. 



2. A. cernuum, Roth. Scape slender, ^ to 2 feet high» //vm a bulb: 

 leaves 1 to 4 lines wide : vinbcl open, nodding : flowers numerous, on very Kleiuler 

 pedicels, rose-colored or white ; segments 2 or 3 lines long, broad and acutish : 

 stamens and style exscrted : capsule crested. — From New Mexico to Oregon, 

 British Columbia, and the Alleghany Mountains, 



3. A. brevistylum, Watson. Scape 1 to U feet high, /mm a stout rhi- 

 zome: leaves 2 to 4 lines wide: spathe 1-valved : umbel rreet,jnr-flowereid ; 

 pedicels 6 to 12 lines long : flowers deep rose-color ; setfments i to 5 linrs long, 

 narrow, lon/j-acuminafe, nmrhj twiec longer than the stamens awl stvl/' : capsuU 

 not crested.— Bot. King Exped. v. 350. N. W. Wyoming to S. Utah. 



