106 MIDDLESEX FLORA. 



S. mucronatum, Michx. (S. Bermudiana, L., var. mucronatum.. 

 Man.) 



Wilmington (F. S. Collins) ; Chelmsford (Dr. C. W. Swan). Much 

 the less common species. May-July. 



DIOSCOREACEiE. YAM FAMILY. 



DiOSCOEBA, Plum. 



*D. villosa, L. Wild Yam Root. 

 " Woods, Concord Turnpike" (Bigelow's Fl. Bost.) Not since re- 

 ported. July. 



SMILACEyC. SMILAX FAMILY. 



Smilax, Tourn. 



S. rotundifolia, L. Geebn Beiab. 



Common. June-July. 

 S. glauca, Walt. 



Weston (L. L. Dame). An extreme northern station. July. 

 S. herbacea, L. Caeeion-flowek. 



Common. June. 

 *S. {herbacea, L-, var. peduncularis, A. DC. (var. pulver- 



ulenta, Man.) 



Maiden (F. S. Collins) ; Natick (Austin Bacon) ; Marlboro (Mrs. 



A. M. Staples). June. 



LILlACEyC. LILY FAMILY. 



Teillidm, L. 

 *T. sessile, L. 



Concord, introduced from the West by Minot Pratt. June. 

 *T. nicuroatum, Beck. 



Concord, introduced from Wisconsin by Minot Pratt. June. 

 *T. grandiflorum, Salisb. Laege-floweeed Trillium. 



Concord, introduced by Minot Pratt. June. 

 T. erectum, L. Purple Trillium:. Birtheoot. 



Townsend (Miss H. E. Haynes and C. W. Jenks) ; Ashby (L. L. 



Dame). Concord, introduced from Wachusett by Minot Pratt.. 



Bare. May. 

 T. cernuum, L. Nodding Trillium. Wake-Robin. 



Common. May-June. 



