1924] Flora of the Boston District, —K LIV 55 
more material, an expert specialist in ferns could do no better. An 
excellent pteridologist was wasted in William Stout.! 
Gray HERBARIUM 
REPORTS ON THE FLORA OF THE BOSTON 
DISTRICT,—XLIV. 
COMPOSITAE. 
ASTER. 
A. acuminatus Michx. Low woods; frequent, but no reports south 
of Norwell, Rockland and Norwood. 
A. amethystinus Nutt. Moist ground, rare; Beverly, Cambridge, 
Arlington, Belmont, Brighton; Westford, according to Dame & 
` Collins, Fl. Middlesex Co. 48, 1888. 
A. coMMUTATUS (T. & G.) Gray. Railway, Lowell Junction [Wil- 
mington| (J. R. Churchill, Sept. 27, 1884). Specimen in herb. J. R. 
Churchill. A western waif. 
A. cordifolius L. Low ground, common throughout. 
A. cordifolius L., var. polycephalus Porter. Open woods, common, 
Danvers (J. H. Sears, Sept. 20, 1884); Medford (Mrs. P. D. Richards, 
no date); Winchester (F. W. Grigg, Sept. 23, 1911); Cambridge (F. 
W. Grigg, Sept. 28, 1921). 
A. divaricatus L. Dry woods, very common throughout. 
A. dumosus L. Dry fields and pastures, very common throughout. 
A. dumosus L., var. coridifolius (Michx.) T. & G. Dry pasture, 
Hingham (C. H. Knowlton, Sept. 9, 1916); Dover (F. W. Hunnewell, 
Sept. 18, 1915); Ipswich (Wm. Oakes, no date); Tewksbury (no 
date). 
A. dumosus L., var. strictior T. & G. Damp border of South 
Reservoir, Medford (W. P. Rich, July 23, 1894); dry field, Chelmsford 
(C. H. Knowlton, Sept. 7, 1914); Stony Brook Reservation (N. T. 
Kidder, Aug. 16, 1919); dry pasture, Hingham (C. H. Knowlton, 
Sept. 9, 1916); dry fields, Sharon (J. A. Cushman, Aug. 23, 1909), 
1 The few facts here given are all that I have been able to find out about Mr. Stout. 
If any reader chances to possess further information it will be welcomed by me. 
I am indebted to Dr. George F. Eaton and to Prof. J. F. Collins for the loan of 
letters and other assistance in collecting information on some of the matters here 
touched upon. 
