Now showing items 1-10 of 47
Further disentangling of a taxonomic puzzle: Maxillaria Ramosa, Ornithidium Pendulum, and a new species, O. Elianae (Orchidaceae)
(Harvard Papers in Botany, 2008)
McIllmurray and Oakeley (2004) demonstrated that the name Maxillaria ramosa has been misapplied to Ornithidium pendulum since 1967, and possibly corresponds to M. cassapensis. We refer Ornithidium ochraceum, O. loefgrenii, ...
Phylogenetic reassessment of Specklinia and its allied genera in the pleurothallidinae (Orchidaceae)
The phylogenetic relationships within Specklinia (Pleurothallidinae; Orchidaceae) and related genera are re-evaluated using Bayesian analyses of nrITS and chloroplast matK sequence data of a wide sampling of species. ...
Masdevallia luerorum (Orchidaceae: Pleurothallidinae), a new species from Costa Rica
Masdevallia luerorum from the southern Pacific region of Costa Rica is described and illustrated. It resembles M. lata, but differs in the single flowered inflorescence, the shorter sepals, the broad and cylindrical sepaline ...
Recent origin and rapid speciation of Neotropical orchids in the world's richest plant biodiversity hotspot
The Andean mountains of South America are the most species‐rich biodiversity hotspot worldwide with c. 15% of the world's plant species, in only 1% of the world's land surface. Orchids are a key element of the Andean flora, ...
Lepanthes aures‐ursinae and L. vertebrata spp. nov. (Orchidaceae: Pleurothallidinae) from Panama
Panama is still far from completing its orchid flora inventories, where large genera such as Lepanthes (Pleurothallidinae) reveal novelties regularly. Here, we describe and illustrate two new species of Lepanthes. Lepanthes ...
Pollination of Habenaria tridactylites (Orchidaceae: Orchidinae) on the Canary Islands
We investigated the pollination of Habenaria tridactylites, an endemic orchid of the Canary Islands. The entirely green, widely open flowers have a long spur containing nectar. We carried out fieldwork, a molecular clock ...
Phylogenetic comparative methods improve the selection of characters for generic delimitations in a hyperdiverse Neotropical orchid clade
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 ...
Lepanthes elusiva – a New Species of Lepanthes (Orchidaceae: Pleurothallidinae) from Tapantí Area in Cartago, Costa Rica and a Glance to Other Species of the Genus in a Small Area Around the Río Grande de Orosi in Costa Rica
Lepanthes elusiva – eine neue Art der Gattung (Orchidaceae: Pleurothallidinae) aus der Tapantí-Region in Cartago, Costa Rica, und ein Streifblick auf einige andere Arten in einem kleinen Gebiet entlang des Río Grande de Orosi in Costa Rica
With about more than 120 species, Lepanthes is one of the most species-rich orchid groups represented in Costa Rica. Here, we describe and illustrate a new species from the Tapantí National Park, a megadiverse area in ...
Two novelties in genus Platystele (Orchidaceae: Pleurothallidinae) from Costa Rica
Two new species of Platystele allied to P. oxyglossa complex are described from Costa Rica. Platystele carl-lueriana can be distinguished from P. catiensis and P. oxyglossa by the compact inflorescence that barely exceeds ...