236 Rhodora [DECEMBER 
ASCLEPIADACEAE. 
ASCLEPIAS. 
A. amplexicaulis Sm. Dry sandy soil; well distributed from 
Dunstable to Duxbury, but seldom abundant. 
A. incarnata L., var. pulchra (Ehrh.) Pers. Low grounds and 
margins of ponds, common. 
A. phytolaccoides Pursh. Open woods and dry places; well dis- 
tributed but not abundant. 
A. purpurascens L. Dry open ground; apparently frequent from 
Braintree and the Blue Hills northward. 
A. quadrifolia Jacq. Dry open woods; frequent from Hingham 
and the Blue Hills northward. 
A. syriaca L. Dry fields and roadsides, common throughout. 
A. syriaca L., forma inermis Churchill. Prospect Hill, Waltham 
(W. Deane, Aug. 13, 1910); Dedham (S. Harris, Sept. 27, 1896). See 
Ruopnona xx. 206-7, 1918. 
A. tuberosa L. Dry sandy soil, rare; Haverhill, Danvers, Beverly, 
Westford, Bedford, Medfield; Hingham, according to Bouvé, Botany 
of Hingham, in History of Hingham, I, Part 1, 1893. 
A. verticillata L. Dry rocky soil and exposed ledges, rare, at 14 
stations, all within 15 miles of Boston. 
CYNANCHUM. 
C. NIGRUM (L.) Pers. Escaped from cultivation at Newburyport, 
Medford, Cambridge, Watertown and Brighton. 
C. H. KNowLTON Committee on 
WALTER DEANE Local Flora 
A PRELIMINARY REPORT ON THE DESMIDS OF 
CONNECTICUT. 
C. J. HYLANDER. 
(Continued from page 224.) 
STAURASTRUM Meyen 
**S. ACICULIFERUM (Borge) West. Hamden (Carter). 
S. AncTISCON (Ehrenb.) Lund. Nova Acta Reg. Soc. Sci. Upsala 
