82 MIDDLESEX FLORA. 



VINCETOXICUM, Moench. 

 V. NIGRUM, Moench. 



Watertown (C. E. Perkins); Cambridge (Man.); Medford and 

 Ashland (Rev. Thos. Morong). June. Nat. from Eu. 



PERIPLOCA, L. 

 *P. Grceca, L. 

 Concord, introduced by Minot Pratt. Aug. A native of Eu. 



OLEACE^E. OLIVE FAMILY. 



LIGUSTRUM, Tourn. 

 L. VULGARE, L. PRIVET. 

 Common. June. Nat. from Eu. 



FRAXINUS, Tourn. 



F. Americana, L. WHITE ASH. 



Common. Apr. -May. 

 F. pubescens, Lam. RED ASH. 



Occasional throughout the county. Apr-May. 

 F. sambucifolia, Lam. BLACK or WATER ASH. 



Medford, Weston, Framingham and Ashby (L. L. Dame) ; Concord 



(Walter Deane) ; Tewksbury (Dr. C. W. Swan) . Not very common. 



Apr.-May. 



SYRINGA, L. 

 S. VULGARIS, L. LILAC. 



Along roadsides, near old houses. Often well established, of lower 



growth and smaller leaves than the cultivated plant. May-June. 



A native of Eu. For description, see Wood's Bot. and Fl. 



ARISTOLOCHIACE/E. BIRTHWORT FAMILY. 



As ARUM, Tourn. 



A. CANADENSE, L. WILD GINGER. 



Westford, locally established (Miss E. F. Fletcher) ; the Concord 

 plant was introduced from Vt. by Minot Pratt. May-June. 



NYCTAGINACE^E. FOUR-O'CLOCK FAMILY. 



OXTBAPHUS, Vahl. 



O. nyctagineus, Sweet. 

 Cambridge (C. E. Perkins). June-Aug. Adv. from the West. 



