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2024
Journal article
Two new species of Anthurium sect. Urospadix (Araceae) endemic to the restinga vegetation of Bahia, Brazil
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2024
Journal article
Keetia nodulosa sp. nov. (Rubiaceae - Vanguerieae) of West-Central Africa: bacterial leaf nodulation discovered in a fourth genus and tribe of Rubiaceae.
Keetia nodulosa Cheek, a cloud forest climber nearly endemic to Cameroon, with a single record from Nigeria, is described and illustrated. It is remarkable as the first known species to be recorded with bacterial leaf nodules (BLN) in the genus Keetia, and also, in the tribe Vanguerieae. Other genera in... -
2024
Journal article
New taxa of Barleria sect. Prionitis (Acanthaceae) from the Horn of Africa biodiversity hotspot in Somalia.
Two new taxa in Barleria L. sect. Prionitis Nees (Acanthaceae) are described from Somalia, namely Barleria biramosa Defty & I.Darbysh. from central Somalia and B. compacta Malombe & I.Darbysh. subsp. minima I.Darbysh. & Defty from the northeast coastal region. These taxa are further endemics of the Horn of Africa biodiversity...Defty, Ellie ; Darbyshire, Iain
Taxonomy, Conservation, Barleria compacta, Horn of Africa, Barlerieae, Barleria biramosa, New species, Somalia, IUCN Red List, and Diversity
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2024
Journal article
Expanding our knowledge of the coffee family in continental Africa: a synopsis of the genus Pyrostria (Rubiaceae).
A summary of the species of from continental Africa is presented, including full descriptions of three new species, , and . from the coastal forests of the Tanzania-Mozambique border region, and one new subspecies, subsp. from Zambia. is the first species with plurilocular (3-lobed) fruits and the second hermaphrodite species...Matheka, Kennedy W. ; Goyder, David ; Darbyshire, Iain
Conservation, Pyrostria, IUCN Red List, Rubiaceae, Africa, Rovuma Centre of Endemism, Taxonomy, Vanguerieae, and New species
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2024
Journal article
Four new deciduous species of Hyperacanthus (Rubiaceae: Gardenieae) from western Madagascar: the sofikomba alliance.
The genus comprises 11 species, nine in Madagascar and two in Africa, although many Madagascan species remain undescribed. All Madagascan species of are evergreen trees occurring in humid and semi-humid forest. Four deciduous species occur in the dry forests of northern, western, and southern Madagascar but are unknown to science.... -
2023
Journal article
Ardisia krauensis, a new species of Primulaceae (Myrsinoideae) from Peninsular Malaysia.
Ardisia krauensis, a new species of Primulaceae from Peninsular Malaysia, is described and illustrated. The new species is assignable into subgenus (§) on account of specialised lateral reproductive branches bearing a terminal inflorescence subtended by foliose bracts. Morphologically, the new species mostly resembles in having elliptic leaves. However, the new... -
2023
Master's dissertation
Investigating the Diversity of the Citrus Family (Rutaceae) in Mozambique.
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2023
Journal article
Phylogenomic inference of the African tribe Monodoreae (Annonaceae) and taxonomic revision of Dennettia, Uvariodendron and Uvariopsis.
Monodoreae (Annonaceae) is a tribe composed of 11 genera and 90 species restricted to the tropical African rain forests. All the genera are taxonomically well circumscribed except the species rich genera and which lack a recent taxonomic revision. Here, we used a robust phylogenomic approach, including all the 90 currently... -
2023
Journal article
A further new species of Isoglossa (Acanthaceae) from the Eastern Arc Mountains of Tanzania.
I.Darbysh. & Hemp (Acanthaceae), from submontane moist forest at Mwala in the South Pare Mountains of northeastern Tanzania, is described and illustrated. This species is considered to be related to (S.Moore) Lindau and (Vahl) Brummitt & J.R.I.Wood, which are widespread in the montane forests of eastern Africa, but it clearly...Darbyshire, Iain ; Hemp, Andreas
Conservation, New species, Isoglossinae, IUCN Red List, Eastern Arc Mountains (Tanzania), Taxonomy, Extinction risk, and Isoglossa
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2023
Journal article
Discovery and conservation of Monanthotaxis bali (Annonaceae) a new Critically Endangered (possibly extinct) montane forest treelet from Bali Ngemba, North West Region, Cameroon.
is the only known, solely montane (occurring solely above 2000 m alt.) species of the genus. It joins (Rwanda) and (Tanzania), two other species that can also occur above 2000 m alt. is an addition to the small number (28) of the tree species of the surviving montane forests of...