108 FLORA OF THE UPPER SUSQUEHANNA. 



DIOSCOKEACE^E. 



DIOSCOREA L. 



D. villosa L. Wild Yam. Abundant, Clute. Frequent, Fenno. 

 Infrequent, Lucy. East Waverly, Millspaugh. Waverly, 

 Barbour. Elsewhere not noted. Found on the river banks 

 twining about the bushes. Leaves heart-shaped ; flowers green- 

 ish yellow, inconspicuous. 



SMILACE/C. 



SMILAX L. 



S. herbacea L. Carrion Flower. Common in thickets and 

 along fence-rows. Stem tall ; leaves ovate or roundish ; flowers 

 yellowish -green, in umbels. Very graceful and decorative in 

 appearance, but unapproachable because of the offensive odor 

 of the flowers. June. 



S. hispida Muhl. Green Briar. Cat Briar. Occasional in 

 moist woods and thickets. Stem green, armed with numerous 

 prickles ; leaves ovate, thin, deciduous. 



LILIACE/E. 



ALLIUM L. 



A. tricoccum Ait. Leek Somewhat rare. Near Cohocton, N. 

 v., — the only station, Lucy. Mouth of Apalachin creek; not 

 frequent, Fenno. Along the Chenango and Susquehanna; toler- 

 ably common, Clute. Oxford, Coville. Leaves broad and flat, 

 resembling those of Erythronium but unspotted, dying before 

 the flov\-ers appear; flowers ten or more on a scape ; bulb strong- 

 scented, edible. July. 



A. cernuum Roth. Nodding Wild Onion. Reported only from 

 the western part of our range where it is common. Barton, 

 Fenno. Valley of the Chemung, Lucy. Along the Susquehanna 

 from Athens to Tunkhannock, Clute. Found usually on dryish 

 banks. Scape bearing a few-flowered umbel of drooping, rose- 

 colored flowers; bulb tough, scarcely edible. July. 



