Sideritis carpetana Izquierdo & Gavilan 2025, sp. nov
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2025
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| author | Izquierdo, Jose Luis Magaña Ugarte, Rosina Gutiérrez-Girón, Alba Obón de Castro, Concepción Rivera Núñez, Diego Gavilán, Rosario G. |
| author_facet | Izquierdo, Jose Luis Magaña Ugarte, Rosina Gutiérrez-Girón, Alba Obón de Castro, Concepción Rivera Núñez, Diego Gavilán, Rosario G. |
| contents | <p><i>Sideritis carpetana</i> Izquierdo & Gavilán sp. nov</p><p><b>Description</b></p><p><b>(Figs 2 – 5).</b> Dwarf shrub with erect or decumbent habit, growing up to 25 cm. Stems are holotrichous with white hairs. Branchlets at the base have cylindric trichomes of 3–4 cells, except the apical band-shaped being 0.7–1.3 mm long. Leaves are entire, linear-oblanceolate, measuring 8–12.5 × 2.5–3.5 mm long, markedly trinerved and mucronated, sparsely covered by trichomes on the upper side of leaf and more densely covered on the underside. Middle bracts measure 6–8 mm. The inflorescence is spiciform or slightly verticillated with 5–6 whorls, each enclosing 5 (6) flowers. The calyx is campanulate, densely haired, 6–8.3 mm long, teeth spiny-acuminate, equal, and erect, 2.5–3.5 long, with continuous carpostegium, spines 1–1.5 mm. The corolla is yellow 8–9 (10) mm, with entire or two slight lobes in the upper lip and three in the lower lip, the central bigger than the other two; stamens included in the corolla tube, with filaments 4–5 mm long; style 3–3.5 mm long; ovoid nutlets 1 mm (see Suppl. material 1: table S 1 for diagnostic features and detailed description).</p><p>This species lives in the mountains of Sierra de Guadarrama, in the marble outcrop reserve of La Flecha Pass, in the Sierra de Guadarrama National Park, on Mediterranean high-mountain calcareous grasslands and screes of anthropogenic origin, mainly in southern exposures, at an altitude of 1990–2000 m asl.</p><p><b>Holotype.</b></p><p>• Holotype: Spain, Madrid: Sierra de Guadarrama. Collado de la Flecha, 1996 m asl. 14 / 07 / 2021. 40.928276, -3.925597 (ETRS 89), <i>Rosario G. Gavilán</i> and <i>José Luis Izquierdo</i>, MAF [MAF 181439].</p><p><b>Phenology.</b></p><p>The species is known to have its prime flowering season from June to July; and it is reported to fruit from August to October.</p><p><b>Distribution and habitat.</b></p><p><i>Sideritis carpetana</i> grows in Mediterranean high-mountain calcareous grasslands of <i>Festuco-Ononidetea striatae</i> (<i>Festuco carpetanae-Astragaletum mutici</i>) and in marble screes of anthropogenic origin at La Flecha Pass, Sierra de Guadarrama, at an altitude of 1996 m asl (Table 2). The geographical distribution is restricted to the marble outcrop reserve within the Sierra de Guadarrama National Park. In these territories, winter snow cover lasts for approximately five months, while summer rainfall is scarce as is typical of a Mediterranean territory.</p><p><b>Etymology.</b></p><p>The specific epithet ‘ <i>carpetana</i> ’ refers to the former inhabitants of these mountains that were called ‘ carpetanos’ (carpetan, in English). Moreover, “ Cordillera Carpetana ”, or Carpetan Range, is a synonym for Sistema Central (Central System), the mountain range that divides the northern and southern plateau in central Iberian Peninsula. The Sistema Central comprises several mountain ranges: Sierra de Estrela, Sierra de Gata, Peña de Francia, Sierra de Gredos, Sierra de Guadarrama and Sierra de Ayllón from western to eastern territories.</p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_14679908 |
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| publishDate | 2025 |
| publisher | Zenodo |
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| spellingShingle | Sideritis carpetana Izquierdo & Gavilan 2025, sp. nov Izquierdo, Jose Luis Magaña Ugarte, Rosina Gutiérrez-Girón, Alba Obón de Castro, Concepción Rivera Núñez, Diego Gavilán, Rosario G. Biodiversity Taxonomy Plantae Tracheophyta Magnoliopsida Lamiales Labiatae Sideritis Sideritis carpetana <p><i>Sideritis carpetana</i> Izquierdo & Gavilán sp. nov</p><p><b>Description</b></p><p><b>(Figs 2 – 5).</b> Dwarf shrub with erect or decumbent habit, growing up to 25 cm. Stems are holotrichous with white hairs. Branchlets at the base have cylindric trichomes of 3–4 cells, except the apical band-shaped being 0.7–1.3 mm long. Leaves are entire, linear-oblanceolate, measuring 8–12.5 × 2.5–3.5 mm long, markedly trinerved and mucronated, sparsely covered by trichomes on the upper side of leaf and more densely covered on the underside. Middle bracts measure 6–8 mm. The inflorescence is spiciform or slightly verticillated with 5–6 whorls, each enclosing 5 (6) flowers. The calyx is campanulate, densely haired, 6–8.3 mm long, teeth spiny-acuminate, equal, and erect, 2.5–3.5 long, with continuous carpostegium, spines 1–1.5 mm. The corolla is yellow 8–9 (10) mm, with entire or two slight lobes in the upper lip and three in the lower lip, the central bigger than the other two; stamens included in the corolla tube, with filaments 4–5 mm long; style 3–3.5 mm long; ovoid nutlets 1 mm (see Suppl. material 1: table S 1 for diagnostic features and detailed description).</p><p>This species lives in the mountains of Sierra de Guadarrama, in the marble outcrop reserve of La Flecha Pass, in the Sierra de Guadarrama National Park, on Mediterranean high-mountain calcareous grasslands and screes of anthropogenic origin, mainly in southern exposures, at an altitude of 1990–2000 m asl.</p><p><b>Holotype.</b></p><p>• Holotype: Spain, Madrid: Sierra de Guadarrama. Collado de la Flecha, 1996 m asl. 14 / 07 / 2021. 40.928276, -3.925597 (ETRS 89), <i>Rosario G. Gavilán</i> and <i>José Luis Izquierdo</i>, MAF [MAF 181439].</p><p><b>Phenology.</b></p><p>The species is known to have its prime flowering season from June to July; and it is reported to fruit from August to October.</p><p><b>Distribution and habitat.</b></p><p><i>Sideritis carpetana</i> grows in Mediterranean high-mountain calcareous grasslands of <i>Festuco-Ononidetea striatae</i> (<i>Festuco carpetanae-Astragaletum mutici</i>) and in marble screes of anthropogenic origin at La Flecha Pass, Sierra de Guadarrama, at an altitude of 1996 m asl (Table 2). The geographical distribution is restricted to the marble outcrop reserve within the Sierra de Guadarrama National Park. In these territories, winter snow cover lasts for approximately five months, while summer rainfall is scarce as is typical of a Mediterranean territory.</p><p><b>Etymology.</b></p><p>The specific epithet ‘ <i>carpetana</i> ’ refers to the former inhabitants of these mountains that were called ‘ carpetanos’ (carpetan, in English). Moreover, “ Cordillera Carpetana ”, or Carpetan Range, is a synonym for Sistema Central (Central System), the mountain range that divides the northern and southern plateau in central Iberian Peninsula. The Sistema Central comprises several mountain ranges: Sierra de Estrela, Sierra de Gata, Peña de Francia, Sierra de Gredos, Sierra de Guadarrama and Sierra de Ayllón from western to eastern territories.</p> |
| title | Sideritis carpetana Izquierdo & Gavilan 2025, sp. nov |
| topic | Biodiversity Taxonomy Plantae Tracheophyta Magnoliopsida Lamiales Labiatae Sideritis Sideritis carpetana |
| url | https://doi.org/10.5281/zenodo.14679908 |