Maria Musarella Carmelo, Ana Cano-Ortiz, Rlos Piñar Fuentes José C, Uan Navas-Ureña, José Pinto Gomes Carlos, Ricardo Quinto-Canas, Giovanni Spampinato
Dpt. of Animal and Plant Biology and Ecology, Section of Botany, University of Jaén, Campus Universitario Las Lagunillas s/n. 23071, Jaén, Spain.
Dpt. of AGRARIA, "Mediterranea" University of Reggio Calabria, Località Feo di Vito, 89122 Reggio Calabria, Italy.
PhytoKeys. 2018 Dec 11(113):79-95. doi: 10.3897/phytokeys.113.30330. eCollection 2018.
The fractal dimension (FD) is calculated for seven species of the genus L. in Calabria region (southern Italy), five of which have a marcescent-deciduous and two a sclerophyllous character. The fractal analysis applied to the leaves reveals different FD values for the two groups. The difference between the means and medians is very small in the case of the marcescent-deciduous group and very large when these differences are established between both groups: all this highlights the distance between the two groups in terms of similarity. Specifically, , which is hybridogenic in origin and whose parental species are and , is more closely related to than to , as also expressed in the molecular analysis. We consider that, in combination with other morphological, physiological and genetic parameters, the fractal dimension is a useful tool for studying similarities amongst species.
对意大利南部卡拉布里亚地区的7种落叶松属物种计算了分形维数（FD），其中5种具有落叶后枯叶宿存特性，另外2种具有硬叶特性。对叶片进行的分形分析显示，两组的FD值不同。落叶后枯叶宿存组的均值和中位数之差非常小，而两组之间的差异则非常大：所有这些都突出了两组在相似性方面的差距。具体而言， 起源于杂交，其亲本物种为 和 ，与 的关系比与 的关系更密切，分子分析也表明了这一点。我们认为，结合其他形态、生理和遗传参数，分形维数是研究物种间相似性的有用工具。
