Institute of Jamaica

Kingston, Jamaica

Institute of Jamaica

Kingston, Jamaica

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Franck A.R.,University of South Florida | Lewis P.A.,University of the West Indies | Oberli A.,Bermuda Mount | Haynes-Sutton A.,Marshall's Pen | And 2 more authors.
Phytotaxa | Year: 2017

Exostema orbiculatum is transferred to the genus Erithalis based on morphology and ITS sequences, resulting in the new combination Erithalis orbiculata. This species, endemic to west-central Jamaica, is unique in Erithalis for its sessile, orbicular leaves, acuminately spinescent stipules, and sessile inflorescence and flowers. © 2017 Magnolia Press.


PubMed | Jardin Botanico Nacional Dr. Rafael Ma. Moscoso, Institute of Jamaica, Federal University of Vales do Jequitinhonha and Mucuri, University of Sao Paulo and 13 more.
Type: | Journal: Molecular phylogenetics and evolution | Year: 2017

Myrteae (c. 2500 species; 51 genera) is the largest tribe of Myrtaceae and an ecologically important groups of angiosperms in the Neotropics. Systematic relationships in Myrteae are complex, hindering conservation initiatives and jeopardizing evolutionary modelling. A well-supported and robust phylogenetic hypothesis was here targeted towards a comprehensive understanding of the relationships within the tribe. The resultant topology was used as a base for key evolutionary analyses such as age estimation, historical biogeography and diversification rate patterns. One nuclear (ITS) and seven chloroplast (psbA-trnH, matK, ndhF, trnl-trnF, trnQ-rps16, rpl16 and rpl32-trnL) DNA regions for 115 taxa representing 46 out of the 51 genera in the tribe were accessed and analysed using maximum likelihood and Bayesian inference tools for phylogenetic reconstruction. Dates of diversification events were estimated and contrasted using two distinct fossil sets (macro and pollen) in BEAST. The subsequent dated phylogenies were compared and analysed for biogeographical patterns using BioGeoBEARS and diversification rates using BAMM. Myrteae phylogeny presents strong statistical support for three major clades within the tribe: Australasian group, Myrtus group and Main Neotropical Lineage. Dating results from calibration using macrofossil are an average of 20 million years older and show an early Paleocene origin of Myrteae, against a mid-Eocene one from the pollen fossil calibration. Biogeographic analysis shows the origin of Myrteae in Zealandia in both calibration approaches, followed by a widespread distribution throughout the still-linked Gondwana continents and diversification of Neotropical endemic lineages by later vicariance. Best configuration shift indicates three points of acceleration in diversification rates, all of them occurring in the Main Neotropical Lineage. Based on the reconstructed topology, several new taxonomic placements were recovered, including: the relative position of Myrtus communis, the placement of the Blepharocalyx group, the absence of generic endemism in the Caribbean, and the paraphyletism of the former Pimenta group. Distinct calibration approaches affect biogeography interpretation, increasing the number of necessary long distance dispersal events in the topology with older nodes. It is hypothesised that biological intrinsic factors such as modifications of embryo type and polyploidy might have played a role in accelerating shifts of diversification rates in Neotropical lineages. Future perspectives include formal subtribal classification, standardization of fossil calibration approaches and better links between diversification shifts and trait evolution.


Torres-Cambas Y.,University of the East of Cuba | Trapero-Quintana A.D.,University of the East of Cuba | Lorenzo-Carballa M.O.,University of Vigo | Newell D.,Institute of Jamaica | And 2 more authors.
International Journal of Odonatology | Year: 2015

The Antilles harbour several island endemic odonate species, including some palaeoendemics, within a relatively small and anthropized area. Such attributes give this archipelago a special significance for the conservation of Odonata in the Neotropics. However, despite the importance of these islands, inadequately surveyed regions persist, mainly in the Greater Antilles, and there is not enough information to set IUCN threat categories for eight species supposed to be at risk, which are currently classified as data deficient (DD). To update the distribution of endangered (EN), vulnerable (VU) and DD species, we conducted a series of field surveys in Dominican Republic, Jamaica and Cuba, and compiled data from literature, museum collections as well as personal communications. We sampled a total of 37 species, including Microneura caligata, Phylolestes ethelae and Hypolestes clara (EN); H. trinitatis (VU); and Diceratobasis macrogaster, Neoneura maria and Protoneura capillaris (DD). We provide new locality records for M. caligata, N. carnatica (DD), N. maria (DD), P. capillaris, H. clara, H. trinitatis and Erythrodiplax bromeliicola (DD). According to our results, we suggest changing the category of D. macrogaster, D. melanogaster, N. carnatica, N. maria and P. capillaris to VU. © 2015 Worldwide Dragonfly Association.


Judd W.S.,University of Florida | Lonta G.M.,University of Florida | Campbell K.C.E.,Institute of Jamaica
Journal of the Botanical Research Institute of Texas | Year: 2011

Miconia pyramidalis is reported for the first time for the flora of Jamaica. The species is largely restricted to the Greater Antilles and is much less common in Jamaica than the closely related and more broadly distributed M laevigata.


Judd W.S.,University of Florida | Lonta G.M.,University of Florida | Endara L.,University of Florida | Campbell K.C.E.,Institute of Jamaica
Journal of the Botanical Research Institute of Texas | Year: 2011

Miconia pseudorigida, a rare and endangered species that has previously been collected only four times, was recently located and re-collected in the John Crow Mountains, about two miles southwest of Ecclesdown. On the basis of field observations, photographs and herbarium specimens, we update published accounts of its morphological variation and conservation status. Most noteworthy, the species consistently has intensely rose-red abaxial leaf surfaces on the new growth, a feature not previously known and useful in distinguishing M pseudorigida from the related M. rigida. Additionally, the color of the supranodal glandular hairs is reported for the first time.


Rose P.E.,University of the West Indies | Webber D.F.,University of the West Indies | Commock T.,Institute of Jamaica
Acta Horticulturae | Year: 2011

The Jamaican Virtual Herbarium (JVH) is an online, botanical database utility. It provides patrons with remote access to over 1,900 herbarium specimen records and images from the University of the West Indies (Mona Campus) and Institute of Jamaica (IOJ) herbaria. These are Jamaica's two, internationally recognised, herbaria. The JVH was developed based on the integration of the Windows XP ® operating system with three open-source software utilities; namely, the Apache ® web server, My Structured Query Language (MySQL ®) database management system and the Hypertext Pre-processor (PHP ™) scripting language. Together they constitute the popularly known WAMP software application stack. The incorporation of these free, developer-community supported utilities was integral to the success of the JVH. The WAMP architecture currently facilitates web-based interfaces that handle in-house data entry and maintenance as well as public (end-user) database queries from the World Wide Web. The JVH currently serves a worldwide, mainly botanically inclined, community and records, on average, 85 visits per month; 56 of these being new monthly visitors (March - August, 2010). The JVH may be found at www.jamaicavirtualherbarium.com. This paper demonstrates the applicability of open source webpage development utilities to areas of specialised research where horticultural applications could also benefit.


Aguirre-Santoro J.,New York Botanical Garden | Campbell K.C.S.E.,Institute of Jamaica | Proctor G.R.,Institute of Jamaica
Phytotaxa | Year: 2016

Recent botanical expeditions to the Dolphin Head Mountains in western Jamaica allowed the collection of different specimens of a new species, Hohenbergia rohan-estyi, an enigmatic plant that resembles the also Jamaican-endemic H. negrilen- sis. In this study, we describe H. rohan-estyi and include notes on its geographical distribution, habitat, conservation status and taxonomy. The length of the stipes and number of flowers per spike permit the differentiation of H. rohan-estyi from H. negrilensis. In addition, the geographic distributions of these two species do not overlap, as H. rohan-estyi inhabits mountainous forests of the Dolphin Head region while H. negrilensis occurs in coastal areas of western Jamaica. Finally, H. rohan- estyi is the third species of Hohenbergia reported as endemic to the Dolphin Head Mountains, indicating the importance of this area in the evolution and conservation of the genus in Jamaica and the Caribbean. © 2016 Magnolia Press.


Priestap H.A.,Florida International University | Priestap H.A.,Fairchild Tropical Botanic Garden | Chin C.,Florida International University | Chin C.,Fairchild Tropical Botanic Garden | And 9 more authors.
Journal of Essential Oil Research | Year: 2014

Portlandia (Rubiaceae) is a genus endemic to Jamaica. The volatile organic constituents of P. albiflora, P. coccinea, P. grandiflora, P. latifolia and P. proctorii were analyzed by headspace solid-phase microextraction (SPME) coupled with capillary mass spectrometry. The main constituents detected in these species are 1-penten-3-one, hexanal, (E)-2-hexenal, linalool, borneol and methyl salicylate. All species are rich in aliphatic aldehydes, mainly represented by (E)-2-hexenal, that range from 17% (P. latifolia) to 90% (P. coccinea) of total volatiles. The high content of aldehydes is characteristic to Portlandia species and may serve as a chemical marker to differentiate Portlandia from related genera within the Rubiaceae. © 2013 Taylor & Francis.


Commock T.,Institute of Jamaica | Campbell K.C.S.E.,Institute of Jamaica | Meikle J.,Institute of Jamaica | Francisco-Ortega J.,Florida International University | And 2 more authors.
Brittonia | Year: 2015

The nomenclature of Dendrocousinsia (Hippomaneae, Euphorbiaceae) is revised and we present four new taxonomic combinations within the genus. It comprises six species and one variety. Extensive field surveys were conducted and conservation assessments are presented based on the IUCN redlist system for threatened species. Three of the species are Critically Endangered as each of them has a very restricted distribution. The other three species are Vulnerable. There has been a long debate pertinent to the taxonomic placement of Dendrocousinsia. Until extensive phylogenetic studies are performed within the Hippomaneae we propose to maintain this group as a distinct genus and not as a section within Sebastiania. This study highlights Dendrocousinsia as restricted to Jamaica with a high conservation priority because of its uniqueness and the Critically Endangered status of half of its species. © 2014, The New York Botanical Garden.

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