Luis Antonio Ocupa Horna
@cinbiotyc.weebly.com
Jefe del Departamento de Orquideología
Centro de Investigación en Biología Tropical y Conservación - CINBIOTYC
RESEARCH, TEACHING, or OTHER INTERESTS
Ecology, Evolution, Behavior and Systematics, Ecology, Plant Science
Scopus Publications
Scopus Publications
LUIS OCUPA-HORNA, MARK WILSON, and MARCO M. JIMÉNEZ
Magnolia Press
A new species of Pleurothallis belonging to subsection Macrophyllae-Fasciculatae was discovered in the Carpish Montane Forest Regional Conservation Area, Huánuco, Peru. Pleurothallis carpishensis is described, illustrated, and compared to P. radula, from which it is differentiated by the flowers borne from a depressed spathaceous bract resting on a navicular concavity on the leaf, the oblong-lanceolate, apiculate petals, with large papillae on the margins, the triangular, subacute lip, with a basal, widely ovate and emarginate, papillose-verrucose callus, with two oblique, lateral and marginal keels.
Luis Ocupa-Horna, Lisa Thoerle, Andre Schuiteman, and Carlos Martel
Springer Science and Business Media LLC
JUSTIN YEAGER, GABRIEL A. ITURRALDE, LUIS OCUPA HORNA, ABEL HUAYTA BALTAZAR, and LUIS E. BAQUERO R.
Magnolia Press
Here we describe a charismatic miniature orchid species, Lepanthes attenboroughii which for many years has been commonly found in private and public collections, misidentified as its related species, L. caprimulgus. The new proposed species, L. attenboroughii has inflated flowers with stripes similar to L. caprimulgus. Nevertheless, L. attenboroughii shows rounder flowers when compared to the longer, tubular flowers with a narrowing of the sepaline cup towards the middle of L. caprimulgus with flowers reminiscent of a peanut. Also, the hidden petals and lip are consistently different when the two species are compared in detail. Most remarkable in this new species are the inflated flowers with the free reflexed portion of the synsepal extending significally farther than the middle of the total length of the sepaline cup.
LUIS OCUPA-HORNA, MARCO M. JIMÉNEZ, JULIAN DUARTE SALINAS, ELIZABETH SANTIAGO AYALA, and ERIC HÁGSATER
Magnolia Press
Two new species and one record of Epidendrum, found in the forests of the Carpish Montane Forest Regional Conservation Area, are described, illustrated and compared with morphologically similar species. Epidendrum churubambense is characterized by the roots present only at base of primary pseudobulbs, the narrower leaves, the narrowly lanceolate and the yellow-green flowers with sepals slightly tinged brown. Epidendrum unchogense is characterized by lanceolate leaves, flowers with longer sepals, trullate petals, usually more long, entire lip, narrowly ovate with acute apex. Epidendrum sanctae-rosae a previously known species from Colombia, is reported as new country record to the Peruvian flora.
Luis Ocupa-Horna, Sebastián Vieira-Uribe, Raven Ward, Caroline Brose, and Mark Wilson
Universidad de Costa Rica
A new species, Andinia peruviana, from Amazonas department, Peru, is described and illustrated. Updated phylogenetic analyses of nuclear internal transcribed spacer (nrITS) sequences in this study re-affirm the monophyletic nature of Andinia sensu lato and further support the previously proposed circumscription which incorporated genera Lueranthos, Masdevalliantha, Neooreophilus, and Xenosia. Andinia subgenus Aenigma was strongly supported in all analyses. The new species was determined phylogenetically to belong to subgenus Aenigma, along with A. barbata, A. dalstroemii, A. hirtzii, A. pogonion, A. schizopogon and A. uchucayensis. The phylogenetically-confirmed representatives of subgenus Aenigma are illustrated with drawings and photographs, and their geographic distribution is discussed. The updated phylogenetic analyses also show the corrected phylogenetic positions of A. vestigipetala, as the sole representative of the clade corresponding to subgenus Minuscula, and A. trimytera, as a member of the clade corresponding to subgenus Andinia.
MARCO M. JIMÉNEZ, LEISBERTH VÉLEZ-ABARCA, LUIS OCUPA HORNA, NELSON JARAMILLO, and LUIS E. BAQUERO
Magnolia Press
Tribe Vaccinieae Reichenbach with more than 800 species contains most of the neotropical taxa of Ericaceae Jussieu (Pedraza-Peñalosa 2015a: 35). Species of genus Vaccinium Linneaus (1753: 349) known as blueberries or mortiños in Spanish, are members of Vaccinieae well-known for their economic importance (Pedraza-Peñalosa 2015b: 100). The genus Ceratostema Jussieu (1789: 163) was created by Antoine Jussieu and Ceratostema peruvianum Gmelin (1791: 676) was designated as the type species (Luteyn 1986: 485). It was first treated by Smith in 1952, who published a brief description and an artificial key, recognizing 16 species at that time (Smith 1952). Luteyn (1986) reviewed the genus and provided an updated artificial key to 23 species, including three new ones. Subsequently, a new species from Peru was added and thirteen more from Ecuador were included in the genus (Luteyn 1992, 1996, 2005).
CARLOS MARTEL, LUIS EGOAVIL, LUIS OCUPA, JUAN ANDRE TELLO, FEDERICO RIZO PATRÓN, CÉSAR LAURA, MARCO LEÓN, and BENJAMÍN COLLANTES
Magnolia Press
We propose the new species Maxillaria bicentenaria from the montane forest of central Peru and provide an amendment of the description of Maxillaria pyhalae. Maxillaria bicentenaria is similar to M. pyhalae but differs by the elliptic to sub-elliptic labellum, the labellum distal half irregularly plicate, the flattened and transversally sub-trapezoidal labellar callus, the campanulate to sub-campanulate protuberance at the labellum apex centre, and the conspicuous carina with a sharp edge towards the top of the anther. Illustrations, pictures, and a distribution map are provided for both Maxillaria species. The differential features of both species are presented and previous misidentified records are discussed. Finally, a comment on the author name of Maxillaria fletcheriana is also provided.
MARCO M. JIMÉNEZ, Luis Ocupa Horna, and LEISBERTH VÉLEZ-ABARCA
Magnolia Press
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Luis Ocupa Horna, Sebastián Vieira-Uribe, and Luis Enrique Yupanqui Godo
Universidad de Costa Rica
Two new Andinia species are described, A. barba-caprina and A. crassipetala, both found during a botanical expedition to the montane forests of the Central Cordillera of the Peruvian Andes. They are compared with morphologically similar species, and Lankester Composite Dissection Plates (LCDP) are provided. Andinia barba-caprina is more similar to A. tingomariana but is distinguished by having obovate sepals with sparsely erose margins and the lip with narrowly obtuse, short basal lobes and a group of large hairs on the abaxial surface. Andinia crassipetala is distinguished from the two most similar species, A. hernandoi Est.Domínguez & S.Vieira-Uribe and A. persimilis (Luer & Sijm) Karremans & S.Vieira-Uribe for having thick, deltate and obtuse petals.
Luis Ocupa Horna, Eric Hágsater, and Marco M. Jiménez
Pensoft Publishers
A new species of Epidendrum L. from northern Peru is described, illustrated, and compared with related species. This new species belongs to the Laxicaule Group and shares morphological characteristics with Epidendrum laxicaule D.E. Benn &amp; Christenson but differs in the shape and length of the dorsal sepal; the shape of the petals and the lip, ribs position of the lip, shape of the vesicle formed between the ovary and the column as well as the section of the stem.
Marco M. Jiménez, Luis Ocupa Horna, Leisberth Velez-Abarca, and Luis E. Baquero
Informa UK Limited
ABSTRACT Dryadella mocoana which was hitherto thought to be endemic to Mocoa, Putumayo department in Colombia has now been reported for the first time in the lower montane forests of Zamora-Chinchipe province, southern Ecuador. A Lankester composite digital plate (LCDP), photos, taxonomic comments, and an updated description of the species based on the examined material is provided.
Carlos Martel, José Edquen, Benjamín Collantes, and Luis Ocupa
American Society of Plant Taxonomists
Abstract—Telipogon chachapoyensis is described as a new species. It is similar to Telipogon microglossus. We provide a description, illustrations, pictures, and information about the habitat of this new species. Furthermore, we present information and discuss the identity and occurrence of species morphologically similar to Telipogon chachapoyensis, which we call the Telipogon microglossus group, a distinct group among the Telipogon. We also transfer a recently described species, Stellilabium latialatum, to Telipogon.
Iván Tamayo-Cen, Germán Carnevali, Luis Ocupa Horna, José Luis Tapia, and Gustavo Romero-González
American Society of Plant Taxonomists
Abstract—The identity of Epidendrum sclerocladium, currently referable to Encyclia, is clarified with the recent collection of material unambiguously referable to this entity. In addition, we provide a new name in Encyclia for this taxon, E. rhizomatosa Tamayo-Cen, Carnevali & G.A.Romero, because the current combination, E. sclerocladia (Lindl. ex Rchb.f.) Hoehne, is based upon the later homonym Epidendrum sclerocladium Lindl. ex Rchb.f. This name is predated by Epidendrum sclerocladium Lindley as we argue that Lindley validly published the name in a horticultural catalogue, a nomenclatural issue herein discussed. Furthermore, because the vegetative portions of the plants were unknown until recently, we provide an epitype to supplement the holotype for the unequivocal identification of the species. A preliminary assessment of its conservation status and phylogenetic relationships are presented. Encyclia thrombodes is discussed and it is concluded that no known plants are referable to this entity at this time. A lectotype is proposed for Epidendrum cyperifolium because the holotype was destroyed. Finally, we provide an annotated checklist of the Encyclia species known to occur in Peru.
Marco M. Jiménez, Luis Ocupa Horna, and Leisberth Vélez-Abarca
Universidad de Costa Rica
Comparettia bennettii, a previously known species from Peru and Bolivia, is here recorded in the premontane forests of southeastern Ecuador. We provide a Lankester Composite Digital Plate (LCDP), photos, taxonomic comments, and an updated description of the species.
 Key Words: Amazonia, Cordillera del Cóndor, premontane forests, Stigmatorthos, southeastern Ecuador, taxonomy