1918] Report of Committee on Floral Areas 185 
its varieties seek out wet places, especially near the coast. It is 
apparently rare in Vermont and inland Maine, but follows the coast 
east to Machias Seal Island. The varieties are so recently known 
that separate ranges, if existent, cannot easily be assigned. 
CoMPLEX GROUPS. 
Ranunculus aquatilis, var. capillaceus of Gray’s Manual, 7th ed., 
consists of two or more species. Thalicirum polygamum is likewise a 
complex group, so no conclusions can be drawn about these two at 
present. 
GENERALLY DISTRIBUTED SPECIES. 
Anemone quinquefolia Clematis virginiana 
Actaea alba Coptis trifolia 
«  yubra Ranunculus abortivus 
¢ recurvatus 
These species are so evenly distributed as to require little comment. 
Of them, however, only Anemone quinquefolia and Ranunculus abortivus 
have been reported from Cape Cod. It may be noted that they are 
all species of rich woods or moist ground. ? 
(To be continued.) 
C. H. Know tron, 
W. S. RLEY, JR., 
C. A. WEATHERBY. 
TSUGA CANADENSIS (L.) CARR. 
Ivar TIDESTROM. 
THE correct name for our common, northern hemlock has been 
recently discussed in a paper! by Mr. Farwell, wherein he attempts 
to prove that the correct name should be Tsuga americana (Miller) 
Farwell. 
Mr. Rehder ? insists upon the retention of the name T. canadensis 
for various reasons. 
The writer does not wish to enter into any “intricate” discussion 
of a more or less vague synonymy — for those who wish to know the 
1 Bull. Torr. Club 41: 621-629, 1914. 2 Raopora 17:59. 1915. 
