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(D. ) O.E.Schulz, ?in Urb., Symb. Antill. 6: 236. 1909.?, 1909.

(D. ) O.E.Schulz, ?in Urb. Symb. Antill.  6: 160. 1909.?, 1909.

(D. ) O.E.Schulz, O.E.Schulz,, and O.E.Schulz, ?Symb. Antill. (Urban) 6: 247. 1909.?, 1909.