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Morphological, karyological and biogeographical study of the Algerian endemic species Salvia jaminiana deNoé (Lamiaceae), with taxonomic and evolutionary interpretations

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Academic year: 2021

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Morphological, karyological and biogeographical study of the

Algerian endemic species Salvia jaminiana de Noé

(Lamiaceae), with taxonomic and evolutionary interpretations

Authors

Mohamed Malik Mahdjoub, Tassadit Zemouri, Hassina Benmouhoub, Mohamed Sahnoune Publication date 2018/5/1 Journal Flora Volume 242 Pages 102-119 Publisher Urban & Fischer Description

Like all the nineteen species of Salvia present in Algeria, especially the endemics, S.

jaminiana de Noé is taxonomically and biogeographically understudied. The present paper

aims mainly, after a detailed morphological and cytogenetic characterization, to clarify the botanical classification and delimit the area of distribution of this rare species. The evolutionary aspects of its main morphological, cytogenetic and biogeographical

characteristics are also addressed. The results show clearly that S. jaminiana is a threatened species restricted to the vicinity of Biskra (Eastern North Saharan Algeria), adapted to arid environment with a suffruticose habit, narrowly 2-pinnatifid leaves, densely hairy

inflorescences and white flowers. Based on morphology and palynology, it belongs in Section Plethiosphace Benth. Its closest relatives are S. verbenaca L., S. lanigera Poir., S.

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