100 
Miss Margaret Slosson. After calling attention to the com- 
a 
leaf-hairs. Citations were given from the recently published 
first part of Mr. Carl Christensen’s ‘ Monograph of the Genus 
Dryopteris,” in oe ch characters of both scales and leaf-hairs 
are employed in delimiting the subgenera. The diversity of 
almost surely sometimes mistaken for one another, the certain 
pear to be constant and have always been found to be cor- 
absolutely necessary, when describing a species, to furnish exact 
and detailed descriptions or illustrations of the leaf’s trichomes, 
of whatever kind. 
“Grasslands of the Montaine and Subalpine Zones of the 
Rockies,” by Dr. P. A. Rydberg. The paper presented by Dr. 
pia will appear soon in ee Bulletin of the Torrey Botanical 
Club 
A. B. Stout, 
Secretary of the Cae 
NOTES, NEWS AND COMMENT 
Professor H. H. Whetzel, of Cornell University, recently spent 
several days at the Garden in the study of herbarium material of 
Botrytis: 
