£> 4 - 5/0 
f 
o. 
I^th December 
6 
• / 
Dear Professor* Lam, 
I wonder if you would oe so kind as to compare 
some specimens (1C sheets) of Macaranga, that I am 
sending you, with some specimens of Blume’s which I 
imagine must be in the Leiden herbarium. 
I discover that JJ.Smith and Pax are mistaken 
in reducing vapa canga cornu ta Muel 1 .Ajig. to h . triloba 
(R^inw.) Muell.Apg. It seems that Smith referred 
the female plants of M. cornuta to M,tril oba and hence 
the muddle. In Malaya we have two common species, 
one called M . Hu 1 le 11 1 1 ^ whioh I take to be M.c orn uta ^ 
and one called V , . tri lo ca. 
M. liullettii has fruits with 4.-5 horns, occasi onally 
only 2 - 5 , and the fruits are in peduncled heads. It 
has long peduncled male inflorescences with ovate- 
acuminate, often dentate, oracts. It agrees exactly 
with I * , cornuta . It is very variable in the leaf, 
however, which may oe simple or ^-lobed (sapling or 
lower branches). 
jv'L triloba according to Mueller Apg. has fruits 
without horns. Such is the case with our malayan 
specimens of M .triloba in which, moreover, the female 
inflorescences are much more branched than in M. cornuta . 
The male inflorescences of M. trilob a have short 
peduncles and small, cucullate oracts. 
i ) 
Professor H.J.Lam, 
Rijfcs Herbarium, 
former s tee g, 
r5 /n 
Leiden. HOLLAND 
