BUNCH-FLOWER FAMILY. 



2. Zygadenus elegans Pursh. Glaucous Zygadenus. (Fig. 977.) 







Zypadtnus elcgans PuTsh, Fl. Am. Sept. 241. 1814. 

 jSfelanthium glaucum Nutt. Gen. i: 232. 1818. 

 Zygadenus glaucits Nutt. Journ. Acad'. Phila. 7: 56. 



Plant very glaucous, bulb ovoid, about i' 

 long, its coats membranous. Stem slender, 

 &-3 tall; leaves 2"-7" wide, keeled, the lower 

 4 / -i2 / long, the upper much shorter; bracts 

 lanceolate, rather large, green or purplish; in- 

 florescence a simple raceme or a large panicle, 

 ometimes i long, open, its branches slender, 

 cending; flowers greenish, 8 // -io // broad; per- 

 anth-segments oval or obovate, obtuse, united 

 elow and adnate to the base of the ovary, bear- 

 ng a single large obcordate gland just above the 

 lort claw; capsule oblong, nearly i' long, ex- 

 eding the perianth. 



In moist places. New Brunswick to Alaska, south 

 ) Vermont, New York. Missouri, and in the Rocky 

 lountains to New Mexico. June-Aujf. Ascends 



i 4000 ft. in the Black Hills. 



3. Zygadenus Nuttallii A < .ray) 

 S. Wats. Xuttall'v /yx.nU-!-. 

 (Fig. 97 



Amianllihim \nltallii A. Gra\ \ 4 



123- i^.v- 



Zyzadcnus \ttttallii S Wat- Proc. Am. Ac 

 279. 1879. 



Light green, scarcely glaucous, ttem I e -2 high. 

 Bulb large, coated; leaves 3 Mi" wide, shorter 

 than the stem, strongly conduplicate, the upper 

 very short; inflorescence racemose or paniculate 

 bracts membranous, scarious, shorter than the 

 slender pedicels; flowers mostly perfect, about 6" 

 broad; perianth -segments oval or ovate, obtuse, 

 free from the ovary, thin, short-clawed, bearing a 

 roundish spot-like gland; capsule 4"-6" long. 



On prairies, Kansas and Colomdo to Tc*a Majr- 



Junc. 



4. Zygadenus venenosus S. Wats. Poi- 

 sonous Zygadenus. (Fig. 979.) 



7n;adenus venenosus S. Wats. Proc. Am. Acad. 14: 

 279. 1879. 



Pale green, stem slender, 6 r -2 tall, from a small 

 coated bulb. Leaves conduplicate, roughish, 2"- 

 3" wide, shorter than the stem, the upper small 

 and distant; inflorescence a simple or somewhat 

 branched raceme, 2 x -4 r long in flower, elongating 

 in fruit, the slender pedicels longer than the scar- 

 ious lanceolate bracts; flowers yellow or yellowish, 

 polygamous, about 4" wide; perianth-segments 

 ovate or elliptic, obtuse or acutish, short-clawed, 

 free from the ovary, bearing a roundish glan.l 

 with an irregular margin; fruiting pedicels erect; 

 capsule longer than the perianth. 



South Dakota and Montana to British Columbia, 

 south to Nebraska, Utah and California. May-June. 



