1916) Flora of the Boston District — XXV 24g 



ing to this is reported in Robinson, Fl. Essex Co. 32, 1880. The same 

 form has been found at Scituate by Edward Wesley Cushman. 



DROSERACEAE. 

 DROSERA. 



D. longifolia L. Wet shores and bogs, frequent throughout. A 

 caulescent form is described and illustrated in Rhodora ii. 70, 1900. 

 D. rotundifolia L. Moist soil and wet sandy shores, common. 



PODOSTEMACEAE. 

 PODOSTEMUM. 



P. ceratophyllum Michx. On rocks in running water; .Charles 

 River, S. Natick (E. & C. E. Faxon, Aug. 3, 1880 et seq.); Stony 

 Brook [Weston ?], (J. IF. Blankinship, Oct. 18, 1894). 



CRASSULACEAE. 

 PENTHORUM. 

 P. sedoides L. Swampy places, common. 



SEDUM. 



S. acre L. Dry ledges, frequent. 



S. teiphyllum (Haw.) S. F. Gray. (S. purpureum Tausch. See 

 Rhodora xi. 40, 1909). Roadsides and yards, frequent. 



S. reflexum L. Pigeon Cove, Rockport (Mrs. Wheeler, 1876 et 

 als.). Concerning this species as an escape from cultivation, Prof. 

 Asa Gray wrote in the American Naturalist for October, 1876, on page 

 553, as follows: "This Old World Sedum, which is occasionally met 

 with in old-fashioned gardens, has established itself at Pigeon Cove, 



Essex County, Mass It occupies an old stone-heap, in a patch a 



yard or two in diameter, where ' Mrs. Sarah Ann Colburn says she 

 noticed it when she was a very little girl, at least sixty years ago.' .... 

 As the station of the plant is only a few rods distant from the ancient 



