45 
as a memorial to any person (e.g., Linnaeus) not already com- 
memorated in the Garden and within the limitations indicated 
above. This plan became effective in 1932. Part of the payment 
is used to provide a suitable label, the remainder to enrich the 
collection of living plants. As will be seen from the following 
list, several trees have been thus endowed. 
— 
It is our hope to have all the Schwedler Maples on the Esplanade 
endowed in this way. Five have been so designated. A total of 
nineteen trees have been presented to date, as follows, in chrono- 
logical order. 
List oF MrmoriaL AND Grrr TREES 
SWEET GuM (Liguidambar Styraciflua) 
Planted September 12, 1912, by Prof. Hugo de Vries, the great 
Dutch botanist, author of the mutation theory of evolution, one 
of the founders of modern plant physiology, director of the 
Hortus Botanicus, Amsterdam. At the time of his death he was 
considered by many as the greatest living botanist. Local Flora 
Section. 
Turie TREE (Lirtodendron Tulipifera) 
Planted October 16, 1913, by Prof. Adolf Engler, director of 
t 
the Engler and Prantl system of plant classification. The Syste- 
— 
1e Botanical Garden and Museum at Berlin, and co-author of 
matic Section of the Brooklyn Botanic Garden is arranged ac- 
cording to a modification of this system. Local Flora Section. 
Witte OaK (Quercus alba) 
Planted May 9, 1916, by Mr. Alfred T. White, at the Second 
Annual Spring Inspection of the Garden. At the time of his 
death, January 29, 1921, Mr. White was generally considered 
as the leading citizen of Brooklyn. He was the “father” of the 
Brooklyn Botanic Garden and its greatest benefactor. Donor 
of the Japanese Garden, the Conservatory Plaza Lily Pools, and 
one-third the cost of the completion of the buildings; under- 
writer of research in plant pathology. White Oak Circle, Sys- 
tematic Section. 
