A. Schuiteman. Revision of the genus Bromheadia / J. Kruizinga, H.J. Van Scheindelen and E.F. De Vogel. Taxonomic revision of Acanthephippium / S.S. Thomas. Revision of the Orchid genera Chrysoglossum, Collabium, Diglyphosa, and Pilophyllum (subtribe Collabiinae) / W. Van Der Burgh and E.F. De VogelRijksherbarium / Hortus Botanicus1997
E.F. De Vogel ; drawings by C.L. Chan and A. Satiri. A revision of the Orchid genera Ania, Hancockia Mischobulbum, and Tainia / H. Turner ; drawings by M. NakajimaRijksherbarium / Hortus Botanicus1992