Xavier Cornejo

ORCID: 0000-0002-4081-4047
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About
Contact & Profiles
Research Areas
  • Plant Diversity and Evolution
  • Plant and animal studies
  • Phytochemistry and Biological Activities
  • Plant and Fungal Species Descriptions
  • Botanical Research and Applications
  • Ethnobotanical and Medicinal Plants Studies
  • Botany, Ecology, and Taxonomy Studies
  • Fern and Epiphyte Biology
  • Phytochemical Studies and Bioactivities
  • Essential Oils and Antimicrobial Activity
  • Botany and Geology in Latin America and Caribbean
  • Mediterranean and Iberian flora and fauna
  • Marine and coastal plant biology
  • Plant and soil sciences
  • Cocoa and Sweet Potato Agronomy
  • Plant Parasitism and Resistance
  • Psidium guajava Extracts and Applications
  • Scarabaeidae Beetle Taxonomy and Biogeography
  • Medicinal Plant Extracts Effects
  • Plant Pathogens and Fungal Diseases
  • Piperaceae Chemical and Biological Studies
  • Coastal wetland ecosystem dynamics
  • Phytochemistry and Bioactive Compounds
  • Advances in Cucurbitaceae Research
  • Natural product bioactivities and synthesis

University of Guayaquil
2016-2025

New York Botanical Garden
2007-2019

Universidad Estatal de Milagro
2019

Universidade Federal de Mato Grosso do Sul
2018

Harvard University
2011

University of Wisconsin–Madison
2010

Daniela C. Zappi Fabiana Ranzato Filardi Paula Leitman Vinícius Castro Souza Bruno Machado Teles Walter and 95 more José Rubens Pirani Marli Pires Morim Luciano Paganucci de Queiroz Taciana Barbosa Cavalcanti Vidal de Freitas Mansano Rafaela Campostrini Forzza Maria Carolina de Abreu Pedro Acevedo‐Rodríguez María F. Agra Eduardo Bezerra de Almeida Gracineide S.S. Almeida Rafael Felipe de Almeida Flávio Macêdo Alves Marccus Alves Anderson Alves‐Araújo Maria Clara Estanislau do Amaral André M. Amorim Bruno S. Amorim Ivanilza Moreira de Andrade Regina Helena Potsch Andreata Caroline Oliveira Andrino Elisete A. Anunciação Lidyanne Yuriko Saleme Aona Yani Aranguren João L. M. Aranha Filho Andréa Onofre de Araújo Ariclenes A.M. Araújo Diogo Araújo María Mercedes Arbo Leandro C. S. Assis Marta Camargo de Assis Vivian Almeida Assunção Sarah Maria Athiê‐Souza Cecilia O. Azevedo João Batista Baitello Felipe Fajardo Villela Antolin Barberena Maria Regina de Vasconcellos Barbosa Fábio de Barros Lucas A. V. Barros Michel J.F. Barros José Fernando A. Baumgratz Luís Carlos Bernacci Paul E. Berry Narcísio C. Bigio Leonardo Biral Volker Bittrich Rafael Augusto Xavier Borges Roseli Lopes da Costa Bortoluzzi Claudia Petean Bove Massimo G. Bovini João Marcelo Alvarenga Braga Denise Monte Braz João B. A. Bringel Carla Poleselli Bruniera Camila Vanessa Buturi Elza Cabral Fernanda Nunes Cabral Mayara K. Caddah Claudenir Simões Caires Luana Silva Braucks Calazans Maria Fernanda Calió Rodrigo Augusto Camargo Lisa M. Campbell Thais S. Canto‐Dorow J. P. P. Carauta José María Cardiel Domingos Cardoso Leandro Jorge Telles Cardoso Camila R. Carneiro Cláudia Elena Carneiro Daniela Santos Carneiro‐Torres Tatiana Tavares Carrijo Maria Beatriz Rossi Caruzo Maria Luiza Silveira de Carvalho Micheline Carvalho‐Silva Ana Carolina Devides Castello Larissa Cavalheiro Armando Carlos Cervi Roberta Gomes Chacon Alain Chautems Berenice Chiavegatto Nádia S. Chukr Alexa A.O.P. Coelho Marcus A. Nadruz Coelho Rubens Luiz Gayoso Coelho Inês Cordeiro Elizabeth Córdula Xavier Cornejo Ana L.A. Côrtes Andréa Ferreira da Costa Fabiane Nepomuceno Costa Jorge Antônio Silva Costa Leila C. Costa Maria Bernadete Costa-e-Silva James Lucas da Costa‐Lima

Abstract An updated inventory of Brazilian seed plants is presented and offers important insights into the country's biodiversity. This work started in 2010, with publication Plants Fungi Catalogue, has been since by more than 430 specialists working online. Brazil home to 32,086 native Angiosperms 23 Gymnosperms, showing an increase 3% its species richness relation 2010. The Amazon Rainforest richest biome for while Atlantic one Angiosperms. There was a considerable increment number...

10.1590/2175-7860201566411 article EN cc-by-nc Rodriguésia 2015-01-01

Salacia juradoi (Celastraceae), a new species of tree from the forest remnants Guayaquil in coastal Ecuador, is here described and illustrated, affinities with closely morphologically related taxa commented. The conservation status assessed as Endangered.

10.11646/phytotaxa.524.2.8 article EN Phytotaxa 2021-11-03

Abstract Accurate species delimitation is necessary to estimate diversity. However, remains challenging in the poorly studied Coccoloba genus northern Andes. gracilis and C. ruiziana are endemic related inhabiting dry seasonal tropical forest of Amotape–Huancabamba zone Ecuador Peru. The identity widely recognized. some information about missing its has not been thoroughly checked by previous authors. We used morphological, phylogenetic, ecological data a robust methodological approach...

10.1093/botlinnean/boae084 article EN Botanical Journal of the Linnean Society 2025-01-16

Three new species of trees Lecythidaceae are described for Colombia and Ecuador, Grias capparidastroides from the lowlands Cauca Department on Pacific coast Colombia, G. densiflora Antioquia in northwestern cryptica Esmeraldas Province Ecuador. The formally illustrated, their relationships with morphologically similar discussed.

10.11646/phytotaxa.684.2.12 article EN Phytotaxa 2025-02-11

Dracontium fuscopunctatum, a new species of Araceae—Lasioideae—Dracontieae from the lower montane forest at eastern Andean slopes, in province Morona Santiago, southeastern Ecuador, is here described and illustrated. It characterized by tubercles produced on top tubers within depression with thickened raised-margins. The also leaf blades veins sulcate scattered tufts glandular trichomes adaxially, prominent black glands abaxially, inflorescence large spathe that has punctuations to short...

10.11646/phytotaxa.687.2.8 article EN Phytotaxa 2025-02-17

The new combination Ceratostema gualaquizaensis var. lucida (Ericaceae: Vaccinieae) from southeastern Ecuador is presented here; and the status of C. portillae A. Doucette & H. Medina guachizacae Doucette, Medina, J. Portilla updated. A key to complex provided.

10.17348/jbrit.v19.i1.1390 article EN Journal of the Botanical Research Institute of Texas 2025-03-10

This study investigates the phytochemical, genetic, and antioxidant properties of Psidium guineense , a species native to tropical dry forests Ecuador. Leaves were collected, preserved in recognized herbaria, subjected Soxhlet extraction using polar non-polar solvents. Phytochemical screening revealed presence secondary metabolites, while GC-MS analysis detected chemical compounds extracts. Antioxidant assays demonstrated high phenolic (54.34 ± 0.49 mg GAE/g) flavonoid (6.43 0.38 QE/g)...

10.1371/journal.pone.0319524 article EN cc-by PLoS ONE 2025-03-19

Two new species of neotropical Lecythidaceae from western Ecuador are formally described: Scottmoria austroccidentalis montane Andean forests in the El Oro Province, southwestern Ecuador, and S. petalocostata slopes Carchi northwestern Ecuador. Also, six combinations presented, which were transferred Eschweilera to Scottmoria: beebei (Pittier ex S.A. Mori) Prance, bogotensis (R. Knuth) Cornejo & garagarae (Pittier) integricalyx (S.A. microcalyx Prance Cornejo, venezuelica Prance. The...

10.11646/phytotaxa.696.3.5 article EN Phytotaxa 2025-04-02

This study presents a comprehensive revision and evaluation of all species Passiflora subgenus Astrophea found in Ecuador, with focus on several key findings. The distribution P. putumayensis has been closely examined, revealing its restriction to northern Ecuador through comparison type material from the Putumayo, Colombia. Additionally, three new exhibiting an arborescent free-standing habit have identified are here described illustrated under proposed names dendroidea, kyathantha...

10.11646/phytotaxa.697.2.1 article EN Phytotaxa 2025-04-14

Abstract We resurrect Capparidastrum (Capparaceae), a neotropical genus traditionally included in Capparis s.l., that comprises three subgenera: Subgen. (two spp.), Pulviniglans subgen. nov. (11 and Pachycarpum spp.). transfer the following species from s.l. to Capparidastrum: C. frondosum comb. nov., adding it solum previously transferred by us; we place of four Hutchinson accept (C. macrophyllum, petiolare, sprucei), plus eight s.l.: bonifazianum coimbranum cuatrecasanum discolor humile...

10.3100/1043-4534-13.2.229 article EN Harvard Papers in Botany 2008-12-01

A revision of the American species genus Crateva (Capparaceae) recognizes four species: (1) C. palmeri, a CentralAmerican with short, stubby, pubescent inflorescences distinguished by furfuraceous trichomes, leaflets sessile or short petiolules to 4 mm, and axis infructescences, 1–6 cm. Unpublished isotypes, local names, uses palmeri are cited herein; (2) widespread glabrous tapia, ranging form Mexico Argentina Lesser Antilles. Its variable floral morphology is discussed, names also reported...

10.3100/1043-4534(2008)13[121:arotas]2.0.co;2 article EN Harvard Papers in Botany 2008-06-01

Three genera are separated here from the South American Capparis s.l. (Capparaceae): (1) Sarcotoxicum, a new monospecific genus restricted to Bolivia, Paraguay, and northern Argentina, composed of Sarcotoxicum salicifolium comb. nov.; (2) Neocalyptrocalyx is validated as seven species, with following five species herewith transferred s.l.: eichleriana nov., N. grandipetala leprieurii maroniensis muco sixth longifolium Colicodendron; and, (3) Mesocapparis stat. scandent- shrubby endemic...

10.3100/1043-4534(2008)13[103:tngocs]2.0.co;2 article EN Harvard Papers in Botany 2008-06-01

Existen evidencias de contaminación por metales pesados en el Estero Salado, localizado la ciudad Guayaquil, provincia del Guayas, costa Ecuador. Con finalidad identificar organismos bioindicadores pesados, se estudió concentración Cd y Pb agua, sedimento, hojas mangles como Rhizophora racemosa, Avicennia germinans, Conocarpus erectus Laguncularia gasterópodos Littorina varia Cerithidea mazatlanica, que encontraban a nivel Puente Portete Salado. Las muestras fueron analizadas...

10.29019/enfoqueute.v9n2.246 article ES Enfoque UTE 2018-06-29

Nine South American species are transferred from Capparis s.l. to the genera Cynophalla and Calanthea declinata comb. nov., C. ecuadorica guayaquilensis heterophylla mattogrossensis polyantha retusa tarapotensis stenosepala nov.

10.3100/1043-4534(2008)13[117:ncisac]2.0.co;2 article EN Harvard Papers in Botany 2008-06-01

Capparis daknongensis D.T. Sy, G.C. Tucker, Cornejo & Joongku Lee, a new species of Capparaceae from Dak Nong province, Vietnam, is described and illustrated. It morphologically similar to C. khuamak, but differs in having pruinose twigs, fewer stamens, longer filaments gynophore, different fruit morphology.

10.5735/085.050.0119 article EN Annales Botanici Fennici 2013-04-01

Following recent mimosoid phylogenetic and phylogenomic studies demonstrating the non-monophyly of genus Albizia , we present a new molecular phylogeny focused on neotropical species in genus, with much denser taxon sampling than previous studies. Our aims were to test monophyly section Arthrosamanea, resolve relationships, gain insights into evolution fruit morphology. We perform Bayesian analysis sequences nuclear internal external transcribed spacer regions trace dehiscence lomentiform...

10.3897/phytokeys.205.76821 article EN cc-by PhytoKeys 2022-08-22

Hispaniolanthus (Capparaceae), a new genus segregated from Capparis, is described and illustrated. It characterized by short simple hairs, minute stipules, spiral phyllotaxy, juvenile individuals with linear leaf blades, mature their young leaves conduplicate, flowers axillary subterminal, solitary and/or rarely paired, without peduncles on remarkably long-pedicels. The calyx decussate closed aestivation, bearing sepals similar in size to that of the petals, four erect divergent nectary...

10.3100/025.014.0103 article EN Harvard Papers in Botany 2009-06-01
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