]> Botany Raven, Peter Hamilton, Dietrich, Werner & Stubbe, Wilfried Raven, Peter Hamilton, Dietrich, Werner & Stubbe, Wilfried P. H. Raven, W. Dietrich & W. Stubbe P. H. Raven, W. Dietr. & Stubbe P. H. Raven, W. Dietrich & Stubbe Raven, P. H., Dietrich, W. & Stubbe, W.