Results 51 to 60 of about 598 (143)

Reassessing the temporal evolution of orchids with new fossils and a Bayesian relaxed clock, with implications for the diversification of the rare South American genus Hoffmannseggella (Orchidaceae: Epidendroideae)

open access: yesBMC Evolutionary Biology, 2010
Background The temporal origin and diversification of orchids (family Orchidaceae) has been subject to intense debate in the last decade. The description of the first reliable fossil in 2007 enabled a direct calibration of the orchid phylogeny, but ...
Verola Christiano F   +2 more
doaj   +1 more source

Chloroembryogeny of orchids

open access: yesФактори експериментальної еволюції організмів, 2013
Purpose. Analyze the phenomenon of orchids chloroembryogeny and set its biological significance. Methods. Used standard biotechnological methods and techniques of light microscopy. Results.
R. V. Ivannikov
doaj  

Zygostates alleniana (Orchidaceae: Epidendroideae: Cymbidieae: Oncidiinae): Floral structure related to pollinatio

open access: yesAnales del Jardín Botánico de Madrid, 2014
The genus Zygostates Lindl. (Orchidaceae) comprises about 20 species of small Neotropical epiphytic plants, represented in its southernmost limit by the species Z. alleniana.
Natalia E. Gómiz   +2 more
doaj   +1 more source

O gênero Coryanthes (Orchidaceae-Stanhopeinae) no estado do Mato Grosso, Brasil

open access: yesRodriguésia
Resumo Devido à existência de lacunas sobre o conhecimento do gênero Coryanthes no Mato Grosso, é apresentado o estudo taxonômico das espécies encontradas no estado, além de comentários taxonômicos, ecológicos e históricos.
Mathias Erich Engels   +2 more
doaj   +1 more source

In vitro conservation and acclimatization of Epidendroideae (Orchidaceae) from Sergipe, Brazil

open access: yesBioscience Journal, 2018
Orchids are known for the beauty, exuberance, and color of their flowers and therefore represent one of the most coveted ornamental plants. Due to their high commercial value, several illegal practices of removal and commercialization have led to the ...
Thays Saynara Alves Menezes   +5 more
doaj   +3 more sources

Nomenclatural changes in Liparis-complex (Malaxidinae, Epidendroideae)

open access: yesActa Societatis Botanicorum Poloniae, 2008
Explanation of taxonomic and nomenclatural problems of few taxa of Lipans sensu lato are compiled. Taxonomic status of Disticholiparis is confirmed. New nomenclatural combinations within Stichorkis are proposed.
openaire   +2 more sources

THE ORCHIDS OF VIETNAM ILLUSTRATED SURVEY. Part 4. SUBFAMILY EPIDENDROIDEAE (tribes Arethuseae and Malaxideae)

open access: yesTurczaninowia, 2015
The article continues serial publication of illustrated critical taxonomical survey of orchids in the flora of Vietnam. This part of the monograph includes taxonomical treatment of tribes Arethuseae and Malaxideae of the largest subfamily, Epidendroideae,
L. V. Averyanov
doaj  

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