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 species , whilst is morphologically most similar to which has a restricted distribution in northern South Africa and Zimbabwe. Remarkably, the two new species are postulated to occasionally hybridise within the Soutpansberg. Both species are currently assessed as of Least Concern despite their restricted ranges. is noted to be amongst the most densely spiny species of and, indeed, is a contender as one of the spiniest species of plant in South Africa

The demise of Monechma: new combinations and a new classification in the resurrected genera Meiosperma and Pogonospermum (Acanthaceae).

Recent molecular phylogenetic results have demonstrated that s.l., a group of plants with ecological importance in the savanna and succulent biomes of sub-Saharan Africa, is polyphyletic with two discrete lineages recognisable. In the present work, we recognise Groups I and II at the generic rank, which can be distinguished by differences in inflorescence characteristics and seed morphology. The nomenclatural implications of these findings are investigated. The lectotype of , Hochst., is a part of a small lineage of plants closely allied to L. sect. (Solms) Benth. for which the earliest valid name is found to be Raf. Hence, is synonymised within , which comprises six accepted species and two undescribed taxa. The majority of species of former s.l. are resolved within the second lineage for which the only validly published generic name is Hochst. This resurrected genus comprises 34 accepted species plus two undescribed taxa. displays considerable morphological variation and is here subdivided into six sections based primarily on differences in plant habit, inflorescence form, calyx, bract and bracteole venation, and seed indumentum. The new combinations and new sections are validated, and seven accepted species names are lectotypified