Notes on the Flora of Java, IV

The “Notes on the Flora of Java” I and II published in Bull. Jard. hot. Buitenz., Sér. III, Vol. XVI², 107—110 (1939) and in Blumea V, No. 3, 490—525 (1945). Next to these the present paper has two other precursors published under different titles but serving entirely the same purpose, which exists in the publishing of all the observations (including new species and nomenclatorial changes) made during the preparation of a Flora of Java under the direction of Dr C. A. Backer (see introduction to Notes II).