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| Justicia cubangensis I.Darbysh. & Goyder
in Darbyshire & Goyder, D.J. 2019.
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Abstract
Two new species of Justicia sect. Monechma, Justicia cubangensis and J. eriniae, are described from Angola. Their affinities are reviewed, together with a discussion on the correct generic name to apply to these species. A conspectus of Justicia sect. Monechma ‘Group I’ in Angola is presented, including a key to the species and notes on habitat and distribution for each taxon. Two new combinations and one new name are provided for species for which there was no previous name available in Justicia, and lectotypes are proposed for four names. Twelve species are recognised in this group in total, eight of which are currently believed to be endemic to Angola. Justicia subsessilis is recorded in Angola for the first time, and J. laeta is placed in sect. Monechma, having previously been tentatively referred to sect. Tyloglossa. Monechma carrissoi is considered to be conspecific with J. virgultorum and so is synonymised here. In addition, the botanical importance of the type locality of J. cubangensis, the Cuchi River gorge of the Cubango drainage, is highlighted and two further new provincial records for Cuando Cubango are noted from this site: Eriocaulon angustibracteum (Eriocaulaceae) and Crepidorhopalon schweinfurthii (Linderniaceae).
Keywords: Cuando Cubango; Huila; Namibe; justicioid; miombo; taxonomy
Justicia cubangensis I.Darbysh. & Goyder, sp. nov.
Etymology. The epithet ‘cubangensis’ denotes the Cubango River drainage in which this species is found.
Justicia eriniae I.Darbysh., sp. nov.
Etymology. The epithet ‘eriniae’ honours Dr. Erin Tripp of the Museum of Natural History (COLO Herbarium) at the University of Colorado, a leading authority on Acanthaceae, great all-round naturalist and collector of the type specimen of this species. Dr. Trip
Darbyshire, I. and Goyder, D.J. 2019. Notes on Justicia sect. Monechma (Acanthaceae) in Angola, including Two New Species. Blumea - Biodiversity, Evolution and Biogeography of Plants. 64; 97–107. DOI: 10.3767/blumea.2019.64.02.01
