New species of Calathea (Marantaceae) endemic to Costa Rica

1997 ◽  
Vol 75 (8) ◽  
pp. 1356-1362 ◽  
Author(s):  
Helen Kennedy

Calathea hylaeanthoides Kennedy, Calathea retroflexa Kennedy, and Calathea incompta Kennedy are described as new. All three species are endemic to Costa Rica. Calathea hylaeanthoides and C. incompta are from the Osa Peninsula, while C. retroflexa is from midelevation on the Pacific slope of the Cordillera de Talamanca. Calathea hylaeanthoides belongs to Calathea section Breviscapus, C. retroflexa belongs to Calathea section Calathea, and C. incompta belongs to the "Ornata group" of Calathea. Key words: Marantaceae, Calathea, Costa Rica, endemism.

2018 ◽  
Vol 42 (1) ◽  
pp. 125-129
Author(s):  
Alexander Francisco Rojas Alvarado ◽  
Wouter Baaijen-Harteveld

In this paper three new species of Elaphoglossum Schott ex J. Sm., are described and illustrated, located on the pacific slope of Cordillera de Talamanca and Cerro Caraigres (Cerro Dragón), Costa Rica. The new species are: E. dragonense A. Rojas, E. flavosquamum A. Rojas and E. pacificum A. Rojas, all belong to the section Elaphoglossum subsection Pachyglossa Christ. The first species resembles E. gloeorrhizum Mickel but is separated by showing a scaly rhizome, phyllopodia with two sections, the basal one resinous as the rhizome and the second non-resinous, bigger stipe scales, and the abaxial blade is scaly. The second entity resembles E. delgadilloanum A. Rojas, but differs by having blonde to orange-yellowish rhizome scales with long lateral processes and the blade scales are mainly smaller, less dense and bicolorous with black central body and brown rays. The latter species is similar to E. cismense Rosenst., but is identified by its more slender rhizome, fronds at less distance between them, shorter phyllopodia, narrowly elliptic blade, bigger abaxial blade scales and a linear-elliptical and narrower fertile blade.


2018 ◽  
Vol 42 ◽  
pp. 125
Author(s):  
Alexander Francisco Rojas Alvarado ◽  
Wouter Baaijen-Harteveld

In this paper three new species of Elaphoglossum are described and illustrated, located on the pacific slope of Cordillera de Talamanca and Cerro Caraigres (Cerro Dragón), Costa Rica. The new species are: E. dragonense A. Rojas, E. flavosquamum A. Rojas and E. pacificum A. Rojas, all belong to the section Elaphoglossum subsection Pachyglossa Christ. The first species resembles E. gloeorrhizum Mickel but is separated by showing a scaly rhizome, phyllopodia with two sections, the basal one resinous as the rhizome and the second non-resinous, bigger stipe scales, and the abaxial blade is scaly. The second entity resembles E. delgadilloanum A. Rojas, but differs by having blonde to orange-yellowish rhizome scales with long lateral processes and the blade scales are mainly smaller, less dense and bicolorous with black central body and brown rays. The latter species is similar to E. cismense Rosenst., but is identified by its more slender rhizome, fronds at less distance between them, shorter phyllopodia, narrowly elliptic blade, bigger abaxial blade scales and a linear-elliptical and narrower fertile blade.


Zootaxa ◽  
2003 ◽  
Vol 139 (1) ◽  
pp. 1 ◽  
Author(s):  
ÁNGEL SOLÍS ◽  
BERT KOHLMANN

The following new species of dung beetles (Coleoptera: Scarabaeidae) from Costa Rica and Panama are described: Copris tridentatus sp. nov., Onthophagus notiodes sp. nov., Onthophagus xiphias sp. nov. and Trichillum arcus sp. nov. Pedaridium bradyporum (Boucomont) is reported from the Pacific slope of Costa Rica for the first time. Drawings of the dorsal habitus of all species are provided.


Lankesteriana ◽  
2019 ◽  
Author(s):  
Mark Wilson ◽  
Kehan Zhao ◽  
Hailey Hampson ◽  
Matt Chang ◽  
Guillermo A. Reina-Rodríguez ◽  
...  

Pleurothallis tenuisepala, a new species in subsection Acroniae, is described and compared to Pleurothallis luctuosa with which it has previously been confused. While the two species are superficially similar, they can be very easily distinguished by the size of the flowers, which are approximately 60 mm long in P. tenuisepala versus approximately 29 mm long in P. luctuosa, or the length of the sepals, which are approximately four-times the length of the petals in P. tenuisepala versus less than twice the length of the petals in P. luctuosa. The two species can also be discriminated by their nuclear internal transcribed spacer (nrITS) sequences. Pleurothallis tenuisepala occurs on Isla Gorgona off the Pacific coast of Colombia and on the western slopes of the Cordillera Occidental of the Colombian Andes, while P. luctuosa is restricted to the Cordillera de Tilarán of Costa Rica. Labellar micromorphology of both species is discussed in relation to possible pollination mechanisms. Key words: Acroniae, cryptic species, labellum, morphology, taxonomy


Zootaxa ◽  
2017 ◽  
Vol 4282 (1) ◽  
pp. 73
Author(s):  
WILLIAM A. HABER

The female bears a pair of highly distinctive postocellar horns similar to those of three other species endemic to Costa Rica, E. corniculatus, E. echeverrii, and E. verticicornis. The males of two additional new species, E. morrisoni and E. wagneri, are described from premontane wet forest on the Pacific slope near Monteverde, resulting in a total of 13 species recorded from Costa Rica. 


2013 ◽  
Vol 11 (2) ◽  
pp. 285-290
Author(s):  
Wilfredo A. Matamoros ◽  
Prosanta Chakrabarty ◽  
Arturo Angulo ◽  
Carlos A. Garita-Alvarado ◽  
Caleb D. McMahan

A new species of Roeboides is described from the Pacific slope of Costa Rica and Panama. Roeboides bussingi differs from all other Central American Roeboides and all members of the R. guatemalensis species group by the following combination of characters: presence of 18-22 scales above the lateral line (vs. 12-16 in R. dientito); 15-22 scales below the lateral line (vs. 10-14 in R. dientito, and 20-24 in R. loftini); an inconspicuous, sometimes absent, crescent-shaped humeral spot (vs. a large round, conspicuous humeral spot in R. carti, R. dayi, R. dientonito, R. ilseae, R. loftini,and R. occidentalis); a small wedge-shaped spot that does not reach the lateral line (vs. a large spot crossing the lateral line in R. guatemalensis); a teardrop shaped caudal spot (vs. caudal spot triangle shaped in R. bouchellei); and a dark band at the distal tip of the anal fin (vs. dark band absent in R. bouchellei). A key to all Middle American species of Roeboides is also presented


2015 ◽  
pp. 805-809
Author(s):  
Jay M Savage ◽  
Craig Guyer

Se describe una especie nueva de lagartija del grupo de Norops fuscoauratus de Talamanca, Costa Rica. Difiere de las especies emparentadas de Costa Rica (Norops attae) y Panamá (Norops exsul, N. fortunensis y N. kemptoni) básicamente porque una estructura masculina ("dewlap") se extiende hasta el nivel de la axila y por ser rosado con un margen exterior anaranjado. También tiene patas más largas que N. fortunensis y N. kemptoni; difiere de este último y de N. attae y N. exsut en que tiene 2-4 filas ligeramente agrandadas de escamas medio-dorsales La especie nueva solo se conoce de Cerro Pando (frontera entre Costa Rica y Panamá).


Zootaxa ◽  
2012 ◽  
Vol 3182 (1) ◽  
pp. 65 ◽  
Author(s):  
ODALISCA BREEDY ◽  
HECTOR M. GUZMAN

The description of this single species is necessary to facilitate the publication of ongoing research conducted by Rita Vargas at the Museum of Zoology, University of Costa Rica, dealing with the associated microfauna. Presently 24 species of Leptogorgia have been reported for the eastern Pacific, 13 of which have been found in Costa Rica (Breedy & Cortés 2011). Although octocoral surveys have been conducted as part of biodiversity studies, there is no published information regarding the occurrence of this taxon in Golfo Dulce. Here we describe a new species of Leptogorgia and compare it with other Leptogorgia species with similar characteristics. Golfo Dulce is a bay located on the southern Pacific coast of Costa Rica. It is about 50 km long, 10–15 km wide, and covers an area of approximately 680 km². The inner part of Golfo Dulce has a maximum depth of slightly over 200 m with a 60 m deep sill at the opening to the Pacific Ocean (Cortés 1999). It has been considered a tropical fjord because of the bathymetry and the presence of anoxic deep waters (Cortés 1999, Svendsen et al. 2006). Specimens were collected by Scuba diving, preserved in 70% ethanol or air dried, and treated and identified following the current methodology (Breedy & Guzman 2002). The holotype and paratypes are deposited in the Museo de Zoología, Universidad de Costa Rica (MZUCR, formerly UCR), San José, P.O. Box 11501-2060, Costa Rica.


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