The GLM herbarium collection houses vascular plant specimens from Namibia collected between 1909 and 1913 by Fritz Schäfer. Duplicates at Berlin-Dahlem (B) were partly destroyed during World War II, and further duplicates are known only in few cases at Zurich (Z) and Cape Town (NBG). At GLM we traced 27 type specimens of 20 validly published names, for eight of these names no further type material is known to have been preserved elsewhere. We typify the names involved and designate Schäfer specimens preserved at the herbaria GLM or B, respectively, as lectotypes for Abutilon schaeferi, Anthericum apicicolum, A. diphyllum, A. glutinosum, Aster schaeferi, Gnidia suavissima, Hermannia seitziana, Lachenalia klinghardtiana, Lebeckia cinera var. schaeferi, Oldenlandia schaeferi, Pelargonium grandicalcaratum, P. squarrosum, Solanum schaeferi and Viscum schaeferi, and a Dinter specimen preserved at NBG for Pelargonium mirabile.