A revision of Xylopia L. (Annonaceae): the species of Tropical Africa

  title={A revision of Xylopia L. (Annonaceae): the species of Tropical Africa},
  author={David M. Johnson and Nancy A. Murray},
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… 

A revision of Xylopia L. (Annonaceae): the species of Madagascar and the Mascarene islands

Taxonomic review supports the hypothesis that the genus dispersed to Madagascar from continental Africa five times, and ten new species are described: Xylopia anomala D.M.Johnson & N.A.Murray, sp.

Flora of Cameroon – Annonaceae Vol 45

This volume of the Flora of Cameroon describes 166 native taxa representing 163 species in 28 native genera within the family Annonaceae, a major pantropical family with 113 genera and about 2550 species.

Monanthotaxis bali (Annonaceae) a new Critically Endangered (possibly extinct) montane forest treelet from Bali Ngemba, Cameroon

The new Monanthotaxis bali is unusual in being a treelet in a predominantly lianescent genus, and in lacking the glaucous underside of the leaf-blades that usually characterises the genus.

A taxonomic revision of the Neotropical genus Cremastosperma (Annonaceae), including five new species

A taxonomic revision of Cremastosperma, a genus of Neotropical Annonaceae occurring in lowland to premontane wet forest, mostly in areas surrounding the Andean mountain chain, identifies 34 species and designate IUCN threat categries for all species.

Lukea gen. nov. (Monodoreae-Annonaceae) with two new threatened species of shrub from the forests of the Udzungwas, Tanzania and Kaya Ribe, Kenya

The genus Lukea is erected for two new species to science, Lukea quentinii Cheek & Gosline from Kaya Ribe, SE Kenya, and Lukea triciae from the Udzungwa Mts, Tanzania, and the placement of Lukea within the Uvariopsis clade is discussed.

Biogeography and ecology in a pantropical family, the Meliaceae

  • M. Heads
  • Environmental Science
    Gardens' Bulletin Singapore
  • 2019
Whether the evolution of Meliaceae can be attributed to ‘radiations’ from restricted centres of origin into new morphological, geographical and ecological space, or whether it is better explained by phases of vicariance in widespread ancestors, alternating with phases of range expansion is discussed.

Twelve new and exciting Annonaceae from the Neotropics

12 new species of Annona, Guatteria, Klarobelia, Tetrameranthus, and Xylopia are described to illustrate the still underestimated diversity of the Neotropical flora, even in well studied plant groups like Annonaceae.

Acta Botanica Brasilica

A molecular phylogeny of the subfamily Ambavioideae (Annonaceae) was reconstructed, indicating that the sub family is not monophyletic, with the monotypic genus Meiocarpidium resolved as the second diverging lineage of Annonaceae.

Molecular phylogeny of Annonaceae species from Binh Chau-Phuoc Buu Nature Reserve based on two chloroplast gene regions

The matK and trnL-F regions of ten Annonaceae species grown in Binh Chau-Phuoc Buu Nature Reserve, Vietnam were successfully amplified and sequenced for the first time and the molecular phylogeny of ten studied species was established.



New species of Xylopia (Annonaceae) from East Africa

SummaryFour new species of the pantropical genus Xylopia L. (Annonaceae) in East Africa are proposed. Two of the new species, Xylopia lukei D. M. Johnson & Goyder and X. tenuipetala D. M. Johnson &

Revision of the African genus Annickia (Annonaceae)

complete revision, including a key to the species, drawings and distribution maps, of the tropical African Annonaceae genus Annickia (= Enantia Oliv., non Falc.) is presented. The exact phylogenetic

New species of Xylopia and Uvaria (Annonaceae) from Tanzania

Two new species of Annonaceae from the threatened lowland coastal forests of Tanzania are described and illustrated. Xylopia mwasumbii D. M. Johnson has distinctive flattened monocarps, unique among

Revision of the African Genus Hexalobus (Annonaceae)

The genus Hexalobus consists of five species characterized by six basally fused petal lobes that are transversally folded in bud, which is unique within Annonaceae, and is restricted to continental Africa.

The Genus Uvariodendron (Engl. & Diels) R. E. Fries (Annonaceae) in East Africa

Despite lack of comparative data the following key will separate the species so far recognizable from Uvariodendron.

Revision of the African genus Uvariastrum (Annonaceae)

The present revision, the first of the genus Uvariastrum for over 100 years, provides an overview of previously published information and discussions on morphology, taxonomy and palynology, and provides preliminary conservation status assessments for each species.

The evolution of African plant diversity

  • H. Linder
  • Environmental Science
    Front. Ecol. Evol.
  • 2014
It is argued that six floras, with distinct geographical centres, different extra-African affinities, ages of radiation and radiation rates, can be delimited: the Austro-temperate, Tropic-alpine, Lowland forest,tropic-montane, Savanna and Arid Floras.

Plastid and Seed Morphology Data Support a Revised Infrageneric Classification and an African Origin of the Pantropical Genus Xylopia (Annonaceae)

The phylogenetic results suggest an African origin for the genus Xylopia and reveal complex biogeographic patterns, likely facilitated by long-distance dispersal.

Macrophotographic wood atlas of Annonaceae.

End-grain photographs of cross-sections of wood of 66 genera and > 90 species of Annonaceae, all from material in the Utrecht Wood collection, are provided for identification.

A new subfamilial and tribal classification of the pantropical flowering plant family Annonaceae informed by molecular phylogenetics

A robust family-wide phylogenetic tree and subsequent classification of Annonaceae is presented, for the first time, using a supermatrix of up to eight plastid markers sequenced from 193 ingroup and seven outgroup species.