Echeveria islasiae is proposed as new species, a plant collected near the town of Olinalá in the state of Guerrero, Mexico. Its morphological characteristics such as few-flowered cincinnate inflorescences and an elongate corolla with greenish apex relate it with the taxa of ser. Longistylae. Conversely, it differs from the other taxa of the series by having narrower, dark green, oblanceolate-spatulate to cymbiform leaves that are somewhat triquetrous at the apex, deep red floral peduncles and pedicels, the corolla pink colored at the middle, and the absence of appendages at the sides of the epipetalous filaments. A first effort to build a reference library for DNA barcoding shows two diagnostic nucleotides which differentiate the new species from related taxa, one in the matK chloroplast region and one in the ITS2 nuclear region.

Echeveria islasiae被提议作为新物种，一种在墨西哥格雷罗州 Olinalá 镇附近收集的植物。它的形态特征，如少花的肉桂花序和带有绿色先端的细长花冠，将它与 ser 的分类群联系起来。长线。相反，它与该系列的其他分类群的不同之处在于具有更窄的深绿色倒披针形匙形至伞形叶片，在顶端有点三角，深红色的花梗和花梗，花冠粉红色在中间，没有附叶丝两侧的附属物。为 DNA 条形码构建参考库的第一项努力显示了两种诊断核苷酸，可将新物种与相关分类群区分开来，一个在matK 中 叶绿体区域和 ITS2 核区域之一。