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  • 1
    Language: English
    In: Plant Systematics and Evolution, 2013, Vol.299(2), pp.413-438
    Description: The genus Gagea Salisb. is the largest amongst Liliaceae, including 50–300 species. This genus can be subdivided into at least 14 sections: among them, there is the species-rich, relatively late-branching monophyletic sect. Didymobulbos . Most of species and putative hybrids within this section were included in this study for a total of about 148 accessions (corresponding to 35 taxa), almost all collected across the Euro-Mediterranean area. Thirty-seven morpho-anatomical and ontogenetic characters were considered, together with the cpDNA ( trn L– trn F IGS, psb A– trn H IGS) and nrDNA (ITS region) molecular markers. Bayesian analysis revealed the phylogenetic relationships among Didymobulbos taxa, allowing us to demonstrate new circumscriptions of critical species complexes, such as those of G. chrysantha Schult. & Schult.f., G. dubia A. Terracc. and G. granatellii (Parl.) Parl. Also the prominent role played in this section by reticulate evolution is further highlighted: many taxa, often unexpectedly, are inferred to represent hybrids (31 % of investigated taxa). The division into series cannot be maintained as we found extensive molecular evidence of hybridization between them. A new taxonomic setting for Gagea sect. Didymobulbos is proposed, and five new species are described.
    Keywords: Gagea ; Liliaceae ; ITS ; Karyology ; Networks ; Phylogeny ; Taxonomy ; L–F IGS ; A–H IGS
    ISSN: 0378-2697
    E-ISSN: 1615-6110
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  • 2
    Language: English
    In: Candollea, 2013, Vol.68(1), pp.155-158
    Description: Un néotype est choisi pour le nom Potentilla cinerea Vill(Rosaceae) pour lequel l'histoire nomenclaturale est rapportée. La description du taxon est aussi donnée.
    Description: A neotype is chosen for the name Potentilla cinerea Vill. (Rosaceae) for which the nomenclatural history is given. The description of the taxon is also reported.
    Keywords: Rosaceae - Potentilla - Typification
    ISSN: 0373-2967
    E-ISSN: 15420086
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  • 3
    In: Phytotaxa, 08/03/2016, Vol.269(2), p.103
    ISSN: 1179-3155
    E-ISSN: 1179-3163
    Source: CrossRef
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  • 4
    Language: English
    In: Phytotaxa, May 2015, Vol.207(1), pp.93--105
    Description: A new species of Orobanche was discovered in the Calanques National Park near Marseille, where it seems to be endemic. Its exclusive host, Staehelina dubia (Asteraceae), was never mentioned before as a host for Orobanchaceae. The new species...
    Keywords: Environmental Sciences ; Biodiversity and Ecology ; Environmental Sciences
    ISSN: 1179-3155
    E-ISSN: 1179-3163
    Source: Hyper Article en Ligne (CCSd)
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  • 5
    In: Nordic Journal of Botany, December 2011, Vol.29(6), pp.722-733
    Description: The typification of the name Evers (a lectotype in GZU is designated here) and studies of living topotype material, led us to conclude that is a full synonym of , sharing morphological, karyological (2n=84) and molecular (ITS region, L–F IGS, A–nH IGS) features with the latter species. , as newly circumscribed here, shows a close relationship with (M. Bieb.) Sweet and, above all, with K. Koch (possibly a hybridogenous taxon). In short, our new morphological and molecular data provide new evidence for hybridization and introgression between the closely related and (both in sect. s).
    Keywords: Botany;
    ISSN: 0107-055X
    E-ISSN: 1756-1051
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  • 6
    Language: English
    In: European Journal of Environmental Sciences, 01 December 2015, Vol.5(2), pp.153-157
    Description: Recently published botanical floras provided an opportunity to develop operational systems for identifying in the field in France of species of the difficult genus Ophrys. Its specific and infra-specific taxonomy is extremely complex because of conflicting points of view and/or insufficient knowledge about specific biological features. In order to produce an identification key based on observable morphological criteria we developed a pragmatic taxonomy suitable for non-expert botanists, which includes “morphospecies” that are unambiguously identifiable based on a number of unique or a combination of diagnostic criteria and “subspecies” that are sets of populations sharing the same geographical and ecological adaptations but not distinctly differing morphologically. The taxonomic scheme reviewed here for the section Pseudophrys is well correlated with the floral chemical signatures of all the French taxa. This intermediate position, between splitters (mainly orchidologists) and lumpers (mainly geneticists), will hopefully enable us to revise the taxonomy of this genus at the Euro- Mediterranean level.
    Keywords: Morphospecies ; Ophrys ; Taxonomy ; Environmental Sciences
    ISSN: 1805-0174
    E-ISSN: 2336-1964
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  • 7
    In: Botanical Journal of the Linnean Society, June 2012, Vol.169(2), pp.365-377
    Description: Endemic plants inhabiting coastal sand dunes show augmented extinction risks due to the dynamic nature of dunes and strong human pressure on coastal areas. To investigate the survival strategies and threats to long‐term survival of such species, we combined genetic, morphological and biogeographical approaches, using the example of (Asteraceae) and its putative cryptic sister species , which are endemic to the longest coastal sand dune in Europe. An analysis of amplified fragment length polymorphism revealed high within‐population genetic variability, and slight isolation by distance was the only indication of genetic population structure. Thus, no signs of genetic threats to survival were found. Furthermore, genetic and morphometric data provided no evidence for the existence of two species. Therefore, we propose to synonymize with and provide a nomenclatural overview with typification. Finally, an analysis of historical distribution records showed that, during the last 100 years, the species was lost from its range margins, where its habitat became fragmented. Taken together, our results suggest that one successful survival strategy of narrow endemics may be the achievement of large local population sizes on a small geographical scale, thus avoiding the genetic problems inherent to small and fragmented populations. Dune management policies should thus take care that the current tendencies to allow more erosion will not result in too severe fragmentation of the remaining continuous stretches of dune habitat. © 2012 The Linnean Society of London, , 2012, , 365–377.
    Keywords: Aflp ; Atlantic ; Coastal Sand Dunes ; Conservation ; Endemism ; Genetic Structure ; Management ; Multivariate Morphometrics
    ISSN: 0024-4074
    E-ISSN: 1095-8339
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  • 8
    Language: English
    In: Taxon, 1 May 2009, Vol.58(2), pp.651-652
    Keywords: Biological sciences -- Biology -- Biological taxonomies ; Biological sciences -- Agriculture -- Agricultural sciences
    ISSN: 00400262
    E-ISSN: 19968175
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  • 9
    Language: French
    In: Les Nouvelles Archives de la Flore jurassienne et du nord-est de la France, 2014, Vol.11, pp.5-49
    Keywords: Environmental Sciences ; Biodiversity and Ecology ; Environmental Sciences
    ISSN: 1765-0674
    Source: Hyper Article en Ligne (CCSd)
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  • 10
    Language: English
    In: Acta Botanica Gallica, 01 October 2004, Vol.151(3), pp.319-326
    Description: The new species Gagea polidorii J.M. Tison is described and its taxonomie status is proved on the light of recent data regarding the genus Gagea Salisb.
    Keywords: Liliaceae ; Gagea ; Taxonomy ; Taxonomie ; Botany
    ISSN: 1253-8078
    E-ISSN: 2166-3408
    Source: Taylor & Francis (Taylor & Francis Group)
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