32 



S. nemoralis, Ait. GREY GOLDENEOD. 



Has a peculiar, almost prostrate way of growing in many 



places. C. & D. 

 S. Canadensis, L. 

 S. Canadensis, L., var. procera, Gray. 



On the commons between Gibbs's Pond and town. W. Deane- 

 S. serotina, Ait., var. gigantea, Gray. (S. serotina of Man.) 

 S. lanceolata, L. 

 S. tenuifolia, Pursh. 



Very common. 



CHRYSOPSIS, Nutt. 



C. falcata, Ell. GOLDEN ASTER. 

 Everywhere. 



PLUCHEA, Cass. 



P. camphorata, DC. SALT-MARSH FLEABANE. 



Common in the salt marshes ; very luxuriant about Coskaty 

 Pond. 



BACCHARIS, L. 



B. halimifolia, L. GROUNDSEL-TREE. 



Discovered at Coskaty by Mr. Nathaniel Tallant in 1849. At 

 that time the trees were healthy and rather numerous, but 

 there are few left now. Some twenty years ago there was a 

 clump at the Head of the Harbor, standing in the salt water 

 which had come up to their location apparently from the 

 washing away of the beach. They were nearly dead, and 

 probably no vestige of them now remains. 



AMBROSIA, Tourn. 

 A. artemisiaefolia, L. RAGWEED. 



XANTHIUM, Tourn. COCKLEBUR. 



X. Canadense, Mill., var. echinatum, Gr. (X. strumarium, 

 L., var. echinatum. Gray.) 

 Common near the ocean. 



