Un reciente análisis filogenético de cuatro regiones de ADN para ca. 354 especies de la subtribu Maxillariinae indican fuertemente que el género Maxillaria, en su circunscripción tradicional, es altamente polifilético. ...

The establishment in Costa Rica of the great naturalist Charles H. Lankester in the 19th century brought a tremendous increase in the knowledge of Costa Rican Orchidaceae. His desire to leave the collections kept at his ...

We estimated phylogenetic relationships within Anathallis and related genera using Bayesian analyses of nrITS sequence data. The genus is biphyletic in the molecular trees. A novel generic concept, Lankesteriana, is proposed ...

We present and illustrate a new species of Myoxanthus from Costa Rica, closely related to M. scandens. We present descriptions and illustrations of both species. The new species, Myoxanthus sotoanum differs from M. scandens, ...

The new species Stellilabium smaragdinum is described and illustrated from the montane oak forests of the Cordillera de Talamanca, Costa Rica. Among the species of Sect. Taeniorhachis, S. smaragdinum may be recognized for ...

Lepanthes gerardensis from north-central Costa Rica is described and illustrated. It is most similar to the Mexican L. ancylopetala Dressler, from which it differs in shorter habit, petiolate leaves with broadly elliptic ...

The word impact comes from the Latin impactus, to push against. It is defined by the Merriam-Webster dictionary as, among others, “to have a direct effect on”. In the realm of scientific publishing, impact is measured in ...