1948 retail price list : cacti and succulents - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.G. Taylor, 1948)

1997 IUCN red list of threatened plants (1997)

Års-berättelse om botaniska arbeten och upptäckter ... - Kungl. Svenska vetenskapsakademien. (Tryckt hos P.A. Norstedt & söner, 1837)

About orchids; a chat - Boyle, Frederick, 1841 -1914 (Chapman and Hall, 1893)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 1997)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 2010)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 2012)

Actes de la Société linnéenne de Bordeaux - Société Linnéenne de Bordeaux. (The Society, 1898)

Aguas continentales y diversidad biológica de México - Arriaga Cabrera, Laura (Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO), 2000)

Alegria! : [catalogue of seeds and plants] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Alegria Association, 1905)

Allgemeine Gartenzeitung - Otto, Friedrich, 1783 -1856 (1835)

Allgemeine Gartenzeitung - Otto, Friedrich, 1783 -1856 (1836)

Allgemeine Gartenzeitung - Otto, Friedrich, 1783 -1856 (1837)

Allgemeine Gartenzeitung - Otto, Friedrich, 1783 -1856 (1839)

Allgemeine Gartenzeitung - Otto, Friedrich, 1783 -1856 (1840)

Allgemeine Gartenzeitung - Otto, Friedrich, 1783 -1856 (1841)

Allgemeine Gartenzeitung - Otto, Friedrich, 1783 -1856 (1847)

Allgemeine Gartenzeitung - Otto, Friedrich, 1783 -1856 (1849)

Allgemeine Gartenzeitung - Otto, Friedrich, 1783 -1856 (1850)

Allgemeine Gartenzeitung - Otto, Friedrich, 1783 -1856 (1854)

Allgemeine Gartenzeitung - Otto, Friedrich, 1783 -1856 (1855)

Allgemeine Gartenzeitung - Otto, Friedrich, 1783 -1856 (1856)

Amateur orchid cultivators' guide book - Burberry, H. A. (Blake and Mackensie, 1899)

The amateur orchid cultivators' guide book - Burberry, H. A. (Blake & Mackenzie, 1894)

The amateur orchid cultivators' guide book - Burberry, H. A. (Blake & Mackenzie, 1900)

The American florist : a weekly journal for the trade - American Florists Company. (American Florist Company, 1886)

The American florist : a weekly journal for the trade - American Florists Company. (American Florist Company, 1887)

The American florist : a weekly journal for the trade - American Florists Company. (American Florist Company, 1888)

The American florist : a weekly journal for the trade - American Florists Company. (American Florist Company, 1889)

The American florist : a weekly journal for the trade - American Florists Company. (American Florist Company, 1890)

The American florist : a weekly journal for the trade - American Florists Company. (American Florist Company, 1891)

The American florist : a weekly journal for the trade - American Florists Company. (American Florist Company, 1892)

The American florist : a weekly journal for the trade - American Florists Company. (American Florist Company, 1893)

The American florist : a weekly journal for the trade - American Florists Company. (American Florist Company, 1894)

The American florist : a weekly journal for the trade - American Florists Company. (American Florist Company, 1895)

The American florist : a weekly journal for the trade - American Florists Company. (American Florist Company, 1896)

The American florist : a weekly journal for the trade - American Florists Company. (American Florist Company, 1899)

The American florist : a weekly journal for the trade - American Florists Company. (American Florist Company, 1900)

The American florist : a weekly journal for the trade - American Florists Company. (American Florist Company, 1902)

The American florist : a weekly journal for the trade - American Florists Company. (American Florist Company, 1903)

The American florist : a weekly journal for the trade - American Florists Company. (American Florist Company, 1904)

The American florist : a weekly journal for the trade - American Florists Company. (American Florist Company, 1905)

The American florist : a weekly journal for the trade - American Florists Company. (American Florist Company, 1906)

The American florist : a weekly journal for the trade - American Florists Company. (American Florist Company, 1907)

The American florist : a weekly journal for the trade - American Florists Company. (American Florist Company, 1908)