Later he participated in examining and describe the Commelinaceae of Georg August Schweinfurth's Abyssinian plant collections and also worked on several plant families, such as Cyathea junghuhniana in Leiden.
Later he participated in examining. Later he describe the Commelinaceae of Georg August Schweinfurth's Abyssinian plant collections. Later he also worked on several plant families. This was such as Cyathea junghuhniana in Leiden.