TERATOLOGY STUDIED IN THE TROPICS BY 
J. 0. COSTERUS AND J. J. SMITH J*. 
COMMUNICATED BY 
J. C. COSTERUS. 
With two plates XII and XIII. 
When, in the beginning of 1892, I went on a visit to Bui- 
tenzorg (Java), it was my intention to study amongst other 
subjects, more especially vegetable teratology. But when I 
arrived on the spot, my attention was drawn towards so many 
other phenomena, that were quite new to me, that only part 
of my wish could be fulfilled. 
Moreover it required no little time to make myself at home 
among the normal tropical plants and their organs, a work 
which must of course precede the study of deviations. I was 
however fortunate enough, when looking for abnormalities , to 
be guided by Mrss Treub and Burck and notably by Mr. J. 
J. Smith Jun., one of the head-gardeners of the Botanical Gar- 
dens. In this way I was enabled to bring to Europe some mon- 
strosities for closer examination. My paper on normal and ab- 
normal flowers of Grammatophyllum speciosum Blume, which 
appeared in Dodonaea 1894, deals with part of the material 
so collected. After my departure from Java Mr. Smith conti- 
nued to seek for aberrations and wrote to me about new cases he 
had come across. Several specimens came into my hand through 
his care, of other things he kindly sent drawings and descriptions. 
Ann, Jard. Bot. Vol. XIII, 1 7 
