Diploids and polyploids in theSantolina chamaecyparissuscomplex (Asteraceae) show different karyotype asymmetry

Taxonomy and distribution of the genus Santolina (Asteraceae) in Italy

“…The peculiar allopatric geographic pattern shown by the peninsular Santolina species, all diploid (Giacò et al 2022), was interpreted by previous scholars as the result of the fragmentation of a formerly wider pre-glacial distribution range (Arrigoni 1979). Under this scenario, extant species should be considered as schizoendemics (Siljak-Yakovlev & Peruzzi 2012).…”

“…Four diploid species are recorded for the peninsula, where they are endemic to relatively restricted areas, whereas the polyploid Santolina corsica Jord. & Fourr., a species showing both tetraploid and hexaploid 2 cytotypes, is endemic to Sardinia and Corsica (Giacò et al 2022). In addition, S. virens Mill.…”

An integrative taxonomic study of Santolina (Asteraceae) from southern France and north‐eastern Spain reveals new endemic taxa

“…The populations analyzed in this study (Table 1) are the same as those sampled by Giacò et al (2022) in southern France and north-eastern Spain: the populations from type localities of Santolina benthamiana, Santolina decumbens, and Santolina ericoides (Fig. 1); a population collected at the foothills of the French Pyrenees, from an area where populations morphologically intermediate between S. benthamiana and S. ericoides are reported (Giacò et al, 2021) (Ben-rou in Table 1); a population of S. decumbens located at the northernmost portion of its species range (Dec-sis in Table 1); an isolated population of S. decumbens located at the westernmost portion of its species range (Dec-lfo in Table 1); and two populations of S. ericoides from north-eastern Spain. For morphometrics, 20 flowering individuals were collected for each population.…”

“…The Santolina chamaecyparissus L. species complex is an example of a group with an alpha‐taxonomic status, for which an integrated systematic approach is currently being carried out (Giacò et al, 2022; De Giorgi et al, 2022). Except for the cytotaxonomic studies conducted by Marchi & D′Amato (1973), Marchi et al (1979), and Valdés‐Bermejo & Antúnez (1981), the taxonomic circumscription of species within this complex is mostly based on qualitative morphological observations (Arrigoni, 1982; Tison & de Foucault, 2014; Carbajal et al, 2019).…”

Primeros Registros De Polinizadores Oportunistas De Santolina Chamaecyparissus Linneo 1753 (Asteraceae). Un Inusual Mutualismo Planta-Insecto en La Costa De Chile Central

“…El mutualismo desempeña un papel clave en los sistemas ecológicos e impulsan la evolución de gran parte de la diversidad biológica mundial (Bronstein, 2001;Bronstein et al, 2006). Santolina chamaecyparissus que incluye un complejo de 14 especies endémicas del Mediterráneo (Giacò et al, 2022), es una asterácea no nativa en Chile y una planta con variados potenciales aromáticos (Demirci et al, 2000;El-Sahhar et al, 2011;Labed et al, 2017). Las semillas de S. chamaecyparissus son dispersadas probablemente por mirmercoria y el espectro de los polinizadores son: moscas volantes, otros dípteros, escarabajos, abejas solitarias, moscas de la carne, según base de datos de flora y vegetación Checas: Pladias (2022).…”