Revision der Orchidaceen von Deutsch-Samoa
Published in Repertorium novarum specierum regni vegetabilis, in 1911, in volume 9, issue 7-9, pages 98-112
Date published:1911
Published in Repertorium novarum specierum regni vegetabilis, in 1911, in volume 9, issue 7-9, pages 98-112
Date published:1911