320 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 



thickets; occasional in the valley. Alford; Great Barrington 

 (Walters); New Marlboro; Sheffield, 

 var. mollis (Fernald) Heller. — Thicket, Stockbridge. 



AJUGA. Bugle Weed. 



A. GENEVENSis L. — Established on roadside banks, Pittsfield 

 (Lincoln). 



BLEPHILIA. 



B. ciliata (L.) Raf. Wood Mint. — Roadsides and meadows; 

 occasional in the southern and western part of the valley. Stock- 

 bridge; West Stockbridge; Sheffield. 



B. hirsuta (Pursh) Benth. — Occasional. Wet roadside. West 

 Stockbridge; swampy place in woods, Sandisfield (Walters). 



COLLINSONIA. Horse Balm. 



C. canadensis L. Rich-weed. — Rich damp woods; common in 

 the valley. Altitude 1600 feet, New Marlboro. 



GALEOPSIS. Hemp Nettle. 



G. Teteahit L. Common Hemp Nettle. — Shaded brook, Han- 

 cock (Churchill). 



Calyx-teeth in fruit 17 to 5 to 11 mm. long. Corolla large, about 

 2 cm. long (vid. Rhodora, 12: 142, 1912). 



var. bifida (Boenn.) Lej. & Court. — (G. Tetrakit Man. ed. 7 in part; 

 md. Rhodora, 12: 142, 1910.) 



Waste places; common. 



Calyx-teeth in fruit 5 to 8 mm. long. Corolla about 14 to 16 mm. 

 long and much more slender than in the species. 



HEDEOMA. Mock Pennyroyal. 



H. HISPIDA Pursh. — Dry fields and limestone ridges; occasional in 

 the southern part of the valley and possibly indigenous. Great 

 Barrington; Sheffield (Walters); New Marlboro (Walters). 

 I H. pulegioides (L.) Pers. American Pennyboyal. — Dry wo6ds, 

 fields and stony hillsides ; common in the valley. 



ISANTHUS. False Pennyroyal. 



I. brachiatus (L.) BSP. — Dry limestone hills; occasional in the 

 vaUey. Williamstown (Churchill); Sheffield. 



