Shafer : Vascular Flora of Allegheny County. 109 



DISPORUM Salisbury. 

 FROSARTESDon. 

 f D. lanuginosum (Michaux). Hairy disporum. 



STREPTOPUS Michaux. 

 § S. amplexifolius (Linnceus). Clasping twisted-stalk. 



CLINTONIA Rafinesque. 



* C. umbellulata (Michaux). White clintonia. 



MEDEOLA I.innteus. 



* M. Virginiana Linnaeus. Indian cucumber-root. 



TRILLIUM Linnaeus. 



* T. sessile Linnaeus. Sessile wake-robin. 



* T. nivale Riddell. Early wake-robin. 



Lower St. Clair Township, Sawmill Run, at Jackson's Hollow, 

 April, 1886. 



* T. grandiflorum (Michaux). Large-tlowered wake-robin. 



* T. erectum Linnaeus. Fetid wake-robin. 



The white form is less common. 



§ T. undulatum Willdenow. Painted wake-robin. 

 T. erythrocarpum Michaux. 



MELANTHACE^ R. Brown. 



BUNCH-FLOWER FAMILY. III-18. 



UVULARIA Linnteus. 



* U. perfoliata Linnaeus. Perfoliate bellwort. 



* U. grandiflora J. E. Smith. Large-flowered bellwort. 



