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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
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.... -
2006
Master's dissertation
Haageocereus: Taxonomy for the Conservation of the Genus in Peru.
The genus Haageocereus (Cactaceae) is mostly endemic o f Peru, occupying arid areas draining westwards o f Andes. In Peru, Haageocereus is found between 50 to 2800 m, from 79°54’W, 5°7’S (dept. Piura) to 70°52’W, 18°0’S (dept. Tacna). The understanding of this genus has been limited by several nomenclature problems...Moya-Mendez, Natalia Calderon
Conservation assessments, Peru, Taxonomy, IUCN Red List, Plant conservation, and Haageocereus
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2023
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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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2022
Journal article
Two new species of Barleria (Acanthaceae) from the Soutpansberg of Limpopo Province, South Africa.
Two new species of subg. (Acanthaceae) are described from the Soutpansberg Centre of Plant Endemism in Limpopo Province of South Africa: and . The habitat requirements, conservation status and taxonomic affinities of each species are discussed. is considered to be closely allied to the widespread and frequently cultivated southern African...Limpopo Province (South Africa), Conservation status, Barleria, IUCN Red List, Endemic, Soutpansberg (South Africa), South Africa, Restricted range, and Taxonomy
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2016
Journal article
A synopsis of Oxypetalum (Apocynaceae) in Bolivia, with the description of one new species and a key to species in Bolivia.
We present a synopsis of Oxypetalum (Asclepiadoideae, Apocynaceae) in Bolivia. In addition, one new species, Oxypetalum urceolatum, is described, illustrated, and compared to its putative closest relatives. Oxypetalum urceolatum forms a complex with O. erianthum, O. brachystemma, O. dactylostelma, O. dombeyanum, O. molle, O. pearsonii, and O. fuscum. Morphologically, O....New records, Asclepiadoideae, IUCN Red List, Bolivia, Oxypetalum urceolatum, Taxonomy, Eudicots, and Biodiversity