scholarly journals The endemic plant species of Mt Kupe, Cameroon with a new Critically Endangered cloud-forest tree species, Vepris zapfackii (Rutaceae)

Kew Bulletin ◽  
2021 ◽  
Author(s):  
Martin Cheek ◽  
Jean Michel Onana
Keyword(s):  
Endemic Species ◽  
Tree Species ◽  
Cloud Forest ◽  
Conservation Status ◽  
Forest Tree ◽  
Critically Endangered ◽  
Endemic Plant ◽  
Taxonomic Changes ◽  
Mt Kupe ◽  
Endemic Plant Species

SummaryWe revise and update the records of strict and near-endemic species of Mt Kupe, Cameroon respectively from 31 strict endemics in 2004, to 25 today, and with near-endemic species 30, unchanged in number but with turnover. The changes result from new collections, discoveries and taxonomic changes in the last 16 years. While 15 of the provisionally named putative endemic species have now been formally published, a further 18 have not. The majority of the 30 near-endemic species (18) are shared with the adjacent Bakossi Mts, far exceeding the numbers shared with the more distant Mt Etinde-Mt Cameroon, Rumpi Hills and Ebo forest areas (sharing three near-endemic species each with Mt Kupe). We test the hypothesis that a further one of the provisionally named putative Mt Kupe species, Vepris sp. 1 from submontane forest near the summit, is indeed new to science. We compare it morphologically with the two other bicarpellate high altitude Cameroon Highland tree species V. montisbambutensis Onana and V. bali Cheek, concluding that it is a new undescribed species here named as Vepris zapfackii. The new species is illustrated and its conservation status assessed as Critically Endangered using the 2012 IUCN standard, due to habitat clearance from agricultural pressures at its sole location which is unprotected. Vepris zapfackii and V. bali appear unique in African trifoliolate species of the genus in having opposite leaves. Vepris zapfackii differs in having hairy petiolules and midribs and petiolules with the blade decurrent distally, narrowing towards a winged-canaliculate base (vs glabrous and petiolule long, terete), and sparsely golden hairy pistillodes and a glabrous calyx (vs densely black hairy pistillodes, and sepals hairy).

scholarly journals The endemic plant species of Mt Kupe, Cameroon with a new Critically Endangered cloud-forest tree species, Vepris zapfackii (Rutaceae).

2021 ◽  
Author(s):  
Martin Cheek ◽  
Jean Michel ONANA
Keyword(s):  
Endemic Species ◽  
Tree Species ◽  
Cloud Forest ◽  
Conservation Status ◽  
Forest Tree ◽  
Critically Endangered ◽  
Endemic Plant ◽  
Taxonomic Changes ◽  
Mt Kupe ◽  
Endemic Plant Species

We revise and update the records of strict and near-endemic species of Mt Kupe, Cameroon respectively from 31 strict endemics in 2004, to 25 today, and with near-endemic species 30, unchanged in number but with turnover. The changes result from new collections, discoveries and taxonomic changes in the last 16 years. While 15 of the provisionally named putative endemic species have now been formally published, a further 18 have not. The majority of the 30 near-endemic species (18) are shared with the adjacent Bakossi Mts, far exceeding the numbers shared with the more distant Mt Etinde-Mt Cameroon, Rumpi Hills and Ebo forest areas (sharing three near-endemic species each with Mt Kupe). We test the hypothesis that a further one of the provisionally named putative Mt Kupe species, Vepris sp. 1 from submontane forest near the summit, is indeed new to science. We compare it morphologically with the two other bicarpellate high altitude Cameroon Highland tree species Vepris montisbambutensis Onana and Vepris bali Cheek, concluding that it is a new undescribed species here named as Vepris zapfackii. The new species is illustrated, mapped and its conservation status assessed as Critically Endangered using the 2012 IUCN standard due to habitat clearance from agricultural pressures at its sole location which is unprotected. Vepris zapfackii and V. bali appear unique in African trifoliolate species of the genus in having opposite leaves. Vepris zapfackii differs in having hairy petiolules and midribs and petiolules with the blade decurrent distally, narrowing towards a winged-canaliculate base (vs glabrous and petiolule long, terete), and sparsely golden hairy pistillodes and a glabrous calyx (vs densely black hairy pistillodes, and sepals hairy).

scholarly journals Notes on the plants of Bakossi, Cameroon, and the new Cola etugei and Cola kodminensis (Sterculiaceae s. str.)

2020 ◽  
Vol 153 (1) ◽  
pp. 108-119
Author(s):  
Martin Cheek ◽  
Barthelemy Tchiengue ◽  
Isabel Baldwin
Keyword(s):  
Cloud Forest ◽  
Conservation Status ◽  
Central Africa ◽  
Critically Endangered ◽  
Endemic Plant ◽  
Species Discovery ◽  
Tribal Area ◽  
Mt Kupe ◽  
Royal Botanic Gardens ◽  
Endemic Plant Species

Background and aims – This paper reports a further discovery during preparation for a monograph of the genus Cola, and also in the context of a long-term botanical survey in the Cross River-Sanaga interval of west-central Africa, focussing on species discovery and conservation through the Tropical Important Plant Areas programme.Methods – Normal practices of herbarium taxonomy have been applied to study the material collected. The relevant collections are stored in the Herbarium of the Royal Botanic Gardens, Kew, London (K) and at the Institute of Research in Agronomic Development – National Herbarium of Cameroon (YA). Key results – Two species new to science, small trees or shrubs of cloud forest, are formally named from the Bakossi tribal area and assessed for their conservation status. Cola etugei, is endemic to the western slopes of Mt Kupe with conservation status assessed as Critically Endangered (CR B1+2ab(iii)) according to the 2012 criteria of IUCN. Cola kodminensis from the Bakossi Mts is also assessed as Critically Endangered (CR B1+2ab(iii)). This publication increases the number of documented narrowly endemic, threatened species in the Bakossi tribal area, and helps make the case for formal protection of Mt Kupe, which with 33 endemic and near-endemic plant species remains an extremely high candidate for such protection. Further effort is needed to publish the remaining informally named species of this location, and investment to support the protection of the mountain by local communities.

scholarly journals The endemic plant species of Bali Ngemba Forest Reserve, Bamenda Highlands Cameroon, with a new Endangered cloud-forest tree species Vepris onanae (Rutaceae).

2021 ◽  
Author(s):  
Martin Cheek ◽  
Jean Michel Onana ◽  
Sebastian Hatt
Keyword(s):  
New Species ◽  
Tree Species ◽  
Cloud Forest ◽  
Conservation Status ◽  
Male Flower ◽  
Forest Tree ◽  
Endemic Plant ◽  
Lowland Forest ◽  
Forest Reserve ◽  
Male Flowers

We revise and update the records of strict and near endemic species of the Bali Ngemba Forest Reserve, the largest known surviving patch (c. 8 km2 in area) of submontane or cloud forest in the Bamenda Highlands, Cameroon which have lost >96 % of their original forest due to human activities. Nine strict endemics, and 11 near endemics are now documented, a drop from the number recorded after the first survey in 2004, since when five of the provisionally named species have been formally published. We test the hypothesis that a further one of the provisionally named putative Bali Ngemba new species, Vepris sp. A, an 8 - 20 m tall tree from cloud forest in the 1310 - 1600 m altitudinal band, is indeed new to science. We compare it morphologically with other multicarpellate, apocarpous, trifoliolate Cameroon tree species formerly placed in the genus Oricia Pierre until they were subsumed into Vepris by Mziray (1992). These are Vepris trifoliolata (Engl.) Mziray and V. gabonensis (Pierre) Mziray. We conclude that Vepris sp. A is a new undescribed species here named as Vepris onanae. The new species is illustrated, mapped and its conservation status assessed as Endangered using the 2012 IUCN standard due to the threats of habitat clearance from agricultural pressures at its three locations all of which remain formally unprotected. Vepris onanae appears unique among the Guineo-Congolian African oricioid species of Vepris in occurring in cloud forest, the other species, apart from V. renierii of the Albertine Rift, occurring in lowland forest. It also differs in the very broad, (7.8 - ) 11.3 - 18 cm wide leaflets of the flowering stems which have a 6-18(-30) mm long, narrowly triangular acumen (vs leaflets <12 cm wide, acumen absent or short) and in having both subsessile and pedicellate (pedicels 0.25 - 0.3 mm long and 1( - 2) mm long) male flowers (vs male flower pedicels all sessile, or all c. 3 mm long). We report for the first time on stage-dependent leaf heteromorphy in Vepris and characterise a level of sexual dimorphism more advanced than usual in the genus.

scholarly journals Englerodendron libassum (Leguminosae-Detarioideae-Amherstieae), a new Critically Endangered tree species from coastal Liberia

2020 ◽  
Vol 153 (3) ◽  
pp. 487-491
Author(s):  
Carel C.H. Jongkind ◽  
Frans J. Breteler
Keyword(s):  
Tree Species ◽  
Critically Endangered ◽  
Beach Sand ◽  
Coastal Vegetation ◽  
Endemic Plant ◽  
Mature Trees ◽  
Endangered Tree ◽  
Endangered Tree Species ◽  
Local Endemic ◽  
Endemic Plant Species

Background and aims – While searching the banks of a lagoon close to Monrovia for known local endemic plant species, an unknown tree species was discovered. Its unijugate leaves allowed to quickly establish that this legume belongs to Englerodendron. This paper formally describes the finding as a new species and assesses its conservation status.Material and methods – The paper is based on data from fieldwork and morphological investigation of available herbarium material.Key results – The novelty named here E. libassum is one more endemic species from the special coastal vegetation on old beach sand. Only five mature trees were found in a relatively well-known area where not much original forest is left. The species is provisionally assessed as Critically Endangered.

scholarly journals Endemic plants in the flora of Shutman (Sharri Mountain), Kosovo – an analysis of phytogeographical elements and life forms

2021 ◽  
Vol 30 (1) ◽  
pp. 1-11
Author(s):  
Haxhi Halilaj ◽  
◽  
Lirika Kupe ◽  
Avdyl Bajrami ◽  
Pirro Icka ◽  
...  
Keyword(s):  
Endemic Species ◽  
Conservation Status ◽  
Life Forms ◽  
Endemic Plants ◽  
Endemic Plant ◽  
Herbaceous Perennials ◽  
Floristic Elements ◽  
Endemic Plant Species ◽  
First Time ◽  
Distribution Record

This paper aims to present the diversity of endemic plants in the Shutman area and an analysis of chorological groups and life forms. The flora of Shutman comprises 31 endemic plant species. Among them, there are 20 Balkan endemics, 1 stenoendemic and 5 sub-endemic species. They belong to 20 genera and 13 families. The richest among the endemics are families Asteraceae and Caryophyllaceae, both with 4 species. All endemics are herbaceous perennials. Hemicryptophytes dominate among life forms, accounting for 58.06%. Most of the species are Balkan floristic elements (20 species or 64.52%), followed by Southeast European and South European floristic elements, both with 3 taxa (9.68%). A total of 27 species have national or international conservation status. Reporting of Ranunculus degenii Kümmerle & Jav. for the first time in Shutman makes this area the second distribution record of this plant in Kosovo.

scholarly journals Local extirpation is pervasive among populations of Galápagos endemic tomatoes

2019 ◽  
Author(s):  
Matthew J.S. Gibson ◽  
Maria de Lourdes Torres ◽  
Leonie C. Moyle
Keyword(s):  
Endemic Species ◽  
Conservation Status ◽  
Santa Cruz ◽  
Endemic Plant ◽  
Current Conservation ◽  
Factors Affecting ◽  
High Conservation ◽  
Major Factors ◽  
Local Extirpation ◽  
Endemic Plant Species

AbstractThe Galápagos Islands are home to incredible endemic biodiversity that is of high conservation interest. Two such endemic species are the Galápagos tomatoes: Solanum cheesmaniae and Solanum galapagense. Both are known from historical location records, but like many endemic plant species on the Galápagos, their current conservation status is unclear. We revisited previously documented sites of endemic species on San Cristóbal, Santa Cruz, and Isabela, and document the disappearance of >80% of these populations. In contrast, we find that two invasive relatives (Solanum pimpinellifolium and Solanum lycopersicum) are now highly abundant, and in some cases—based on morphological observations—might be hybridizing with endemics. Our findings suggest that expanding human developments and putative interspecific hybridization are among the major factors affecting the prevalence of invasives and the threatened persistence of the endemic populations.

Sideroxylon cochranei (Sapotoideae, Sapotaceae): a new cloud forest tree species from the Sierra de Manantlán and Cuale in western México

Phytotaxa ◽  
2021 ◽  
Vol 498 (2) ◽  
pp. 113-122
Author(s):  
J. ANTONIO VÁZQUEZ-GARCÍA ◽  
FRANCISCO J. SANTANA-MICHEL ◽  
RAMÓN CUEVAS-GUZMÁN ◽  
A. SALOMÉ ORTEGA-PEÑA
Keyword(s):  
Tree Species ◽  
Cloud Forest ◽  
Conservation Status ◽  
Forest Tree ◽  
Forest Trees ◽  
Distribution Map ◽  
Western Mexico ◽  
Montane Cloud Forest ◽  
Sierra De Manantlán ◽  
Iucn Criteria

Sideroxylon cochranei (Sapotaceae) from Sierra de Manantlán and Cuale, in Jalisco, México is here described and illustrated. It is morphologically close to S. salicifolium, but it differs from the latter in being montane cloud forest trees versus sea-shore to lower montane tropical trees, also in having clustered leaves with longer petioles and sepals and larger fruits. A key to the species of Sideroxylon in western Mexico and a distribution map are provided. According to IUCN criteria, its conservation status was assessed as critically endangered (CR).

Notes on the endemic plant species of the Ebo Forest, Cameroon, and the new, Critically Endangered, Palisota ebo (Commelinaceae)

2018 ◽  
Vol 151 (3) ◽  
pp. 434-441 ◽  
Author(s):  
Martin Cheek ◽  
Gerhard Prenner ◽  
Barthélemy Tchiengué ◽  
Robert B. Faden
Keyword(s):  
Conservation Status ◽  
Central Africa ◽  
Critically Endangered ◽  
Botanical Survey ◽  
Endemic Plant ◽  
Species Discovery ◽  
Royal Botanic Gardens ◽  
Endemic Plant Species ◽  
Species Being

Background and aims – This paper reports a further discovery in the context of a long-term botanical survey in the Cross River-Sanaga interval of west-central Africa, focussing on species discovery and conservation.Methods – Normal practices of herbarium taxonomy have been applied to study the material collected. The relevant collecting data are stored in the Herbarium of the Royal Botanic Gardens, Kew, London. Key results – The growing number of endemic species being discovered from the Ebo forest of Cameroon points to the importance of its conservation. Palisota ebo Cheek (Commelinaceae) is described as an additional new species to science and is compared with P. flagelliflora Faden. Restricted so far to the Ebo Forest its conservation status is assessed as Critically Endangered (CR B1+2ab(iii)) according to the 2012 criteria of IUCN.

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