24 SIR DIETRICH BRANDIS—AN ENUMERATION 
In conclusion, I desire to thank all those who have furnished 
me with the materials for these researches. From India I have 
received valuable material in alcohol, through Mr. Hill, Offi- 
ciating Inspector General of Forests; from Mr. J. 5. Gamble, 
Conservator of Forests and Director of the Imperial Forest School, 
Dehra Dun; from Dr. King, Superintendent of the Botanic 
Garden, Calcutta; and from Mr. Duthie, Superintendent of the 
Botanic Garden, Saharunpore. From Burma, Colonel Seaton, 
formerly Conservator of Forests in the Tenasserim Division, and 
Mr. Oliver, Conservator of Forests, Upper Burma, have sent me 
most valuable specimens. Most important contributions from 
Ceylon, seed and seedlings in alcohol, with dried specimens, I 
owe to the kindness of Mr. A. F. Broun, Conservator of Forests 
in that island. Mr. Broun has also placed at my disposal his 
sketches representing germinating seeds in different stages, 
of Dipterocarpus, Doona, Vatica, and Vateria. Dr. Warburg, 
Berlin, has generously entrusted his Philippine collections to me 
for examination; and Mr. Holmes, Curator of the Museum, 
Pharmaceutical Society, Great Britain, has furnished me with 
valuable material for examination, and has permitted me to 
compare the specimens of the herbarium in his charge with 
those preserved at Kew. To Mr. George Brebner I am in- 
debted for the anatomical drawings, from sections prepared by 
me, on Plate I. Mr. C. B. Clarke, President Linnean Society, 
has most kindly assisted me in the matter of literary references. 
Lastly, I have to thank the authorities at the Royal Herbarium 
and Botanical Museum, Kew, and at the British Museum, who, 
with unvarying kindness, have permitted me to examine the 
rich collections in their charge. It gives me great pleasure 
to thank all these kind friends for the valuable help they have 
given me on this occasion. 
I. DIPTEROCARPE X. 
Diprerocarrts, Gaertn. f. 
Large trees, with tall regularly shaped trunks; some species 
gregarious, others scattered in mixed forests. Stipules large, 
amplexicaul, leaving conspicuons obliquely ascending scars. 
Secondary nerves mostly straight, joined by parallel and reti- 
culate tertiary nerves. In bud the two halves of the leaf are 
folded upon each other, and the sections contained between two 
