A spontaneous hybrid between Aristolochia gorgona and A. grandiflora appeared at Lankester Botanical Garden, Costa Rica, where plants of both species were cultivated in close proximity. This indicates that geographic ...

With over 200 species, the orchid tribe Sobralieae is a major constituent of the Neotropical flora. As currently circumscribed, the tribe includes four genera: Elleanthus, Epilyna, Sertifera, and Sobralia. Most species ...

The taxonomic position of Myoxanthus Poepp. & Endl. (Orchidaceae: Pleurothallidinae) is discussed and Silenia Luer is maintained as a subgenus of Myoxanthus. A new species of Myoxanthus is described and illustrated. ...

A new species of Lepanthes from the Western Cordillera of the Colombian Andes, characterized by similar triangular sepals with a large and protruding column, is described and illustrated. The new species is similar to ...

Pleurothallis cerea, a species described based on a specimen collected by Lankester in Costa Rica, and commonly placed under the synonymy of Myoxanthus octomeriae or M. congestus, is here recognized as distinct. The species ...

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 ...

Two new species of Pleurothallis subsection Macrophyllae-Fasciculatae from Costa Rica, allied to P. cardiothallis, are described and illustrated, and their relationships discussed. Pleurothallis scotinantha is compared ...

The era or Carlyle Luer, which currently comprehends the forty-two years since the publication of the first Icones Pleurothallidinarum in 1975, has witnessed a true revolution in the knowledge and understanding of the ...

Stelis dies-natalis and Stelis aenigma, belonging to a group of mostly Middle American species alternatively placed in genus Dracontia, are described and illustrated based on living material. They were both ...