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Surco, Peru

Dalstrom S.,2304 Ringling Boulevard | Dalstrom S.,University of Costa Rica | Dalstrom S.,National Biodiversity Center | Perez S.R.,Allamanda 142
Lankesteriana | Year: 2015

Two new species of Masdevallia, subgenus Pygmaeia, section Amaluzae are described, illustrated with line drawings and color photographs, and compared with similar taxa. The two new species are sympatric and share many morphological characteristics, but differ from each other through features such as pubescent sepals versus glabrous sepals, size and coloration. Both new species differ from all other members of the same subgenus and section by much larger plant habits. © Universidad de Costa Rica, 2015. Source


Dalstrom S.,University of Costa Rica | Dalstrom S.,National Biodiversity Center | Perez S.R.,Allamanda 142
Lankesteriana | Year: 2014

A new species of Odontoglossum with an extraordinary long column and filamentose lip callus is described, illustrated with a photograph and a line drawing, and compared with similar and presumably closely related species, such as O. epidendroides and O. juninense. The new species belongs to the Odontoglossum complex with a flexible lip-base attachment, but differs from all other species in that complex primarily by the elongate base of the column, below the attachment of the strap-like lip-base. © Universidad de Costa Rica, 2014. Source


Dalstrom S.,University of Costa Rica | Dalstrom S.,National Biodiversity Center | Perez S.R.,Allamanda 142
Lankesteriana | Year: 2014

Plants of a colorful Odontoglossum were recently found by separate parties in the Cusco region of central Peru. The species was incorrectly identified as Odontoglossum epidendroides, independently by both parties. Although similar in appearance, a closer examination of the flower reveals that it represents a new species, which is scientifically described here and compared with similar species. The new taxon is distinguished from the similar O. cruentum and O. juninense by morphological features of the column, such as the lateral curvature profile, with larger and more rectangular wings, and in combination with the well developed falcate callus structure on the lip. Our new species is also distinguished from the rather similar O. epidendroides by having flowers with a shorter column with shorter wings. © Universidad de Costa Rica, 2014. Source


Dalstrom S.,University of Costa Rica | Dalstrom S.,National Biodiversity Center | Perez S.R.,Allamanda 142
Lankesteriana | Year: 2014

Three new Masdevallia species are described, illustrated and compared with similar species. A brief taxonomic discussion is held about the justification for describing the new taxa as Masdevallia and not as belonging to any of the recently proposed segregated genera. The first species is most similar to M. rimarimaalba but differs in having a more tubular flower and a narrower lip, the second species is similar to M. dudleyi and M. nunezii but differs in the richly pubescent sepals, and the third species is distinguished from other similar and multiflowered Masdevallia species by the rugose lip. © Universidad de Costa Rica, 2014. Source

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