38 SPECIES BLANCOANAE 
ceived in current collections during the time the exsiccata has 
been in preparation, but without a sufficient number of dupli- 
cates. Naturally it has not been possible to secure material 
illustrating those species described by Blanco or by Llanos whose 
status is now entirely uncertain or unknown, but fortunately 
the list of doubtful species is now very greatly reduced. 
Most of the material utilized in the preparation of the exsic- 
cata “Species Blancoanae” has been collected by employees of 
the Bureau of Science, many sets by myself, some by Eugenio 
Fénix, but a much larger number by Maximo Ramos. I have 
had the cordial codperation of Doctor F. W. Foxworthy, of the 
Bureau of Forestry, and of other employees in that Bureau in 
securing specimens to represent special species. A few sets have 
kindly been supplied by Mr. C. A. Wenzel, of Jaro, Leyte; Mr. 
D. L. Topping and Mrs. Mary Strong Clemens, of Manila; by 
Doctor F. C. Gates, formerly of the College of Agriculture at 
Los Bafios, Laguna Province; by Mr. Rafael Lete, San Fernando, 
Union Province; and by Father M. Vanoverbergh, of the Belgian 
Mission, Mountain Province, Luzon. The assistance granted by 
these individuals, but for which the exsiccata must have been 
much more incomplete than it is, is gratefully acknowledged. — 
