]> [Author: German nurseryman; imported cacti] Eponymy: Acanthocephala graessneri (K. Schumann) Guiggi (2012). Example of Names published: Echinocereus melanocentrus Graessner in Spezialgeschäft Kakteen Sukk. Samenliste 6. 1937 (invalid) Botany Graessner, Richard Graessner, Richard R. Graessner Graessner Richard Graessner Grässner, Richard Graeßner, Richard Gräßner, Richard 1875 1942