B< SCHES INSTITUT 
D IVERSITAT KIEL 
-Br.Wulff- 
The Director, 
The Botanic Gardens, 
Singapore / Straits Settlements. 
x jo 4 
rk _' 
th 
January 5 , 1939 
Dear Sir, 
I am occupied with a cytological investigation of Acorus Calamus 
in the course of which it turned out that a comparison with tropic, fruit¬ 
hearing exemplares of the species v^ould he desirable. Proi. lischler tola ms 
that he saw fruiting plants of Acorus Calamus in the Singapore Gardens about 
30 years ago. - If you are still possessing such plants I would greatly appre¬ 
ciate receiving a) a small quantity of fruits, h) some fresh pieces of rhizome, 
and c), if possible, some root-tips (about 12-20) fixed in Navashin's solution 
(10 parts of 1 fo chromic acid, 1 part glacial acetic acid, 4 parts of 4 (jfo for¬ 
malin, mixed immediately before use). 
I would be greatly obliged to you of I could get this material by 
vour kindness and I may assure you oi my deep sense of gratefulness in advance. 
L' 1 ^ 
lours very truly 
S7'^/2 * 
H.D.Sulff 
