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Wei N, Mutie FM, Mwachala G, Grace OM, Hu GW, Wang QF. Euphorbiambuinzauensis, a new succulent species in Kenya from the Synadenium group in Euphorbiasect.Monadenium (Euphorbiaceae). PhytoKeys 2021; 183:21-35. [PMID: 34720628 PMCID: PMC8523493 DOI: 10.3897/phytokeys.183.70285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 08/30/2021] [Indexed: 05/11/2023]
Abstract
Euphorbiambuinzauensis, a succulent new species of the Synadenium group in Euphorbiaceae from Makueni County, Kenya, is described and illustrated. Morphologically, it is most similar to E.pseudomollis, but differs mainly by its shrubby habit (up to 4 m), abaxial leaves surfaces with densely stellate hairs, 2-4-forked cymes, smaller bracts (ca. 2.5 × 3.0 mm), smaller cyathia (6 mm wide), crimson glands without narrow smooth margin, smaller fruits (ca. 8 × 7 mm) and ovoid seeds (ca. 1.8 × 2.2 mm). Furthermore, we performed a molecular phylogenetic analysis of the Synadenium group in Euphorbiasect.Monadenium, based on complete nuclear ribosomal DNA (nrDNA) datasets. This phylogenetic inference also supports it to be a distinct species. The new species is assessed as Endangered using the IUCN criteria.
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Affiliation(s)
- Neng Wei
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, CN-430074, ChinaRoyal Botanic GardensRichmondUnited Kingdom
- Royal Botanic Gardens, Kew, Richmond, Surrey, TW9 3AE, UKWuhan Botanical Garden, Chinese Academy of SciencesWuhanChina
- University of Chinese Academy of Sciences, Beijing, CN-100049, ChinaUniversity of Chinese Academy of SciencesBeijingChina
| | - Fredrick Munyao Mutie
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, CN-430074, ChinaRoyal Botanic GardensRichmondUnited Kingdom
- University of Chinese Academy of Sciences, Beijing, CN-100049, ChinaUniversity of Chinese Academy of SciencesBeijingChina
| | - Geoffrey Mwachala
- East African Herbarium, National Museums of Kenya, P.O. Box 451660-0100, Nairobi, KenyaNational Museums of KenyaNairobiKenya
| | - Olwen M. Grace
- Royal Botanic Gardens, Kew, Richmond, Surrey, TW9 3AE, UKWuhan Botanical Garden, Chinese Academy of SciencesWuhanChina
| | - Guang-Wan Hu
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, CN-430074, ChinaRoyal Botanic GardensRichmondUnited Kingdom
- Center of Conservation Biology, Core Botanical Gardens, Chinese Academy of Sciences, Wuhan, CN-430074, ChinaCore Botanical Gardens, Chinese Academy of SciencesWuhanChina
- Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, CN-430074, ChinaSino-Africa Joint Research Center, Chinese Academy of SciencesWuhanChina
| | - Qing-Feng Wang
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, CN-430074, ChinaRoyal Botanic GardensRichmondUnited Kingdom
- Center of Conservation Biology, Core Botanical Gardens, Chinese Academy of Sciences, Wuhan, CN-430074, ChinaCore Botanical Gardens, Chinese Academy of SciencesWuhanChina
- Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, CN-430074, ChinaSino-Africa Joint Research Center, Chinese Academy of SciencesWuhanChina
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