David van Royen
D.Royen; D. van Royen
December 30, 1727 – April 19, 1799
botanist, physician, university teacher
Dutch botanist and physician (1727-1799)
http://www.wikidata.org/entity/Q938934
https://en.wikipedia.org/wiki/David_van_Royen [View]
Dutch Republic
Has identified specimens collected by:
Collected Poaceae