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A nonet of novel species of Monanthotaxis (Annonaceae) from around Africa.

ABSTRACT: As part of an ongoing revision of the genus Monanthotaxis Baill. (Annonaceae), nine new species are described and one variety is reinstated to species rank. Two new species from West Africa (Monanthotaxis aquila P.H.Hoekstra, sp. nov. and Monanthotaxis atewensis P.H.Hoekstra, sp. nov.), four new species from Central Africa (Monanthotaxis couvreurii P.H.Hoekstra, sp. nov., Monanthotaxis latistamina P.H.Hoekstra, sp. nov., Monanthotaxis tripetala P.H.Hoekstra, sp. nov. and Monanthotaxis zenkeri P.H.Hoekstra, sp. nov.), one new species from Tanzania (Monanthotaxis filipes P.H.Hoekstra, sp. nov.), one new species from the area around Maputo (Monanthotaxis maputensis P.H.Hoekstra, sp. nov.), one new species from the Comoro Islands (Monanthotaxis komorensis P.H.Hoekstra, sp. nov.) and Monanthotaxis klainei (Engl.) Verdc. var. angustifolia (Boutique) Verdc. is raised to species level leading to the replacement name Monanthotaxis atopostema P.H.Hoekstra, nom. nov. (not Monanthotaxis angustifolia (Exell) Verdc.). Complete descriptions, comparisons with related species, ecological information and IUCN conservation assessments are given for the new species. Five species were classified as critical endangered, two species as endangered, one as vulnerable and one as least concern, warranting the need of further collecting and studying those species.

SUBMITTER: Hoekstra PH

PROVIDER: S-EPMC5029142 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature

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A nonet of novel species of Monanthotaxis (Annonaceae) from around Africa.

Hoekstra Paul H PH Wieringa Jan J JJ Chatrou Lars W LW

PhytoKeys 20160830 69

As part of an ongoing revision of the genus Monanthotaxis Baill. (Annonaceae), nine new species are described and one variety is reinstated to species rank. Two new species from West Africa (Monanthotaxis aquila P.H.Hoekstra, sp. nov. and Monanthotaxis atewensis P.H.Hoekstra, sp. nov.), four new species from Central Africa (Monanthotaxis couvreurii P.H.Hoekstra, sp. nov., Monanthotaxis latistamina P.H.Hoekstra, sp. nov., Monanthot ...[more]

PMID: 27698586

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Project description:A revision of the 45 species of the pantropical genus Xylopia in Tropical Africa includes descriptions of six new species and a new section of the genus. The fruits and seeds of Xylopia show specializations that promote vertebrate dispersal, primarily by hornbills and monkeys. Over half of the African species have an Area of Occupancy (AOO) less than 80 km2, suggesting that they are in need of protection. African species are classified into five sections. Section Neoxylopia , with four species, is centered in the Guineo-Congolian Region and includes X.globosasp. nov. Section Ancistropetala, with three species, occurs in the same region. Both of these sections are endemic to Africa. Section Xylopia, which extends to Madagascar and the American tropics, has only a single species in Africa, X.aethiopica. The three species of section Verdcourtiasect. nov. are restricted to the East African coast and Madagascar. The largest number of African species, (34) belong to section Stenoxylopia, in which the seeds lack the arils found in the other sections and instead have a fleshy sarcotesta. Section Stenoxylopia is divided into two informal groups, one centered in eastern and southern Africa (X.odoratissima group) and the other centered in the wetter forests of western and central Africa (X.acutiflora group). Five new species are described in section Stenoxylopia: Xylopianiloticasp. nov. from Sudan, South Sudan, and Uganda, Xylopiacalvasp. nov. from Nigeria and Cameroon, which is allied to X.phloiodora, and Xylopiamonticolasp. nov. from Nigeria and Cameroon, X.pirataesp. nov. from Ivory Coast and Ghana, and X.unguiculatasp. nov. from Gabon. The latter three species are segregates of the former Xylopiaacutiflora s. l. One new combination is made at the species level, X.shirensiscomb. nov. Keys, descriptions, illustrations, distribution maps, and an index to numbered collections document diversity and assist with species identification. The name Unonaoliveriana Baill. was found to pre-date the name Unonalepidota Oliv., requiring the combination Meiocarpidiumoliverianumcomb. nov.

Dataset Information

A nonet of novel species of Monanthotaxis (Annonaceae) from around Africa.

Publications

A nonet of novel species of <i>Monanthotaxis</i> (Annonaceae) from around Africa.

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