| 1. | His book Orchidacearum Genera et Species was never finished, but the volume containing the Habenaria, Disa, and Disperis genus was completed in 1901. Son compendium intitulé Orchidacearum Genera et Species ne fut jamais achevé, mais le volume à propos des genres Habenaria, Disa, et Disperis le fut en 1901. |