Contributions toward the orchid flora of Panamá /

by Schweinfurth, Charles 1890-1970
Published 1937

Orchids of Perú /

by Schweinfurth, Charles 1890-1970
Published 1958

Orchidaceae of the Guayana highland /

by Schweinfurth, Charles 1890-1970
Published 1967

Orchidaceae Peruvianae II /

by Schweinfurth, Charles 1890-1970

Orchidaceae Peruvianae IV /

by Schweinfurth, Charles 1890-1970

Orchidaceae Peruvianae V /

by Schweinfurth, Charles 1890-1970

Orchidaceae Peruvianae VI /

by Schweinfurth, Charles 1890-1970

Orchidaceae Peruvianae VII /

by Schweinfurth, Charles 1890-1970

Orchidaceae Peruvianae VIII /

by Schweinfurth, Charles 1890-1970

Orchidaceae Peruvianae IX /

by Schweinfurth, Charles 1890-1970

Botanical exploration in Venezuela I : Orchidaceae /

by Schweinfurth, Charles 1890-1970

Orchidaceae Peruvianae I /

by Schweinfurth, Charles 1890-1970

Some Peruvian Maxillarias /

by Schweinfurth, Charles 1890-1970

New or noteworthy species of orchids from the American tropics /

by Ames, Oakes 1874-1950
Published 1924

New or noteworthy orchids /

by Ames, Oakes 1874-1950
Published 1930

The orchids of Mount Kinabalu British North Borneo /

by Ames, Oakes 1874-1950
Published 1920

The genus Epidendrum in the United States and Middle America /

by Ames, Oakes 1874-1950
Published 1936

Microspermae, Orchidaceae, I : comprende los géneros Habenaria, Pogonia, Vanilla, Epistephium, Elleanthus, Sobralia, Gomphichis, Prescottia, Pseudocentrum, Cranichis, Ponthieva, S...

by Mutis y Bosio, José Celestino Bruno 1732-1808
Published 1963

Microspermae, Orchidaceae, II : comprende los géneros Masdevallia, Restrepia, Restrepiella, Barbosella, Lepanthes, Lepanthopsis, Pleurothallis, Brachionidium, Malaxis y Liparis, d...

by Mutis y Bosio, José Celestino Bruno 1732-1808
Published 1969

Native orchids of North America north of Mexico /

by Correll, Donovan Stewart 1908-1983
Published 1950