1911] Flora of the Boston District,— VIII 29 
lected in the same locality, on the edge of a spring in a railway ditch 
by C. E. Faxon, Sept. 26, 1878 (specimen in Gray Herb.), by H. A. 
Young, September, 1879 (specimens in Gray Herb. and herb. Essex 
Co.), and by W. P. Rich, Sept. 21, 1890 (specimen in herb. W. P. 
Rich). This station is now undoubtedly extinct. 
C. Grayii Torr. Sand dunes, Plum Island, Essex Co. (W. P. 
Conant, Sept. 26, 1878, and others since). Never reported at any 
other station north of Plymouth, which is 55 miles away. 
C. Nuttallii Eddy. Along the entire coast, chiefly in brackish 
marshes. Found also at Winter Pond, Winchester. Collected by 
John A. Lowell in Roxbury, Sept. 17, 1846. 
C. ovutarts (Michx.) Torr. “West Boston Flats” (C. W. Swan, 
Sept. 25, 1880. Specimen in herb. N. E. Bot. Club). Introduced, 
but undoubtedly long since extinct. 
C. rivularis Kunth. Moist soil; undoubtedly common, but re- 
ported from only nine eastern and northern towns. 
C. strigosus L. Wet sunny places, very common throughout. 
C. strigosus L., var. capitatus Boeckl. West shore of Spot Pond, 
Stoneham (W. P. Rich, Sept. 20, 1894); sandy shore, Winter Pond, 
Winchester (H. H. Bartlett, Aug. 26, 1905; G. G. Kennedy, Aug. 10, 
1893, and Oct. 20, 1901); West Cambridge (Wm. Boott, Nov. 5, 1865); 
pond border, South Framingham (7. Morong, September, 1886). 
C. strigosus L., var. compositus Britton. Probably introduced 
in wool and cotton waste near Goulding’s Mills, Malden (F. S. Collins, 
Sept. 25, 1887); Green Lodge, Canton (G. G. Kennedy, Aug.'8, 1887); 
Monponsett Pond, Halifax (Wm. Boott, Sept. 23, 1870). — 
C. strigosus L., var. robustior Kunth. Moist soil, Winter Pond, 
Winchester (C. H. Knowlton, Sept. 15, 1906). 
DULICHIUM. 
-D. arundinaceum (L.) Britton. Wet places, usually in standing 
water. Not reported from extreme western and southern portions; 
abundant elsewhere, and probably throughout. 
C. H. KxowLTON 
J. A. CUSHMAN Committee on 
WALTER DEANE Local Flora. 
A, K. Harrison 
