FLORA OF WASHINGTON AND VICINITY. 121 



Iris verna, L. Spring Ikis. Dwarf Iris. 

 Near Bladeusbiirg. First lialf of May. 



tiris cristata, Ait. Crested Dwarf Iris. Ladies' Calamas. 



Spout Run, Va., near the "Three Sisters"; High Island. Second week in May. 



Pardanthus Chinensis, Ker. Blackberry-Lily. 

 July; fruit, October. 



t Sisyrinchium anceps, L. (See Proc. Am. Acad., vol. xxii, p. 277.) Blue-eyed 

 Grass. 

 April, May. * 



t Sisyrinchium mucronatum, Michx. (See Proc. Am. Acad., vol. xxii, p. 277.) 



First of May. 



DIOSCOREACEiE. 



Yam Family. 



tDioscorea villosa, L. Wild Yam-root. 



First half of May. 



SMILACEiB. 



Smilax Family. 



t Smilax rotundifolia, L. Greekbrier. C atbrier. 



First half of May. 



t Smilax glauca, Walt. 



Middle of May. 

 Smilax hispida, Muhl. 



Li',st of May or first of June. 



t Smilax Pseudo- China, L. 



Many large vines appear to be wholly without flowers or fruit. Large tubers as 

 light as cork with long, black roots projecting from them, curiously Huggestive of 

 huge spiders, were found along the Sligo Creek, washed out of the banks where the 

 vines grow. Last week in May; fruit in July. 



t Smilax herbacea, L. Carrion-Flower. 

 Last half of May. 



Smiilax tamnifolia, Michx. 



May. 



LILIACE^. . 



Lily Family. 



Allium tricoccum. Ait. Leek. 



High Islands, and islands above. First of July ; Iruit, September. 



Allium cernuum. Roth. Wild Onion. » 



In the bud and early flower, the whole upper part of the stem droops ; as the 

 plant matures this curvature is gradually converted into a short turn at the summit, 

 or proper nodding. First of July. 



Allium Canadense, Kalm. Wild Garlic. 



June, 

 t Allium vineale, L. Field Garlic. 



June, July. 



