Cássio van den Berg (born 1971) is a Brazilian botanist, noted for work in orchid classification and evolution, especially great changes in the generic circumscriptions of ornamental orchids in the genus ''

Cattleya ''Cattleya'' () is a genus of orchids from Costa Rica south to Argentina. The genus is abbreviated C in trade journals. Description Epiphytic or terrestrial orchids with cylindrical rhizome from which the fleshy noodle-like roots grow. Pseu ...

'', based on DNA studies for the subtribe

Laeliinae Laeliinae is a Neotropical subtribe including 40 orchid genera, such as ''Brassavola'', ''Laelia'' and ''Cattleya''. The genus ''Epidendrum'' is the largest within this subtribe, containing about 1500 species. This is followed by the genus ''En ...

Career

Based on DNA studies studies, he proposed a fusion of the genera ''

and

Sophronitis ''Cattleya'' () is a genus of orchids from Costa Rica south to Argentina. The genus is abbreviated C in trade journals. Description Epiphyte, Epiphytic or terrestrial orchids with cylindrical rhizome from which the fleshy noodle-like roots ...

'', and also included in this genus the Brazilian species of ''

Laelia ''Laelia'' is a small genus of 25 species in the orchid family (Orchidaceae). ''Laelia'' species are found in areas of subtropical or temperate climate in Central and South America, but mostly in Mexico. ''Laelia'' is abbreviated ''L.'' in the ...

''. In

, the studies pointed out to the separation of subtribe

Ponerinae Ponerinae is a subfamily of ants in the Poneromorph subfamilies group, with about 1,600 species in 47 extant genera, including ''Dinoponera gigantea'' - one of the world's largest species of ant. Mated workers have replaced the queen as the fun ...

, and the transfer of ''

Dilomilis ''Dilomilis'' is a genus of orchids, (family Orchidaceae), consisting of five species in the Greater Antilles The Greater Antilles ( es, Grandes Antillas or Antillas Mayores; french: Grandes Antilles; ht, Gwo Zantiy; jam, Grieta hAntiliiz) ...

'' and '' Neocogniauxia'' to

Pleurothallidinae The Pleurothallidinae are a neotropical subtribe of plants of the orchid family (Orchidaceae) including 29 genera in more than 4000 species. Naturally occurring species of this subtribe are among the more popular orchids of horticulturalists, es ...

. He also worked in the taxonomy of other orchid genera, such as ''

Acianthera ''Acianthera'' is a genus of orchids native to the tropical parts of the Western Hemisphere, especially Brazil.de Melo, M. C., Borba, E. L., & Paiva, E. A. S. (2010)Morphological and histological characterization of the osmophores and nectaries ...

'', '' Baptistonia'', ''

Bulbophyllum ''Bulbophyllum'' is a genus of mostly epiphytic and lithophytic orchids in the family Orchidaceae. It is the largest genus in the orchid family and one of the largest genera of flowering plants with more than 2,000 species, exceeded in number onl ...

'', ''

Cymbidium ''Cymbidium'' , commonly known as boat orchids, is a genus of evergreen flowering plants in the orchid family Orchidaceae. Orchids in this genus are epiphytic, lithophytic, terrestrial or rarely leafless saprophytic herbs usually with pseudobulbs ...

'', ''

Encyclia :''Encyclia'' is also a Greek term for the Codex Encyclius ''Encyclia'' is a genus of orchids. The genus name comes from Greek ''enkykleomai'' ("to encircle"), referring to the lateral lobes of the lip which encircle the column. It is abbreviated ...

'', ''

Galeandra ''Galeandra'', abbreviated as Gal in horticultural trade, is a genus of 37 known species of orchids native to South America, Central America, the West Indies and Florida. Species Species currently accepted as of June 2014: #'' Galeandra arundi ...

'', ''

Isabelia ''Isabelia'' is an orchid genus formed by three tiny species and one natural hybrid, spread from the Northeast of Brazil to Argentina, which are closely related to the genus ''Constantia (plant), Constantia''. During more than a century ''Isabeli ...

'' and '' Pleione''. In 2004, he described a new genus of

, '' Adamantinia'' Van den Berg & C.N.Gonç. Currently he is full professor and curator of the Laboratory of Plant Molecular Systematics. at

Universidade Estadual de Feira de Santana The State University of Feira de Santana ( pt, Universidade Estadual de Feira de Santana, UEFS) is a public institution of higher education in Brazil, based in the city of Feira de Santana, Bahia. Until the 1990s, was also the only university in t ...

Bahia Bahia ( , , ; meaning "bay") is one of the 26 Federative units of Brazil, states of Brazil, located in the Northeast Region, Brazil, Northeast Region of the country. It is the fourth-largest Brazilian state by population (after São Paulo (sta ...

Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...

. He has published over 250 botanical names and combinations, especially on orchids.IPNI search for Cássio van den Berg
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References

{{DEFAULTSORT:Berg, Cassio van den 1971 births Living people