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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
A biogeographical appraisal of the threatened South East Africa Montane Archipelago ecoregion..
Recent biological surveys of ancient inselbergs in southern Malawi and northern Mozambique have led to the discovery and description of many species new to science, and overlapping centres of endemism across multiple taxa. Combining these endemic taxa with data on geology and climate, we propose the ‘South East Africa Montane... -
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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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
A new and possibly carnivorous species of Crepidorhopalon (Linderniaceae) from Mozambique.
The new species Crepidorhopalon droseroides from Mozambique is described and illustrated. It represents the third strict Mozambique endemic in Linderniaceae, and it differs from all known species of Crepidorhopalon in the long sticky glandular hairs. The hypothesis that the species may be carnivorous is discussed. The Conservation Status is preliminarily...Fischer, Eberhard ; Wursten, Bart ; Darbyshire, Iain
Taxonomy, IUCN Red List, Crepidorhopalon droseroides, Mozambique, Endemics, Philcoxia, New species, and Carnivory
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2023
Journal article
A new species of Lindernia (Linderniaceae) from Tanzania.
The new species Lindernia sallyae from Tanzania, Mpanda District is described and illustrated. It differs from Lindernia linearifolia and L. monroi in the lack of basal rosulate leaves, the taller habit, the calyx with shorter tube and the acute lobes, the yellow corolla with purple marks and veins, the larger... -
2023
Journal article
Notes on Isoglossinae (Acanthaceae) in Madagascar, with four new species of Isoglossa.
Current generic delimitation in subtribe Isoglossinae of Acanthaceae is discussed using available morphological and molecular data. Particular consideration is given to the small genera endemic to Madagascar — Benoist, S.Moore, Benoist and the illegitimate Benoist — and how these relate to the current circumscription of Oerst. The relative merits and...Darbyshire, Iain ; Onjalalaina, Guy E. ; Callmander, Martin W. ; Phillipson, Peter B. ; Kiel, Carrie A.
Diversity, Pollen, Taxonomy, IUCN Red List assessments, and Generic delimitation
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2018
Journal article
A new species of Ochna (Ochnaceae) from the Barberton Mountains of Mpumalanga, South Africa.
Ochna barbertonensis is described as a new species from the Barberton Mountains in Mpumalanga, South Africa. The new species is characterised by its suffrutescent habit, elongate-deltoid stipules sometimes with broadened base, mucronate leaf tip and high anther to filament ratio, where the anthers are ca. two times longer than the... -
2022
Journal article
Cladoceras rovumense sp. nov. (Gentianales-Rubiaceae), a new species from southeast Tanzania and northeast Mozambique.
Following a review of the circumscription of the genus Cladoceras Bremek. (Rubiaceae) in relation to Tarenna Gaertn., the new species Cladoceras rovumense I.Darbysh., J.E.Burrows & Q.Luke sp. nov. is described from the dry forests of the Rovuma Centre of Plant Endemism (CoE) in southeast Tanzania and northeast Mozambique. This species...Darbyshire, Iain ; Burrows, John E. ; Luke, Quentin ; Langa, Clayton
Threatened, Cladoceras rovumense, New species, New record, Mozambique, Tanzania, Rovuma, and Taxonomy