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Issue: Vol. 690 No. 2: 28 Feb. 2025
Type: Article
Published: 2025-02-28
DOI: 10.11646/phytotaxa.690.2.2
Page range: 189-211
Abstract views: 380
PDF downloaded: 8

Disentangling the taxonomy of Succisella (Caprifoliaceae, Dipsacoideae) in the Iberian Peninsula: an updated synopsis and conservation priorities

Centre for Functional Ecology, Laboratório Associado TERRA, Departamento de Ciências da Vida, Universidade de Coimbra, Calçada Martim de Freitas, 3000-456, Coimbra, Portugal
Centre for Functional Ecology, Laboratório Associado TERRA, Departamento de Ciências da Vida, Universidade de Coimbra, Calçada Martim de Freitas, 3000-456, Coimbra, Portugal
Centre for Functional Ecology, Laboratório Associado TERRA, Departamento de Ciências da Vida, Universidade de Coimbra, Calçada Martim de Freitas, 3000-456, Coimbra, Portugal. Royal Botanic Garden Edinburgh, EH3 5LR, UK.
Centre for Functional Ecology, Laboratório Associado TERRA, Departamento de Ciências da Vida, Universidade de Coimbra, Calçada Martim de Freitas, 3000-456, Coimbra, Portugal. Jardim Botânico da Universidade de Coimbra, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal. Sociedade Portuguesa de Botânica, Travessa do Jardim n.º 3 2615-018 A-dos-Potes, Alverca do Ribatejo, Portugal.
Cantanhede Dipsacaceae Flora iberica IUCN Red Listing lectotypification narrow endemic wetland flora Eudicots

Abstract

Morphological variation in the three Iberian Succisella species (S. andreae-molinae, S. carvalhoana and S. microcephala) is here examined based on novel diagnostic characters, notably the shape of the outermost involucral bracts, stolon and rosette position, and primary peduncle length. Accordingly, a new identification key and synoptic table are presented in a revised taxonomic treatment, with unprecedented photographic iconography of plants in situ. Succisella carvalhoana, here lectotypified, resurfaces as a Critically Endangered narrow endemic, confined to willow swamp forests in coastal central Portugal, requiring urgent conservation attention. Plants from Spain, and east-central Portugal, previously identified as S. carvalhoana are redetermined as S. microcephala, which is, accordingly, identified as a new country record for Portugal. The three distribution centres of S. microcephala (viz. Northern Meseta, Upper Alberche basin, and the southern foothills of the Central System) should be treated as different conservation units, requiring further taxonomic investigation. Succisella andreae-molinae and S. microcephala are preliminarily downlisted to Near Threatened, due to the improved understanding of their occurrence.

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How to Cite

Fura, I., Covelo, F., Sales, F. & Farminhão, J. (2025) Disentangling the taxonomy of Succisella (Caprifoliaceae, Dipsacoideae) in the Iberian Peninsula: an updated synopsis and conservation priorities. Phytotaxa 690 (2): 189–211. https://doi.org/10.11646/phytotaxa.690.2.2