Dalla Torre, C.G. de & H. Harms — Genera Siphonogamarum ad systema Englerianum conscripta.

1900-1907 2 volumes (complete) vii, 921 p., 4to, text later half cloth, index contemporary half calf. First six pages of the text volume with multiple repairs, last page in photocopy. Index volume much used and thus much worn, spine partly detached, several pages (especially first and last ones) crudely repaired with tape. Library stamp. A working copy of the scarce original edition.