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Catalogue Synonymique Commenté De La Flore De Tunisie

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  • French National Centre for Scientific Research Montpellier
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... In the Euro+Med region the taxon is reported as naturalized in the Canary Islands and as a casual alien in Crete (Yannitsaros 2006 (Marhold 2011a+). For N Africa, it was reported from Morocco and Algeria as cultivated (doubtfully escaping) with no mention for Tunisia (Marhold 2011a+;Le Floc'h & al. 2010;Dobignard & Chatelain 2011a;APD 2018). In Tunisia it was first found in 2012 in Quercus forests of Aïn Draham in the NW part of the country, where it was re-collected during the 12 th OPTIMA Iter Mediterraneum in 2014 (Greuter & Domina 2015: 28, without status information). ...
... -Native to Europe from Portugal to the Caucasus (Davis 1978: 163), but not mentioned for N Africa (Marhold 2011a+;Le Floc'h & al. 2010;Dobignard & Chatelain 2011a;APD 2018 (Gleason & Cronquist 1963;Lee & al. 1990), which has become naturalized in other parts of the world, e.g. across the S United States from California to New England (Hickman 1993;Clapham & al. 1962) (Barreto 1997;USDA-ARS 2018), now also naturalized in New Zealand (Kelly & Skipworth, 1984), SE Australia (Dunphy, 1991), Portugal (Aguiar & al. 2001), Italy (Orlando & Grisafi 1977), Greece including the Cretan area (Dimopoulos & al. 2013: 86, 300), Russia (Tolkach & al. 1990), Japan (Enomoto 2000) and SE North America (Wunderlin 1998 Behr & al. were known (Greuter 2006+). ...
... Two other sheets determined by Sánchez Pedraja & al. (2016+) as Phelipanche libanotica probably also belong to Phelipanche orientalis: "In Libani borealis declivitatibus orientalibus silvaticis, inter Der-el-Ahmar et Aineta", 1600-1700m, 27 -28 Jun 1910 (Whalen 1979) and is now widely naturalized and invasive in tropical and subtropical regions around the world (Randall 2012;USDA-NRCS 2018). For N Africa, it has been reported so far only as a casual alien in Morocco, with no mention for Tunisia (Valdés 2012+;Le Floc'h & al. 2010;Dobignard & Chatelain 2013;APD 2018). ...
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Phelipanche gussoneana, including Phelipanche schultzioides described from Peloponnisos, Greece (Foley 2008), has probably been overlooked in the C and E Mediterranean, and was recently also found on the Crimean peninsula (Rätzel & al. 2017a, 2017b). Phelipanche schultzioides, including its type, and specimens from Sicily identified as Phelipanche oxyloba (Reut.) Soják (Domina & al. 2011) match Phelypaea gussoneana, including its type. For reasons of nomenclatural priority, the present new combination is necessary when Phelipanche schultzioides and Phelypaea gussoneana are regarded as conspecific. This taxon is typically taller than the morphologically similar Phelipanche mutelii (F. W. Schultz) Pomel and has a different appearence, with bracts sticking out from the inflorescence in bud, and dark bluish veins on the corolla.
... origanifolium sub H. origanifolium (Crespo et al., 2016) or H. nummularium subsp. grandiflorum sub H. grandiflorum (Le Floc'h et al., 2010)], and considering that most species complexes are non-monophyletic (Martín-Hernanz et al., 2019a). ...
... Proctor and Heywood, 1968;Greuter et al., 1984;Volkova et al., 2016), while at species level in others (e.g. Crespo et al., 2016;Yuzepchuk, 1974;Tzvelev, 2006;Le Floc'h et al., 2010). ...
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The biogeographic history and the degree of environmental niche conservatism provide essential clues to decipher the underlying macroevolutionary processes of species diversification and to understand contemporary patterns of biodiversity. The genus Helianthemum constitutes an excellent case study to investigate the impact of the geo-climatic changes and the environmental niche shifts on the origins of plant species diversity in the Mediterranean hotspot. It is a palearctic species-rich lineage with c. 140 species and subspecies mostly belonging to three distinct evolutionary radiations, almost confined to the Mediterranean region and occurring across varied environmental conditions. In this work, we studied the ample and rapid diversification of the genus Helianthemum across its whole distribution range by performing phylogenetic reconstructions of ancestral ranges and environmental niche evolution. We observed a striking synchrony of biogeographic movements with niche shifts between the three major clades of the genus Helianthemum, likely related to the geo-climatic events occurred in the Mediterranean Basin since the Upper Miocene. In particular, Late Miocene and Early Pliocene were dominated by episodes of range expansions, the Late Pliocene by range contraction and vicariance events, and Pleistocene by most intense environmental niche shifts and in-situ diversification. Our study also provides evidence for four main environmental niches in Helianthemum (i.e., Mediterranean, subdesert, humid-montane and subtropical-insular) and a tendency toward environmental niche conservatism within different subclades, with few niche shifts mostly occurring from Mediterranean ancestors. The relative longer time spent in Mediterranean areas by the ancestors of Helianthemum suggests that the larger species diversity observed in the Mediterranean (i.e. Northern Africa and Southern Europe) may have been generated by a time-for-speciation effect reinforced by environmental niche conservatism. Overall, our work highlights the role of the Mediterranean Basin as a 'cradle of diversity' and an 'evolutionary hub', facilitating the environmental transitions and determining the building up of a global plant biodiversity hotspot.
... Plant material used in this study consists of 32 natural populations of genus Narcissus sampled in contrasting ecological conditions along the east-west biogeographic gradient of the northern Algeria (Table 1). Systematic determinations were made using the main Algerian floras (Munby 1847;Trabut 1895, 1902;Maire 1959;Quézel and Santa 1962) as well as floras from the Iberian Peninsula (Aedo 2013), from Morocco (Fennane et al. 2014), and from Tunisia (Le Floc'h et al. 2010). Status of the species and synonyms have been checked on the two main specialized websites, World Check List of Selected Plant Families (Govaerts 2015) and African plant data- Quézel and Santa (1962). ...
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This paper provides new cytotaxonomic data on the genus Narcissus Linnaeus, 1753, in Algeria. Populations of seven taxa, N. tazetta Linnaeus, 1753, N. pachybolbus Durieu, 1847, N. papyraceus Ker Gawler, 1806, N. elegans (Haworth) Spach, 1846, N. serotinus sensu lato Linnaeus, 1753, including N. obsoletus (Haworth) Steudel, 1841, and N. cantabricus De Candolle, 1815, were karyologically investigated through chromosome counting and karyotype parameters. N. tazetta and N. elegans have the same number of chromosomes 2 n = 2 x = 20 with different karyotype formulas. Karyological and morphological characteristics, confirm the specific status of N. pachybolbus and N. papyraceus , both are diploids with 2 n = 22 but differing in asymmetry indices. The morphotypes corresponding to N. serotinus sensu lato show two ploidy levels 2 n = 4 x = 20 and 2 n = 6 x = 30 characterized by a yellow corona. Some hexaploid cytotypes have more asymmetric karyotype with predominance of subtelocentric chromosomes. They are distinguished by orange corona and may correspond to N. obsoletus . Other cytotype 2 n = 28 of N. serotinus was observed in the North Western biogeographic sectors. N. cantabricus was found to be diploid with 2 n = 2 x = 14, which is a new diploid report in the southernmost geographic range of this polyploid complex.
... The genus Teucrium (Lamiaceae) consists of 286 taxonomically validated species and subspecies (https://powo.science.kew.org/, accessed on 13 December 2021), 23 of which are included in the Tunisian flora [1]. These species are mainly perennial plants (rarely annual or biennial) of dry, arid, and rocky places with open vegetation, and most of them are rich in bioactive compounds. ...
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In the context of plant conservation and sustainable use of unique neglected and underutilized phytogenetic resources, this study focused on the Tunisian local endemic Teucrium luteum subsp. gabesianum (Lamiaceae). Using Geographical Information Systems and online databases, detailed taxon-specific ecological profiling was produced for the first time, which illustrated the temperature and climate conditions in its wild habitats and facilitated the investigation of how temperature affects its seed germination, thus making its cultivation in anthropogenic environments possible. Following the seed propagation first reported herein (77.5–81.25% at temperatures between 15 and 25 °C), species-specific in situ and ex situ conservation efforts or sustainable exploitation strategies can be enabled. This study also reported for the first time how chemical and integrated nutrient management (INM) fertilizers affect the growth and pilot cultivation of its seedlings (INM more advantageous). The firstly-reported herein DNA barcoding may enable its traceability, allowing future product design. The multidisciplinary approach followed has paved the way to bridge important research gaps hindering conservation efforts and/or the sustainable exploitation of this local Tunisian endemic plant to date. Based on the aforementioned results, the feasibility and readiness timescale for its sustainable exploitation was overviewed and re-evaluated herein, upgrading (>two-fold) its potential value for the medicinal-cosmetic, agro-alimentary, and ornamental-horticultural sectors.
... It's a shrub with a short-living cycle that is endemic to North Africa, in Morocco 2 , Algeria 3 and Libya 4 . It grows wild in different regions in Tunisia [5][6][7][8] . T. algeriensis is one of the rarest species of Thymus. ...
Article
In this study, we investigated the chemical composition, antioxidant and antibacterial activities of essential oil and aqueous extract from Thymus algeriensis Boiss. & Reut growing in Tunisia. GC/MS analysis of essential oil from the aerial part of the plant led to identifying 54 constituents representing 96.87 % of the total oil composition. Monoterpenes represented the major components of the essential oil. On the other hand, the aqueous extract and the essential oil were screened for their antioxidant and antibacterial activities. The latter was assessed against Gram-negative and Gram-positive bacterial strains using the broth dilution micro method for the determination of antibacterial activity. The antioxidant activity was evaluated using the DPPH scavenging activity and Ferric Reducing/Antioxidant Power (FRAP) assays. The essential oil was found to be more active in antibacterial screening (MIC = 0.54 μg/mL). Whereas the aqueous extract exhibited the most potent antioxidant activity with (IC50 = 0.04 μg/mL). UHPLC ESI(-)-HRMS/MS analysis of the aqueous extract allowed tentative identification of its constituents and showed that it is rich in phenolic compounds. Luteolin-glucuronide was found to be the most abundant compound followed by Vicenin-2 and Apigenin-diglucuronide.
... The umbrella pine (P. pinea) has been planted over large areas and tends to be natural in the region (Le Floc'h et al. 2010). Kroumiria contains many permanent or temporary wetlands (dams, hill lakes, rivers, wet meadows), as well as the only extended peat bog in Tunisia (Dar Fatma). ...
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During fieldworks in 2019, a pair of Red-rumped Swallows (Cecropis daurica) were seen building their nest (June) and one of them brooding (August). The pair was still present in the area by the end of September, while all other swallows left this breeding area. In June 2020, the nest entrance was destroyed and the nest was occupied by a pair of Passer sp. Another nest of C. daurica was found in an abandoned building but was completely destroyed. This observation is the first record concerning an attempt and failure of nesting of the species in Tunisia. The nesting area of the Red-rumped Swallow is extended to the Mediterranean in southern Europe and to northwest Africa. The nesting sites are described, and the extension of the nesting area is discussed in this work.
... Thus, identification is usually based on reproductive characters. According to Le Floc'h & al. (2010), Dobignard & Chatelain (2010) and Uotila (2011+), only 4 species of Suaeda occur in Tunisia, whereas 6 and 7 species occur in Lybia and Morocco, respectively (APD 2021). More recently, Suaeda spicata (Willd.) ...
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Two new Suaeda (Chenopodiaceae/Amaranthaceae, Suaedoideae) records from the Tunisian coastal areas with a key to species identification Abstract El Mokni, R. & Debruille, F.: Two new Suaeda (Chenopodiaceae/Amaranthaceae, Suaedoideae) records from the Tunisian coastal areas with a key to species identification.-Fl. Medit. 31: 31-36. 2021.-ISSN: 1120-4052 printed, 2240-4538 online. Two species of Suaeda, S. aegyptiaca (sect. Salsina) and S. splendens (sect. Schoberia) are here reported for the first time from Tunisia. Descriptions for their distinguishing morphological characters, as well as ecological and chorological data are given. An analytical key to species of Suaeda belonging to Suaedeae tribe and occurring in Tunisia is also provided.
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