196 Rhodora, [Jury 
Rhododendron canescens, Michx. This species is found in New 
Hampshire, Vermont, Massachusetts and Rhode Island as far as my 
examination has gone. I have studied the following specimens : — 
New HAMPSHIRE, Walpole (M. L. Fernald), Jaffrey (E. F. Williams): 
Vermont, Manchester (Mrs. W. H. Graham & Mary A. Day), 
Lake Dunmore (Zzra Brainerd), West Rutland (E. F. Williams): 
MassacHUsETTS, Concord (H. Mann), Ashburnham (S. Harris), 
Montague (J. R. Churchill), Mt. Toby, Leverett (J. R. Churchill), 
Pittsfield (W. Oakes): RuopE IstAND, Providence (G. Thurber). 
These states should each be represented by a cross in my list. 
Rhododendron nudiflorum, Torr. This species is found in Massa- 
chusetts, Rhode Island and Connecticut as far as I have been able 
to find out. I have examined specimens from MASSACHUSETTS, 
Dedham (Æ. A. Young), Norwood (Æ. F. Williams): RHODE 
IsLAND, Warwick(/. F. Collins), Providence(G. Thurber, J. F. Collins): 
Connecticut, Bridgeport (Æ. ZZ. Eames), Southington (Z. Andrews). 
These three states should each be represented by a cross in my list. 
In studying these species it has been impossible to see the types, 
and I have accordingly availed myself of the best and most reliable 
descriptions that I can find in which the important characters are 
clearly contrasted. These are in the Illustrated Flora of Britton and 
Brown. In all the cases above mentioned the specimens bear out 
well the characters as drawn, but I have seen several in which there 
is an admixture of the characters of the two species which I think it 
worth while to cite. In specimens from Townsend, Massachusetts ; 
Cranston, Rhode Island (J. F. Co//ins), and Southington, Connecticut 
(C. H. Bissell), the plants are nudiflorum with the flowers of canescens, 
having the tubes densely glandular. In the Herbarium of Brown 
University there is a specimen from the Herbarium Olneyanum, 
with no other locality than Rhode Island, exhibiting the same. pecul- 
iarities. In a specimen from near Bellefont, Rhode Island (7. 7. 
Collins), the plant is canescens but the pedicels are strigose, a charac- 
ter belonging to udiflorum, the pedicels of canescens being glandular. 
In a specimen from Southington, Connecticut (Z. Andrews) the 
leaves of nudiflorum are combined with the densely glandular fruit 
and pedicels of canescens. 
Such a marked interchange of characters in these two species as 
is indicated in the above specimens presents a subject worthy of 
much careful consideration. Their validity as distinct species is 
