1912] Flora of the Boston District,— XIV 77 
C. laxiflora Lam., var. gracillima Boott. Low woods, Cambridge 
(M. L. Fernald, June 10, 1891). 
[C. LAXIFLORA Lam., var. LATIFOLIA Boott. There have been 
several reports of this variety from the district, but all the specimens 
so named which the committee has examined prove to be vars. patuli- 
folia or varians. Var. latifolia apparently reaches its eastern limit 
in western New England.] 
C. laxiflora Lam., var. leptonervia Fernald. Swampy woods, 
Boxford (J. A. Cushman, June 7, 1907); Waverly [Belmont] (Wm. 
Boott, June 9, 1861). 
C. laxiflora Lam., var. patulifolia (Dewey) Carey. Well dis- 
tributed. 
C. laxiflora Lam., var. varians Bailey. Occasional near Boston 
(12 stations). 
C. lenticularis Michx. Merrimac River, Dracut and Lowell (C. 
W. Swan, July 20, 1882). 
C. LEPORINA L. Dry soil chiefly of pastures or roadsides; Long 
Island, Boston: Harbor (Wm. Boott, July 6, 1871 and July 1, 1873, 
earliest reports); also West Newbury, Wenham, Lynnfield, Lexington, 
Hyde Park, Norwood, Dover, Framingham. 
C. leptalea Wahlenb. Wet woods, meadows and bogs; well dis- 
tributed throughout. 
C. limosa L. "Ina pond," Tewksbury (B. D. Greene, prior to 1836 
— see Fernald, Ruopona, xiii. 246, 247); wet sphagnum bog, west 
side of Long Pond, Tewksbury (Wm. Boott, July 8, 1863, M. L. 
Fernald & F. F. Forbes, June 17, 1911); boggy shore, rather plenty, 
Sucker Pond, Framingham (A. J. Eames, May 29, 1908, and Aug. 5, 
1911); bog by Ponkapaug Pond, Canton (J. R. Churchill, W. Deane, 
G. G. Kennedy & E. F. Williams, May 26, 1894). 
C. livida (Wahlenb.) Willd. Boxford (E. & C. E. Faxon, June 20, 
1878 and May 8, 1889); Salix candida swamp, Boxford (J. Robinson, 
May 30, 1890); calcareous meadows, Lynnfield (M. L. Fernald, 
June 16, 1907); Essex Co. (Wm. Oakes, no date). 
C. lupulina Muhl. Wet places, common. 
C. lupulina Muhl. var. pedunculata Dewey. Frequent through- 
out. 
C. lupulina Muhl. X lurida Wahlenb. Medford Branch R. R. 
(Wm. Boott, July 15, 1866). 
C. lupulina Muhl. X ?. Near North Braintree (W. P. Wilson, 
