Two new species of Campanula (Campanulaceae) from the island of Santo Antão, Cabo Verde archipelago

Gardère, Mathieu L.

doi:10.11646/phytotaxa.197.2.3

Cited by 4 publications

(5 citation statements)

References 16 publications

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“…and Campanula jacobaea C.Sm. ex Hook, were listed for the archipelago (Sánchez‐Pinto et al., ), and recently, Gardère () described two new species for Santo Antão Island (i.e., C. feijoana Gardère and C. hortelensis Gardère, which were previously identified as C. jacobaea ). Finally, Wahlenbergia lobelioides (L.f.) Link subsp.…”

Section: Introductionmentioning

confidence: 99%

Phylogenetic relationships and phylogeography of relevant lineages within the complex Campanulaceae family in Macaronesia

Menezes

Romeiras

Sequeira

et al. 2017

Ecology and Evolution

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Macaronesia has long been recognized as a natural model for studying evolutionary processes in plant diversification. Several studies have attempted to focus on single lineages, and few have covered the diversification of a family across all the archipelagos. We used a comprehensive sample to clarify the phylogenetic relationships and the biogeographic history of the Macaronesian Campanulaceae. Hypotheses related to the colonization of these archipelagos will be used to examine the diversification patterns of different lineages. We sequenced the ITS region and six cpDNA markers (atpB, matK, petD, rbcL, trnL‐F, and psbA‐trnH) from 10 Campanulaceae species, including seven endemic species in Macaronesia. The phylogeny of these taxa was reconstructed using maximum parsimony, maximum likelihood, and Bayesian inference. To study the relationships within each lineage, haplotype networks were calculated using NeighborNet and TCS algorithms. Moreover, data were combined with fossil information to construct time‐calibrated trees for the Macaronesian Campanulaceae species. The phylogenetic analyses are largely congruent with current taxon circumscriptions, and all the endemic genera formed monophyletic clades, namely Azorina in Azores; Musschia in Madeira; and Campanula in Cape Verde. The Azorina clade and the Cape Verde endemic Campanula may share a common ancestor in North Africa, and the divergence was dated ca. 12.3 million years ago (Mya). The divergence of the Musschia clade began in the Pliocene ca. 3.4 Mya. Moreover, several examples of intraspecific variation were revealed among the native species with a clear geographic structured patterns, suggesting that cryptic diversity might exist within the native Macaronesian Campanulaceae when compared to the close mainland taxa (e.g., Campanula erinus, Trachelium caeruleum), but additional studies are needed to support the molecular data. This study highlights the power of combining data (e.g., phylogeny and divergence times, with species distribution data) for testing diversification hypotheses within the unique Macaronesian flora, providing useful information for future conservation efforts.

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Section: Introductionmentioning

confidence: 99%

Phylogenetic relationships and phylogeography of relevant lineages within the complex Campanulaceae family in Macaronesia

Menezes

Romeiras

Sequeira

et al. 2017

Ecology and Evolution

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“…Alarcón et al (2013), unable to find reliable identifying characters nor geographic or genetic evidence to support the recognition of two species, retained a single, highly variable species, C. jacobaea, for the entire archipelago. More recently, the bellflowers from Santo Antão, hitherto identified as C. jacobaea, were described as two new species under C. feijoana Gardère and C. hortelensis Gardère (Gardère, 2015). These two species are clearly distinguishable from other CVB species by their infundibuliform corolla, constricted in its median part but distinguish from one another by several floral and foliar characters as the size, shape and position of the lobes and appendages of the calyx, and the shape and texture of the lamina of the rosette leaves.…”

Section: Taxonomic Genesis and Successive Conceptsmentioning

confidence: 99%

“…Although the geographic range of C. jacobaea was reduced in 2015 to the islands of Santiago, São Nicolau, and São Vicente (Gardère, 2015), the species still was considered widespread in the archipelago with a high level of polymorphism. This is particularly pronounced in its floral characters.…”

Section: Campanula Jacobaea Complex: One or Several Species?mentioning

confidence: 99%

“…Etymology. -The species is dedicated to the Portuguese naturalist João da Silva Feijó (Gardère, 2015) who undertook the first scientific expedition entirely dedicated to the study of the natural history of the Cabo Verde islands between 1783 and 1796 during the "Philosophical Journeys" (Gardère et al, 2019a) and who made the first collections of CVB between 1783 and 1789.…”

Section: A B Cmentioning

confidence: 99%

“…More recently, the bellflowers from Santo Antão were described as two new species (Gardère, 2015): (1) C. feijoana (Fig. 7A -E) was described with pauciflorous inflorescences, calyx-lobes spread-out to obliquely erect prolonged by reflexed appendages and pseudorosette leaves spatulate with papery lamina, whereas (2) C. hortelensis (Fig.…”

Section: A B Cmentioning

confidence: 99%

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Codonographia Gorgonum, or the description of a pleiad of bellflowers (Campanula, Campanulaceae) from the Cabo Verde archipelago

Gardère¹,

Florence²,

Müller³

et al. 2021

Candollea

787

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The previous taxonomic study of Cabo Verdean bellflowers (Campanula L., Campanulaceae) recognized four endemic species. In light of a recently published geometric morphometric study, the reassessment of the Campanula jacobaea complex allows to restrict Campanula jacobaea C. Sm. ex Webb to the island of Santiago. A new lectotype is proposed for this name that conforms to the protologue. Three further new species are described: Campanula monteverdensis Gardère from São Vicente, Campanula fransinea Gardère and Campanula cochleromena from São Nicolau, and Campanula vicinituba Gardère from Santo Antão. Campanula hortelensis Gardère, also from Santo Antão is placed in synonym of Campanula feijoana Gardère. Seven species are recognized in the Cabo Verde archipelago including Campanula bravensis (Bolle) A. Chev., the most widespread bellflower occurring in all southern mountainous islands. A determination key, descriptions, photographs and a distribution map are provided. Resumo

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Geometric morphometrics of corolla shape in Campanula (Campanulaceae) from Cabo Verde archipelago

Gardère

Dubuisson

Müller

et al. 2019

Botanical Journal of the Linnean Society

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In the Cabo Verde archipelago, Campanula spp. (bellflowers) are currently represented by four endemic species restricted to mountainous islands (C. bravensis, C. feijoana, C. hortelensis and C. jacobaea), all of which are known for high floral polymorphism. Diagnostic features of the corolla often differ from original descriptions, bringing into question their taxonomic delimitation. Based on the variations in the corolla shape observed during fieldwork, eight morphogeographical entities were distinguished among the taxa in the archipelago. Geometric morphometrics was used to quantify and examine these floral variations. Corolla morphology of 221 photographed flowers was captured by 2D landmarks and semi-landmarks configurations and analysed with canonical variate analysis. The results show agreement between morphological groupings and their geographical ranges. For most entities, the geographical origin may be determined with accurate morphological examination of the flower. In this case, the corolla shape proves to be a taxonomically discriminant trait. Furthermore, the terminology used until now to characterize these different floral forms is discussed. The present study contributes significantly to clarifying the floral polymorphism in Cabo Verdean Campanula and suggests that taxonomic revision of this group is necessary.

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Two new species of Campanula (Campanulaceae) from the island of Santo Antão, Cabo Verde archipelago

Cited by 4 publications

References 16 publications

Phylogenetic relationships and phylogeography of relevant lineages within the complex Campanulaceae family in Macaronesia

Phylogenetic relationships and phylogeography of relevant lineages within the complex Campanulaceae family in Macaronesia

Codonographia Gorgonum, or the description of a pleiad of bellflowers (Campanula, Campanulaceae) from the Cabo Verde archipelago

Geometric morphometrics of corolla shape in Campanula (Campanulaceae) from Cabo Verde archipelago

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