Morphological and molecular data support recognition of a new rupicolous species of <i>Pinguicula</i> (<i>Lentibulariaceae</i>) from the Iberian Peninsula

A new rupicolous species, <i>Pinguicula saetabensis</i>, belonging to <i>P.</i> sect. <i>Pinguicula</i> is described from calcareous cliffs of central-southern Valencia province, in the eastern Iberian Peninsula. It has previously been confused with <i>P. mundi</i> and <i>P. vallisneriifolia</i>, two close allies endemic to southern Spain which share some morphological traits and a similar habitat. However, some peculiarities allow recognition of those Valencian plants at the specific rank. Data on morphology, ecology, biogeography and conservation are reported for the new species, and its taxonomic affinities are discussed on the basis of phylogenetic analyses of the internal transcribed spacer region of nuclear ribosomal DNA. Furthermore, the presence of one population of <i>P. vallisneriifolia</i> is confirmed in that province, also based on morphological and molecular data.本文记述了采自伊比利亚半岛东部巴伦西亚省中南部石灰岩崖壁的岩生新种——塞塔本捕虫堇（<i>Pinguicula saetabensis</i>），该新种隶属于捕虫堇组（<i>P.</i> sect. <i>Pinguicula</i>）。此前该类群曾被误鉴定为蒙德捕虫堇（<i>P. mundi</i>）与瓦利生捕虫堇（<i>P. vallisneriifolia</i>），这两个近缘特有种仅分布于西班牙南部，二者与该新种共享部分形态特征及相似生境。但该巴伦西亚种群具备若干独特性状，足以确立其独立物种地位。本文报道了该新种的形态学、生态学、生物地理学及保护现状相关数据，并基于核糖体DNA内部转录间隔区的系统发育分析探讨了其分类学亲缘关系。此外，本文还通过形态学与分子数据证实，巴伦西亚省内存在一处瓦利生捕虫堇种群。