BOTANISKA INSTITUTIONEN 
UPPSALA 
-2- 
If we now examine the type-specimen of Thunberg's Rademachia integra in herb* 
-A my 
Thuriberg, it will soon be obvious that on the herbarium-sheet your 5eth species 
have been fixed together I send you a(copy of the v/hole sheet. Prom this it is 
clear that a and b exactly correspond with Thunberg's description of Rademachia 
e? 
S 
/{fir 
integra * They are the type of R* integra* It is quite evident that both a and b 
(the S receptacle) have the long stiff yellow hairs so characteristic for the 
i, t-t. AkV Hv<v»u^' L V 
Chempedak, further the peduncle ($) is not dilatedj. The leaf of a corresponds 
also very well with the leaves of the Chempedak which you have sent us. c—e on 
the other hand must belong to the jack-fruit. Especially d and e show that the 
d receptacles are quite different from a and b. Also their leaves correspond 
with those of the jack-fruit. Thus these two plants have been fixed together on 
the same herbarium-sheet. In former times botanists were not so careful regarding 
labels and especially not regarding collecting localities* Thuhberg has apparently 
collected Rademachia integra in Java and Amboina (Cfr Thunberg 1781 p. 412.) 
In his collections he had also the jack-fruit from Ceylon, but in his first 
description of R. integra (177^) be does not quote Ceylon as locality. Later, 
■ ^ k 
ffl&cy years after Thunberg came home, he had all his collections from South Africa, 
Ceylon, East Indies and Japan mounted for the herbarium and probably a mistake 
h&e then been made and a piece of the Chempedak from Batavia has boon fixed 
together with the jack-fruit from Ceylon on the same paper. Thunberg had^ namely 
made a note on the back of the herbarium sheet "e Ceylona Thunberg". There, 
probably Chempedak does not occur* 
The type-specimen a and b clearly correspond with Thunberg's description of 
R adema chia integra (Sitodium m acro c arp on ) "pilis longis hirsuti" and Thunberg 
quotes the Mala y name Tsjampedahal^jThus you are quite right if you say that the 
Chempedak must be named" Artocarpus integra (Thunb.) Comer nov* comb* 
The jack-fruit must have a new name and it is your task to finijout that l 
That the herbarium sheet with the two species together cannot force us to give 
the name'Integra' or 'integrifolia' to the jack-fruit clearly appears from the 
very clear description of Thunberg and also Linne fil. The diagnosis speaks for 
the Chempedak and when also the original of Thunberg's Rademachia integra shows 
the same it seems to me that you are quite right when you give a name to the 
^jack-fruit and reserve the old species name integra for the Chempedak. 
I bope that we may keep the nice material of the two species you sent us. 
You may keep and publish the photos I send you. The assistant Mr C. G* Aim has 
taken them. Je should be very glad to have a photo of a whole Chempedak—tree if 
you could take such a photo in Singapore. 
If you want further particulars about this matter please let me know. 
I have not seen E. D. Merrill, An Interpretation of Rumphius'Herbarium 
Amboinense (Manila Bureau of Science Ho. 9* 1917)* Perhaps something about this 
matter is to be had therel 
Sincerely yours 
4hu k. ft 
