64 
birch, with mountain ash (Sorbus americana) and other species 
of more boreal affinities. Manifestly by reason of its limitation 
to steep mountain slopes this element does not exhibit its best 
expression in a climax society. 
F. Arctic element, occupying the summit of Mt. Marcy and 
several other of the highest peaks. Canadian species are present 
—the trees chiefly balsam, red spruce, becoming from one to six 
ue 
oville, Vaccinium uliginosum L. and Diapensia lapponica L. 
Fred J. Seaver spoke of the ee of pa aa the genus 
n ith the rules of tl code of 
American Flora. the type of the genus Peziza falls outside 
of the order Pezizales as at present used, both the name of the 
id 
Unless some of the special provisions in the rules could be found 
to apply to this case, the type of Peziza ought to be selected ar- 
bitrarily in order to keep the name for the large cup-fungi as it 
has been used even in remote times. 
A. B. Stout, 
Secretary of the Conference 
