32 
same variety (hence having, generally speaking, the same heredi- 
tary constitution) reacted in a similar way as regards winter 
hardiness, no matter what their source. In other words, there 
appears to be no indication that a woody or perennial herbaceous 
plant can change its degree of hardiness, without changing its 
genetic makeup. 
imts Project 
By Grorce M. REED 
A statement regarding the Beardless Iris project established 
at the Brooklyn Botanic Garden in cooperation with the Ameri- 
can Iris Society was published in the last annual report. During 
the past year continued progress has been made in carrying out 
the plans inaugurated. The season proved unusually favorable 
r abundant bloom of the Japanese varieties, and consequently it 
was possible to obtain good material for use in making varietal 
descriptions. A considerable number of new varieties were 
added to the collection during the year. The sources of these 
were as follows. The asterisk (*) indicates a purchase; 
other items were received by gift. 
a 
ie) 
ail 
* Barr & Sons, England 
ree eT ey eo Tr 53 varieties 
Elliott Nursery Co., Pittsburgh, Pa...............-- 2 
Henry A. Dreer, Philadelphia, Pa................... 12 a 
Julius Roehrs Co., Sages N. a a Ae eerie Ta 10 he 
* Vilmorin, Andrieux & Cie, France..........eceeeees 29 i 
W. Atlee Burpee Co., Philadel ae UE es aspect ee 5 B 
Phe Siberian and other Beardless ty] 
es also grew quite satis- 
factorily during the season, 
and abundant bloom was secured. 
Consequently, it was possible to check up on the proper identif- 
cation of many varieties and species. During the year a num- 
ber of additions were made. Plants of J. longipetala were 
donated by Mr. John B. Wallace, Jr.. New Haven, Conn., and 
Mr. Robert Wayman, Bayside, Long Island, and also poate of 
I. dichotoma by Mr. H. S. Jackson, Lafayette, Ind. J. laevigata 
was purchased from Mr. J. A. Kemp, Little Silver, N. J. Si- 
berian varieties were received as follows: 
