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Mostrando ítems 11-16 de 16
Pollinaria: up close and personal
(2011-06)
Pollinaria are complex structure, in many cases composed of different elements that originate from different parts of the reproductive organs of the plant.
Phylogenetic comparative methods improve the selection of characters for generic delimitations in a hyperdiverse Neotropical orchid clade
(2019)
Taxonomic delimitations are challenging because of the convergent and variable nature of phenotypic
traits. This is evident in species-rich lineages, where the ancestral and derived states and their gains
and losses are ...
Two new species of Pleurothallis (Orchidaceae: Pleurothallidinae) from Costa Rica in the P. phyllocardia group
(2017-07-17)
Two new species of Pleurothallis subsection Macrophyllae-Fasciculatae from Costa Rica are described and illustrated, and their relationships discussed. Pleurothallis pudica, from the central Pacific ...
Phylogenetic reassessment of Acianthera (Pleurothallidinae: Orchidaceae)
(2016-12-31)
The phylogenetic relationships within the Acianthera affinity are re-evaluated using Bayesian analyses of nrITS and chloroplast matK sequence data. Emphasis is made on species from the Antilles, Central America and the ...
A new Muscarella from Tapanti National Park, Costa Rica
(2021)
A new species of Muscarella from Costa Rica, is described and illustrated. Muscarella tapantiensis most resembles M. coeloglossa but differs in the longer pedicels (3-5 vs. 1-2 mm), the shorter (2.5-2.8 vs. 3.75 mm), connate ...
Reproductive biology of Phragmipedium longifolium and floral anatomy associated with pollinator attraction in the genus
(2019-09)
Phragmipedium is a genus with 21 species restricted to the tropics and subtropics from Central and South America. As it is a genus capable of producing seeds from
both self- and cross-pollinated flowers, it is an ideal ...