Biología
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Myxomycetes collected in the eastern United States and patterns of relative biodiversity
(2020-01-05)A total of 68 315 digitised records of myxomycetes from the eastern United States were compiled from all readily available sources. After cleaning the database for inconsistencies, 58 594 records remained that were ... -
New insights into the molecular phylogeny of the swimming crabs of the genera Portunus Weber, 1795 and Achelous De Haan, 1833 (Brachyura: Portunidae) of the Americas
(2018)Earlier studies of swimming crabs (family Portunidae) in the Americas suggested polyphyly of Portunus Weber, 1795. Our previous molecular analyses provided evidence for a subdivision of the genus, resulting in a reassignment ... -
Seagrass organic carbon stocks show minimal variation over short time scales in a heterogeneous subtropical seascape
(2018)Blue carbon initiatives require accurate monitoring of carbon stocks. We examined sources of variability in seagrass organic carbon (Corg) stocks, contrasting spatial with short temporal scales. Seagrass morphology and ... -
ICSEM10 Slideshow
(2020-03-03)This is a slideshow produced for the 10th International Congress on the Systematics and Ecology of Myxomycetes, held in the city of Turrialba (UCR, Sede del Atlántico) in February 2020. -
The new Refugium Botanicum. Maxillariella (Maxillaria) tenuifolia
(2017)Maxillariella tenuifolia (Lindl.) M.A. Blanco & Carnevali, Lankesteriana 7(3): 530. 2007. Basionym: Maxillaria tenuifolia Lindl., Edwards’s Botanical Register 23: sub. t. 1986. 1837. Type: “a native of ... -
The New Refugium Botanicum. Guarianthe skinneri
(2017)Guarianthe skinneri (Bateman) Dressler & W.E.Higgins, Lankesteriana 7:38 (2003). Basionym: Cattleya skinneri Bateman, Orchid. Mex. Guat. 1839. Type: Habitat in Guatemala, G. Skinner s.n. (holotype, K). Epiphytic, ... -
The new Refugium Botanicum. Trigonidium lankesteri
(2017)Trigonidium lankesteri Ames, Schedulae Orchidianae 5: 32–34. 1923. Maxillaria luisae Molinari, Richardiana 15:302. 2014 [2015]. Type: Costa Rica: Las Cóncavas, in cultivation, February 1923, C.H. Lankester 367 ... -
Masdevallia luerorum (Orchidaceae: Pleurothallidinae), a new species from Costa Rica
(2017)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 novelties in genus Platystele (Orchidaceae: Pleurothallidinae) from Costa Rica
(2017)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 ... -
Genera Pleurothallidinarum: the era of Carlyle Luer
(2017)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 ... -
Novelties in Costa Rican Stelis (Orchidaceae: Pleurothallidinae): two new species and a new record in the "Dracontia group"
(2017)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 ... -
Four new species of Pleurothallis (Orchidaceae: Pleurothallidinae) from the Valle del Cauca Department in Colombia
(2017)Pleurothallis indecora, P. juvenilis, P. lueriana and P. queremalensis are described from material collected in the municipality of Dagua, department of Valle del Cauca, Colombia. The four species were found during field ... -
Two new species of Echinosepala (Orchidaceae: Pleurothallidinae)
(2017)We describe and illustrate two new species of Echinosepala from Costa Rica, they are placed within a phylogenetic framework of the genus, and compared to their closest relatives. A short resume of the genus’ history is ... -
Lepanthes aures‐ursinae and L. vertebrata spp. nov. (Orchidaceae: Pleurothallidinae) from Panama
(2017)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 ... -
A new species of Lepanthes (Orchidaceae: Pleurothallidinae) from Colombia with a large and protruding column
(2017)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 ... -
Proceedings of the ICSEM10 Costa Rica
(2020-02-28)Este documento corresponde con la memoria completa del X Congreso Internacional sobre Sistemática y Ecología de Mixomicetes (ICSEM10) celebrado en la Sede del Atlántico de la Universidad de Costa Rica entre el 25 y el 28 ... -
Recent origin and rapid speciation of Neotropical orchids in the world's richest plant biodiversity hotspot
(2017)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, ... -
Two new species of Pleurothallis (Orchidaceae: Pleurothallidinae) allied to P. cardiothallis, with a note on flower activity
(2017)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 ... -
Additions to the Costa Rican Myoxanthus (Orchidaceae: Pleurothallidinae)
(2017)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 ... -
An eccentric new species of Stelis from Peru (Orchidaceae: Pleurothallidinae)
(2017)Stelis hualluapampensis, a new species from the cloud forests of Hualluapampa, in the Tayacaja province, Peru, is described and illustrated. Information on its distribution, habitat, phenology, and conservation status, ...
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