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Now showing items 11-19 of 19
Two new records of the fern genus Lindsaea Dryand. ex Sm. (Lindsaeaceae) from Panama
(Universidad Nacional (Costa Rica), 2023-05-19)
Presentamos los primeros registros de Lindsaea leprieurii Hook. y Lindsaea angustipinna A.Rojas & Tejero de Panamá. Se proporcionan imágenes, comentarios taxonómicos, evaluaciones de conservación y notas geográficas.
Five New Species of Diplazium Sw. (Athyriaceae) from Nicaragua, Costa Rica and Colombia
(Universidad Nacional (Costa Rica), 2018-04-13)
Five new species are described in the genus Diplazium Sw. from Nicaragua,
Costa Rica and Colombia, as results of studies in the Neotropical ferns. The
new species are Diplazium chirripoense A. Rojas, Diplazium cornutum ...
Four New Species and Additional Distributions of Elaphoglossum Section Elaphoglossum (Dryopteridaceae) from the Neotropics
(Universidad Nacional (Costa Rica), 2017-05-19)
Four new species of Elaphoglossum sect. Elaphoglossum are described: E.
amparoanum A. Rojas, E. chocoense A. Rojas, E. fayorum A. Rojas and E.
luciae A. Rojas. The first species is related to E. variolatum Mickel, but ...
A new giant velvet worm from Costa Rica suggests absence of the genus Peripatus (Onychophora: Peripatidae) in Central Americ
(Universidad de Costa Rica, 2020-02-03)
Introduction: Neotropical onychophoran taxonomy and diversity has been poorly investigated. Recent studies have discovered problems in species classification: they have questioned the accepted genera and the actual number ...
Unexplored Character Diversity in Onychophora (Velvet Worms): A Comparative Study of Three Peripatid Species
(Sars International Centre for Marine Molecular Biology, Norway, 2012-12-17)
Low character variation among onychophoran species has been an obstacle for taxonomic and phylogenetic studies in the past, however we have identified a number of new and informative characters using morphological, molecular, ...
Identificación de cuatro especies de Clupeiformes (Actinopterygii) mediante análisis de secuencias de ADN mitocondrial en áreas de explotación pesquera del Golfo de Nicoya, Costa Rica
(Universidad Nacional, Costa Rica, 2021-01)
Las sardinas junto con las anchovetas constituyen unos de los grupos de mayor importancia en la pesquería del golfo de Nicoya. Son alimento para peces de mayor tamaño y aves marinas, por tanto, no solo sufren explotación ...
Three New Species and New Records of Dennstaedtia Bernh. from Mesoamerica
(Universidad Nacional, Costa Rica, 2018)
Navarrete & Øllgaard [1] indicated the presence of a “C” group within
Dennstaedtia Bernh. that contains D. obtusifolia (Willd.) T. Moore, which is
the type material of the genus Patania C. Presl and indicated that it ...
New records, validated name, and redefinition in Azolla (Salviniaceae, Pteridophyta) from Costa Rica
(Universidad de Antioquia (Colombia), 2024)
In studies of herbarium specimens and living material, we observed that several species in the
genus Azolla Lam. are present in different wetlands of Costa Rica, which instigated the search for
applicable names of each ...
New species and records of Cloeodes Traver, 1938 (Ephemeroptera, Baetidae) from Costa Rica
(Pensoft (Bulgaria), 2020)
The nymph of Cloeodes danta sp. nov. is described from male and female nymphs collected from highland
streams in the Caribbean Slope of the Costa Rica Central Volcanic Mountain Range. Adults are unknown.
In addition, C. ...