scholarly journals Kupeantha yabassi (Coffeeae-Rubiaceae), a new Critically Endangered shrub species of the Ebo Forest area, Littoral Region, Cameroon

Kew Bulletin ◽  
2021 ◽  
Author(s):  
Maria G. Alvarez-Aguirre ◽  
Martin Cheek ◽  
Bonaventure Sonké
Keyword(s):  
Threatened Species ◽  
Forest Area ◽  
Critically Endangered ◽  
Evergreen Forest ◽  
Similar Species ◽  
Anthropogenic Pressure ◽  
Lowland Forest ◽  
Littoral Region ◽  
Centre Of Diversity ◽  
A New Species

SummaryA new species to science of evergreen forest shrub, Kupeantha yabassi M.G.Alvarez & Cheek (Coffeeae - Rubiaceae), is described, illustrated and compared morphologically with the closely similar species K. pentamera. Restricted so far to a single site in evergreen lowland forest near the Ebo Forest, Yabassi, Littoral Region, Cameroon, this species is Critically Endangered using the IUCN 2012 standard due to habitat clearance driven mainly by agriculture, adding to the growing list of threatened species resulting from anthropogenic pressure on Cameroon forests. A revised key to the six species of Kupeantha is presented. Two distinct geographical and ecological species groupings within the genus are identified and discussed. Notes are given on other narrowly endemic and threatened species in the Ebo Forest area, a threatened centre of diversity important for conservation in the Littoral Region.

scholarly journals Kupeantha yabassi (Coffeeae- Rubiaceae), a new Critically Endangered shrub species of the Ebo Forest area, Littoral Region, Cameroon

2021 ◽  
Author(s):  
Maria G. Alvarez-Aguirre ◽  
Martin Cheek ◽  
Bonaventure Sonké
Keyword(s):  
Threatened Species ◽  
Forest Area ◽  
Critically Endangered ◽  
Evergreen Forest ◽  
Similar Species ◽  
Anthropogenic Pressure ◽  
Lowland Forest ◽  
Littoral Region ◽  
Centre Of Diversity ◽  
A New Species

SummaryA new species to science of evergreen forest shrub, Kupeantha yabassi (Coffeeae - Rubiaceae), is described, illustrated, mapped, and compared morphologically with the closely similar species K. pentamera. Restricted so far to a single site in evergreen lowland forest near the Ebo Forest, Yabassi, Littoral Region, Cameroon, this species is Critically Endangered using the IUCN 2012 standard due to habitat clearance driven mainly by agriculture, adding to the growing list of threatened species resulting from anthropogenic pressure on Cameroon forests. A revised key to the six species of Kupeantha is presented. Two distinct geographical and ecological species groupings within the genus are identified and discussed. Notes are given on other narrowly endemic and threatened species in the Ebo forest area, a threatened centre of diversity important for conservation in Littoral Region.

scholarly journals Uvariopsis dicaprio (Annonaceae) a new tree species with notes on its pollination biology, and the Critically Endangered narrowly endemic plant species of the Ebo Forest, Cameroon

PeerJ ◽  
2022 ◽  
Vol 9 ◽  
pp. e12614
Author(s):  
George Gosline ◽  
Martin Cheek ◽  
Jean Michel Onana ◽  
Eric Ngansop Tchatchouang ◽  
Xander M. van der Burgt ◽  
...  
Keyword(s):  
New Species ◽  
Threatened Species ◽  
Pollination Biology ◽  
Critically Endangered ◽  
Evergreen Forest ◽  
Herbarium Specimens ◽  
Endemic Plant ◽  
Littoral Region ◽  
Centre Of Diversity ◽  
A New Species

Background The Ebo Forest area is a highly threatened centre of diversity in the Littoral Region of Cameroon, globally important for conservation with many threatened species including 68 threatened species of plant, yet not formally protected. The tropical African evergreen forest tree genus Uvariopsis Engl. & Diels (Annonaceae) is characterised by unisexual, usually cauliflorous flowers with a uniseriate corolla of four petals, and two sepals. Cameroon is the centre of diversity of the genus with 14 of the 19 known species. Methods The herbarium collection MacKinnon 51 from Ebo is hypothesized to represent a new species to science of Uvariopsis. This hypothesis is tested by the study of herbarium specimens from a number of herbaria known to hold important collections from Cameroon and surrounding countries. Results We test the hypothesis that MacKinnon 51 represents a new species to science, using the most recent dichotomous identification key, and comparing it morphologically with reference material of all known species of the genus. We make a detailed comparative morphological study focussing on three other Cameroonian species, Uvariopsis solheidii, U. korupensis and the sympatric U. submontana. In the context of a review of the pollination biology of Uvariopsis, we speculate that in a genus otherwise with species with dull, flesh-coloured (pink, red to brown) flowers pollinated (where known) by diptera, orthoptera and blattodea (flies, crickets and cockroaches), the glossy, pale yellow-green flowers of Uvariopsis dicaprio, with additional traits unique in the genus, may be pollinated by nocturnal moths. Based on MacKinnon 51, we formally name Uvariopsis dicaprio Cheek & Gosline (Annonaceae) as new to science, and we describe, and illustrate, and map it. Restricted so far to a single site in evergreen forest in the Ebo Forest, Littoral Region, Cameroon, Uvariopsis dicaprio is provisionally assessed as Critically Endangered using the IUCN, 2012 standard because the forest habitat of this species remains unprotected, and there exist imminent threats of logging and conversion to plantations. Discussion We show that the highest density of species of the genus (12), and of narrow endemics (5), is found in the Cross-Sanaga Interval of SE Nigeria and Western Cameroon. A revised key to the 14 Cameroonian species of Uvariopsis is presented. We review the other seven narrowly endemic and threatened species unique to the Ebo forest of Cameroon and discuss the phytogeographic affinities of the area. Conclusions Uvariopsis dicaprio adds to the growing list of species threatened with extinction at Ebo Forest due to current anthropogenic pressures.

scholarly journals Uvariopsis ebo (Annonaceae) a new, Critically Endangered tree species from the Ebo Forest, Cameroon and a key to the Cameroonian species of Uvariopsis

2021 ◽  
Author(s):  
George Gosline ◽  
Martin Cheek ◽  
Jean Michel Onana ◽  
Eric Ngansop ◽  
Xander van der Burgt ◽  
...  
Keyword(s):  
New Species ◽  
Threatened Species ◽  
Forest Tree ◽  
Critically Endangered ◽  
Evergreen Forest ◽  
Anthropogenic Pressure ◽  
Lowland Forest ◽  
Endangered Tree ◽  
Endangered Tree Species ◽  
Littoral Region

A new species to science of evergreen forest tree, Uvariopsis ebo (Annonaceae) is described, illustrated, mapped, and compared morphologically with the other cauliflorous species of the genus. Restricted so far to a single site in evergreen lowland forest in the Ebo Forest, Yabassi, Littoral Region, Cameroon, this species is Critically Endangered using the IUCN 2012 standard, because the forest habitat of this species remains unprotected, and there exists threats of logging and conversion to plantations. This species adds to the growing list of threatened species resulting from anthropogenic pressure on Cameroon forests. Observations on the unusual corolla structure of the new species are made. A revised key to the 14 Cameroonian species of Uvariopsis is presented. Notes are given on other narrowly endemic and threatened species in the Ebo forest area, a highly threatened centre of diversity in Littoral Region, globally important for conservation.

scholarly journals Anemopaegma kawense (Bignoniaceae), a new species from the Kaw Mountain (French Guiana), with notes on related species and a key to the genus in the Guianas

2021 ◽  
Vol 154 (2) ◽  
pp. 296-306
Author(s):  
Olivier Lachenaud ◽  
Fabiana Firetti ◽  
Lúcia G. Lohmann
Keyword(s):  
New Species ◽  
French Guiana ◽  
Conservation Status ◽  
Iucn Red List ◽  
Herbarium Specimens ◽  
Similar Species ◽  
Centre Of Diversity ◽  
North Eastern ◽  
The Guianas ◽  
A New Species

Background and aims – The genus Anemopaegma (Bignoniaceae) includes around 47 species and has its centre of diversity in Brazil. Here, we describe and illustrate a new species from French Guiana, Anemopaegma kawense, and compare it to the two most similar species, A. foetidum and A. granvillei. We further assess the conservation status of all three species.Material and methods – Morphological descriptions are based on herbarium specimens deposited at BM, BR, CAY, INPA, K, MO, P, SPF, and U, and, in the case of the newly described species, also on field observations. The conservation status assessments follow the IUCN Red List criteria.Key results – Anemopaegma kawense differs from both A. foetidum and A. granvillei by its densely villose twigs, longitudinally plicate leaflets with secondary veins not or hardly prominent below, and tertiary veins impressed below. It is further separated from A. foetidum by the leaflets that are villose below and the calyx that is entirely pubescent outside. On the other hand, A. kawense differs from A. granvillei by the densely lepidote outer surface of the corolla, shorter petiolules, leaflets with midrib impressed above, shorter bracts and bracteoles, inflorescence peduncle exceeding the rachis, and pedicels densely puberulous, not lepidote or only sparsely so at the apex. This species is endemic to the Kaw Mountain in north-eastern French Guiana, where it grows in low stunted forest on laterite; it is assessed as Endangered according to the IUCN criteria. New descriptions are provided for A. granvillei, which is newly reported from Suriname, and for A. foetidum, which is newly reported from French Guiana; these two species are assessed as Endangered and Least Concern, respectively. Lectotypes are designated for A. maguirei, which is here synonymised with A. foetidum, and for A. umbellatum, another synonym of that species. A key to the 12 species of Anemopaegma occurring in the Guianas is presented.

Shedding new light on old species identifications: morphological and genetic evidence suggest a need for conservation status review of the critically endangered bat, Saccolaimus saccolaimus

2009 ◽  
Vol 36 (6) ◽  
pp. 496 ◽  
Author(s):  
Damian J. Milne ◽  
Felicity C. Jackling ◽  
Manpreet Sidhu ◽  
Belinda R. Appleton
Keyword(s):  
Threatened Species ◽  
Conservation Status ◽  
Critically Endangered ◽  
Similar Species ◽  
Museum Specimens ◽  
Museum Collections ◽  
Species Classification ◽  
Accurate Identification ◽  
Identification Of Species ◽  
Vital Component

Information based on the accurate identification of species is a vital component for achieving successful outcomes of biodiversity conservation and management. It is difficult to manage species that are poorly known or that are misidentified with other similar species. This is particularly problematic for rare and threatened species. Species that are listed under endangered species classification schemes need to be identified accurately and categorised correctly so that conservation efforts are appropriately allocated. In Australia, the emballonurid Saccolaimus saccolaimus is currently listed as ‘Critically Endangered’. On the basis of new observations and existing museum specimens, we used a combination of genetic (mitochondrial DNA sequence) and morphological (pelage characteristics, dig III : phalanx I length ratio, inter-upper canine distance) analyses to identify six new geographic records for S. saccolaimus, comprising ~100 individuals. Our analyses also suggested that there are likely to be more records in museum collections misidentified as S. flaviventris specimens. The external morphological similarities to S. flaviventris were addressed and genetic, morphological and echolocation analyses were used in an attempt to provide diagnostic characters that can be used to readily identify the two species in the field. We recommend genetic testing of all museum specimens of Australian Saccolaimus to clarify species’ distributions and provide data for reassessing the conservation status for both S. saccolaimus and S. flaviventris. Museum curators, taxonomists and wildlife managers need to be aware of potential species misidentifications, both in the field and laboratory. Misidentifications that result in misclassification of both threatened and non-threatened species can have significant implications.

scholarly journals Calceolaria flavida (Calceolariaceae) a new endemic species to central Chile 

2021 ◽  
Author(s):  
Nicolás Lavandero ◽  
Ludovica Santilli ◽  
Maria Fernanda Pérez
Keyword(s):  
New Species ◽  
Endemic Species ◽  
Critically Endangered ◽  
Mountain Range ◽  
Similar Species ◽  
Central Chile ◽  
Iucn Categories ◽  
A New Species ◽  
Coastal Mountain

A new species of Calceolaria endemic to central Chile is described. A comparison with morphologically similar species is made, and a key as well as detailed images to differentiate them is provided. The species is only known from the Natural Sanctuary Cerro El Roble, which is part of the coastal mountain range of central Chile and can be considered as  Critically Endangered (CR) under the IUCN categories and criteria.

scholarly journals Vanilla rivasii (orchidaceae), a new species from the colombian pacific region

Lankesteriana ◽  
2014 ◽  
Vol 13 (3) ◽  
Author(s):  
Francisco Molineros Hurtado ◽  
Robert Tulio González Mina ◽  
Nicola S Flanagan ◽  
J Tupac Otero
Keyword(s):  
New Species ◽  
Similar Species ◽  
Pacific Region ◽  
Botanical Exploration ◽  
Centre Of Diversity ◽  
Biogeographic Region ◽  
Flower Traits ◽  
Local Farmer ◽  
Northern South America ◽  
A New Species

We describe a new species of fragrant Vanilla from the Chocó biogeographic region of Western Colombia, named Vanilla rivasii sp. nov. in honor of the local farmer who drew it to our attention. This species is related to the Vanilla hostmannii group, also containing V. dressleri, V. ruiziana and V. cribbiana, with which it shares flower traits such as the showy, yellowish flower with thickened longitudinal venation in the lip apex. Vanilla rivasii is characterised by possessing: a long racemose inflorescence up to 60 cm in length, carrying up to 150 yellow flowers, with two to four open simultaneously; a trilobed labellum with a conspicuously bi-lobulated central lobe; and basally fused lateral sepals. Vanilla rivasii can be distinguished from the most morphologically-similar species, V. cribbiana and V. hostmannii, by the number of veins in the cushion-like structure of the lip and the larger size and higher number of flowers per inflorescence. This discovery highlights northern South America as a centre of diversity for this economically-important genus, and underlines the need for further botanical exploration in the highly biodiverse region of the Chocó.

Silene miksensis (Caryophyllaceae), a new species from eastern Anatolia

Phytotaxa ◽  
2016 ◽  
Vol 273 (4) ◽  
pp. 283 ◽  
Author(s):  
MEHMET FIRAT ◽  
KEMAL YILDIZ
Keyword(s):  
New Species ◽  
Endangered Species ◽  
Pollen Grains ◽  
Critically Endangered ◽  
Similar Species ◽  
Eastern Anatolia ◽  
Perennial Species ◽  
Morphological Comparison ◽  
Critically Endangered Species ◽  
A New Species

A new perennial species, Silene miksensis (Silene sect. Pinifolia, Caryophyllaceae), is described and illustrated from eastern Anatolia, Turkey. A morphological comparison with the morphologically similar species is given as well as the ultrastructure of the seed and pollen grains. S. miksensis is assested as a Critically Endangered species according to IUCN [criterion B2ab (iii)].

A new species of Chrysophyllum (Sapotaceae) from the Brazilian Atlantic forest

Phytotaxa ◽  
2017 ◽  
Vol 331 (1) ◽  
pp. 131
Author(s):  
BRENNO GARDIMAN SOSSAI ◽  
GLÓRIA VIÉGAS-AQUIJE ◽  
FRANCISCO DE ASSIS RIBEIRO DOS SANTOS ◽  
ANDERSON ALVES-ARAÚJO
Keyword(s):  
New Species ◽  
Atlantic Forest ◽  
Critically Endangered ◽  
Similar Species ◽  
Brazilian Atlantic Forest ◽  
Distribution Map ◽  
Pedicel Length ◽  
Short Pedicel ◽  
A New Species ◽  
Iucn Criteria

The new species Chrysophyllum pubipetalum from the Brazilian Atlantic forest of Espírito Santo state is described and illustrated. This new species is characterized by the presence of trichomes on both surfaces of the corolla (a character unique in the genus), channeled petioles, a relatively short pedicel length, and various characters of the fruits and seeds. A distribution map and a table distinguishing the new species from morphologically similar species are also included. As based on IUCN criteria, the species is considered critically endangered.

scholarly journals KAEMPFERIA JENJITTIKULIAE (KAEMPFERIA SUBG. PROTANTHIUM: ZINGIBERACEAE), A NEW, ENDANGERED SPECIES ENDEMIC TO THAILAND

2021 ◽  
Vol 78 ◽  
pp. 1-13
Author(s):  
Nattapon Nopporncharoenkul ◽  
Thunchanok Somnoo ◽  
Wattana Tanming ◽  
Charun Maknoi
Keyword(s):  
New Species ◽  
Endangered Species ◽  
Critically Endangered ◽  
Similar Species ◽  
Conservation Assessment ◽  
Diagnostic Characters ◽  
Iucn Conservation Assessment ◽  
Distribution And Ecology ◽  
A New Species ◽  
Northeastern Thailand

Kaempferia jenjittikuliae, a new species of Kaempferia subg. Protanthium (Zingiberaceae) from Central–Northeastern Thailand, is described and illustrated. The diagnostic characters of this novel taxon are discussed and compared with those of the morphologically similar species Kaempferia lopburiensis, K. rotunda and K. udonensis. Detailed photographs of plants and dissected flowers, and information on phenology, distribution and ecology, are provided. A preliminary IUCN conservation assessment of Critically Endangered (CR) is assigned.

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