MIDDLESEX FLOEA. 71 



M. Canadensis, L- Wild Mint. 

 Common. July-Sept. 



Ltcopus, L. 



L. Virginicus, L. Bugle-weed. 



Kather common. Aug.-Sept. 

 L. sinuatus, Ell. (L. Europseus, L., var. sinuatus, Man.) 



Common. July-Sept. 



Ptcnanthemum:, Michx. 



P. incanum, Michx. 



Lowell (Dr. C. W. Swan) ; Medford (C. E. Perkins) ; Winchester 



(Mrs. P. D. Richards) ; Pramingham (Rev. J. H. Temple) ; Concord 



(Mlnot Pratt) . Not very common. July-Aug. 

 P. elinopodioides, Gray. 



Concord (Walter Deane; specimen in herb. of). Aug.-Sept. Adv. 



from farther south. 

 P. muticum, Pers. 



Widely distributed, but not very common. Aug. 

 P. lanceolatum, Pursh. 



Jlelrose (R. Frohock) ; Winchester (Mrs. P. D. Richards) ; Con- 

 cord (Minot Pratt). Scarce. Aug.-Sept. 

 P. linifolium, Pursh. 



Reading (P. H. Gilsou). An unusually northern station for this 



species. Aug.-Sept. 



Thymus, L. 



*T. serpyllum, L. Cheeping Thyme. 

 Maiden (C. E. Perkins). Rare. Aug. Adv. from Eu. 



Satueeia, L. 



S. hortensis, L. Summek Savoet. 

 " Dumps," occasional. Adv. from Bu. 



Calamintha, Moench. 



*C. Olinopodivm, Benth. Basil. 

 Eraniingham (Rev. J. H. Temple) ; Concord (Minot Pratt). July. 

 Adv. from Eu. 



Hedeoma, Pers. 



H. pulegioides, Pers. Pennteoyal. 



Common. July-Sept. 

 H. hispida, Pursh. 



Reading (W. H. Manning). July. Adv. from the West. 



