Giacò Antonio, De Giorgi Paola, Astuti Giovanni, Caputo Paolo, Serrano Miguel, Carballal Rodrigo, Sáez Llorenç, Bacchetta Gianluigi, Peruzzi Lorenzo
PLANTSEED Lab, Department of Biology, University of Pisa, 56126 Pisa, Italy.
Botanic Garden and Museum, University of Pisa, 56126 Pisa, Italy.
Plants (Basel). 2022 Dec 9;11(24):3458. doi: 10.3390/plants11243458.
The genus (Asteraceae, Anthemideae) includes 26 species of aromatic evergreen shrubs endemic to the western Mediterranean Basin. is widely used as ornamental plant, in xerigardening, and in ethnobotany. The complex, including about half of the known species diversity, has been properly investigated on systematic and taxonomic grounds only recently, and a complete morphometric study is still missing. Here we provide a morphometric characterization and comparison of all the 14 species of this complex, using both univariate and multivariate analyses. Our results suggest that species of this complex can be distinguished using combinations of quantitative and qualitative character-states, mostly related to the leaf morphology. The analysis of , a tetraploid/hexaploid Spanish endemic, showed that the two cytotypes cannot be safely identified based on morphology. Coupling this evidence with available phylogenetic information, we conclude that there is no reason to split the two cytotypes of in two distinct taxa. An identification key for all the species of the complex is presented.
该属（菊科，春黄菊族）包括26种芳香常绿灌木，为地中海盆地西部特有的物种。该属植物被广泛用作观赏植物、用于节水园艺以及民族植物学。该复合体包含了约一半的已知物种多样性，直到最近才基于系统发育和分类学依据进行了恰当的研究，而完整的形态测量学研究仍然缺失。在此，我们通过单变量和多变量分析，对该复合体的所有14个物种进行了形态测量学特征描述和比较。我们的结果表明，该复合体的物种可以通过定量和定性特征状态的组合来区分，这些特征大多与叶片形态有关。对一种四倍体/六倍体的西班牙特有种的分析表明，无法基于形态安全地识别这两种细胞型。将这一证据与现有的系统发育信息相结合，我们得出结论，没有理由将该种的两种细胞型划分为两个不同的分类单元。本文给出了该复合体所有物种的鉴定检索表。
