Luis Antonio Ocupa Horna

@cinbiotyc.weebly.com

Jefe del Departamento de Orquideología
Centro de Investigación en Biología Tropical y Conservación - CINBIOTYC

Luis Antonio Ocupa Horna


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https://researchid.co/luisocupa

RESEARCH, TEACHING, or OTHER INTERESTS

Ecology, Evolution, Behavior and Systematics, Ecology, Plant Science
16

Scopus Publications

Scopus Publications

  • A new species of Meriania (Melastomataceae: Merianieae) from southeastern Ecuador
    MARCO M. JIMÉNEZ, GABRIEL A. ITURRALDE, JOHNY MENDOZA, LUIS OCUPA-HORNA, HENRY X. GARZÓN-SUÁREZ
    Phytotaxa, 2024
    Meriania judithiae, a new species from the southeast of Morona Santiago in Ecuador, is described and illustrated. With this new addition, the number of species of the genus increases to 33 in this country. Meriania judithiae has leaves with a attenuate base extending down the petiole as wings, multiflorous inflorescences with sub-umbellate paraclades, pink-orange campanulate flowers, the calyx with conical projections, and isomorphic stamens with connectives prolonged below the thecae. It is compared with M. cuneifolia, its most similar species which shares the distant supra-basal venation and gradually narrowing base of the leaves. In addition, the taxonomic similarities of the new entity are discussed and information about its distribution, habitat, and conservation status is provided.
  • ENCYCLIA NARANJAPATENSIS DODSON (ORCHIDACEAE), A NEW RECORD FOR THE PERUVIAN FLORA
    Luis Ocupa-Horna, Kelly D. Agurto-Palomino, Ayrtón Chorres-Arica, Iván Tamayo-Cen
    Botanical Sciences, 2024
    Background: Encyclia, is a genus with more than 200 species in the Neotropics, eight of which have been previously reported from Peru. During the evaluation of the orchid flora in the forests of the Sicchez district, a small population of an Encyclia species was found that could not be unequivocally matched to any previously known species in the country.
 Questions: Will the recent explorations of Northern Peru result in the reporting of new taxa for the country?
 Studied species: Orchidaceae, Laeliinae, Encyclia Hook, Encyclia naranjapatensis Dodson
 Study site and dates: Sicchez District, Ayabaca Province, Piura Department, Peru, 2022-2023.
 Methods: Specimens were collected and determined by consulting botanical collections available online, taxonomic treatments, checklists, and specialized literature. The conservation status was assessed according to IUCN methodology.
 Results: We report a novelty for Peru, Encyclia naranjapatensis, and an updated description including morphological information on relevant structures that will be used to diagnose this entity. In addition, E. naranjapatensis is part of a basal clade referred to as the E. diurna species group. The conservation status assessment results in Endangered and the species is linked to the Seasonally Dry Tropical Forest, an endangered ecosystem throughout the Neotropics.
 Conclusions: The recent entity located in Peru correspond to Encyclia naranjapatensis. This discovery allows us to investigate the geographical limits, discuss the phylogenetic and ecological affinities, update the original description, and evaluate its conservation status.
  • A new species of Pleurothallis (Orchidaceae: Pleurothallidinae) in subsection Macrophyllae-Fasciculatae found in Carpish Montane Forest Regional Conservation Area, Peru
    LUIS OCUPA-HORNA, MARK WILSON, MARCO M. JIMÉNEZ
    Phytotaxa, 2023
    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.
  • A revised checklist of Lepanthes (Orchidaceae) from Peru, including new country records
    Luis Ocupa-Horna, Lisa Thoerle, Andre Schuiteman, Carlos Martel
    Brittonia, 2023
  • A Remarkable new Lepanthes (Orchidaceae: Pleurothallidinae) hidden in plain sight
    JUSTIN YEAGER, GABRIEL A. ITURRALDE, LUIS OCUPA HORNA, ABEL HUAYTA BALTAZAR, LUIS E. BAQUERO R.
    Phytotaxa, 2022
    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.
  • Two new species and a new record of Epidendrum (Orchidaceae) from the Carpish Montane Forest Regional Conservation Area, Peru
    LUIS OCUPA-HORNA, MARCO M. JIMÉNEZ, JULIAN DUARTE SALINAS, ELIZABETH SANTIAGO AYALA, ERIC HÁGSATER
    Phytotaxa, 2022
    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.
  • A NEW SPECIES OF ANDINIA (PLEUROTHALLIDINAE) FROM PERU AND AN UPDATED PHYLOGENETIC ANALYSIS OF THE GENUS WITH EMPHASIS ON SUBGENUS AENIGMA
    Luis Ocupa-Horna, Sebastián Vieira-Uribe, Raven Ward, Caroline Brose, Mark Wilson
    Lankesteriana, 2022
    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.
  • A new species of Ceratostema (Ericaceae: Vaccinieae) from Ecuador
    MARCO M. JIMÉNEZ, LEISBERTH VÉLEZ-ABARCA, LUIS OCUPA HORNA, NELSON JARAMILLO, LUIS E. BAQUERO
    Phytotaxa, 2021
    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).
  • An homage to Peru’s bicentenary: Maxillaria bicentenaria (Orchidaceae), a new species previously misidentified as M. pyhalae
    CARLOS MARTEL, LUIS EGOAVIL, LUIS OCUPA, JUAN ANDRE TELLO, FEDERICO RIZO PATRÓN, CÉSAR LAURA, MARCO LEÓN, BENJAMÍN COLLANTES
    Phytotaxa, 2021
    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.
  • A new species of pleurothallis (Orchidaceae: Pleurothallidinae) from Zamora in the Province of Zamora Chinchipe, Ecuador
    MARCO M. JIMÉNEZ, Luis Ocupa Horna, LEISBERTH VÉLEZ-ABARCA
    Phytotaxa, 2021
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  • A new species of Epidendrum L. (Orchidaceae) of pendulous habit from Peru
    Luis Ocupa Horna, Eric Hágsater, Marco M. Jiménez
    Phytokeys, 2021
  • TWO NEW SPECIES OF ANDINIA (PLEUROTHALLIDINAE) FROM THE CENTRAL CORDILLERA OF PERU
    Luis Ocupa Horna, Sebastián Vieira-Uribe, Luis Enrique Yupanqui Godo
    Lankesteriana, 2021
  • A new record of Dryadella mocoana (Orchidaceae: Pleurothallidinae) from southeastern Ecuador
    Marco M. Jiménez, Luis Ocupa Horna, Leisberth Velez-Abarca, Luis E. Baquero
    Neotropical Biodiversity, 2021
  • Telipogon chachapoyensis (Orchidaceae), a New Species from Peru Similar to T. microglossus
    Carlos Martel, José Edquen, Benjamín Collantes, Luis Ocupa
    Systematic Botany, 2020
  • Encyclia sclerocladia (Orchidaceae: Laeliinae) Revisited: A New Name, Its Phylogenetic Position, and an Annotated Checklist of Peruvian Encyclia.
    Iván Tamayo-Cen, Germán Carnevali, Luis Ocupa Horna, José Luis Tapia, Gustavo Romero-González
    Systematic Botany, 2020
  • Comparettia bennettii (Orchidaceae: Oncidiinae), a new record for Ecuador
    Marco M. Jiménez, Luis Ocupa Horna, Leisberth Vélez-Abarca
    Lankesteriana, 2020