Alderw.

Cornelis Rugier Willem Karel van Alderwerelt van Rosenburgh (Java Island, 23 December 1863 - The Hague, 1 March 1936) was a Dutch botanist.

The standard author abbreviation Alderw. is used to indicate this individual as the author when citing a botanical name. Many older texts instead use the abbreviation "v.A.v.R."

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