Author: Lorentz, P. [G.] and G. Niederlein
Title: Informe oficial de la Comision Científica agregada al Estada mayor general de la Expedicion al Rio Negro (Patagonia). Realizada en los meses de Abril, Mayo y Junio de 1879, bajo las órdenes del General D. Julio A. Roca. Entrega II. Botánica. Enumeracion sistemática de las plantas colectadas durante la expedition.
Description: Buenos Aires, Ostwald y Martinez, 1881. Folio (32.6 x 24.4 cm). 123 pp. [172-294]; 12 engraved plates with explanatory text leaves. Early 20th-century brown cloth with gilt title on the spine. Original printed front wrapper bound in. = A rare, well-illustrated work by the Argentine botanists of German descent Paul Günther Lorentz (1835-1881), and Gustav Niederlein (1858-1924). It includes the descriptions and illustrations of many new and poorly known species of Patagonian plants. Old repair to the first text leaf with text loss to a few lines in the introduction part; closed marginal tear to the first few leaves, otherwise a very good, complete copy. Stafleu and Cowan, 4997.

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