(Source: Flora Malesiana ser. 1, 1: Cyclopaedia of collectors)

career:

Father of E.R. Jacobson (see there), managing partner of the commercial firm of Jacobson-van den Berg & Co., besides consul of Italy, Würtemberg and Hessen, at Semarang (Centr. Java).

collections:

Sent material of ‘Widjoja Kesoema’ (Pisonia sylvestris) in vinegar to Herb. Leiden [L], in 1867. The material probably came from Noesa Kambangan, as the species is not found on the mainland of Java. He sent zoological material in liquid to Europe too.

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