Hermann Otto Sleumer
Hermann Otto Sleumer (February 21, 1906 in Saarbrücken – October 1, 1993 in Oegstgeest) was a Dutch botanist of German birth. The plant genera Sleumerodendron Virot (Proteaceae) and Sleumeria Utteridge, Nagam. & Teo (Icacinaceae), are named for him.
The standard author abbreviation Sleumer is used to indicate this person as the author when citing a botanical name.