(331) 
mens were added to the collection and to the public exhibit 
of the local rusts. Work was continued on destructive 
insects and one trip made to Long Island to inspect the 
elm trees on the grounds of the Sage Foundation Home 
Company which were thought to be dying from a fungus 
disease, but which were found to be victims of the elm 
borer. A few days were spent in Pennsylvania collecting 
specimens in collaboration with Pennsylvania State Col- 
lege, Cornell University, and Syracuse University. 
Mr. Percy Wilson, Associate Curator, devoted con- 
siderable time to Rerereys and distributing collections 
of tropical American plants, especially those from the 
West Indies and South America. He has also received 
for determination from specialists of other institutions 
many specimens of tropical American plants on which 
parasitic fungi occur. His duties as docent continued 
three afternoons each week, and he also had charge of 
many of the special students and classes that availed them- 
selves of the opportunities thus offered by the Garden. 
In this way over 1,200 students came under his personal 
instruction. 
Dr. Francis W. Pennell, Associate Curator, in addition 
to curatorial duties, continued his studies on the Scrophu- 
lariaceae. During April and May he collected this and 
related groups in the western Gulf States and later in the 
year he published papers on the hulariaceae of the 
southeastern States, the central Rocky Mountain States, 
and Colombia. Studies of this family in other parts of 
the New World are in preparation, and he began mono- 
graphing the tribe Gratioleae for North American Flora. 
A bibliographic index, preliminary to the study of the 
related families, Solanaceae, Bignoniaceae, and Gesneri- 
aceae, was commenced. Dr. Pennell had especial charge 
of the local herbarium, and also delivered lectures, in the 
garden course and elsewhere, on the Southeastern United 
States and Colombian floras. 
