Rewicz Agnieszka, Marciniuk Jolanta, Marciniuk Paweł
University of Lodz, Department of Geobotany and Plant Ecology, 12/16 Banacha, 90-237 Lodz, Poland University of Lodz Lodz Poland.
Siedlce University of Natural Sciences and Humanities, Faculty of Exact and Natural Sciences, 14 B Prusa, 08-110 Siedlce, Poland Siedlce University of Natural Sciences and Humanities Siedlce Poland.
PhytoKeys. 2020 Oct 29;166:1-28. doi: 10.3897/phytokeys.166.54271. eCollection 2020.
The genus is one of the largest and taxonomically most complicated apomictic genera. Currently, it is considered to consist of over 2800 species placed within 60 sections. Due to the large number of species, and their uniform morphological design and plasticity of leaves, the identification of plants at the species level is challenging even for specialists. This problem significantly hinders the study of their properties and the rational use of these valuable medicinal and nutritional plants. This paper presents the results of research on the morphology and micromorphology of achenes of 28 Taraxacum species of sect. Palustria and for comparison one species per section of: , , , and . The achenes were measured with a stereoscopic microscope and a biometric program, and micromorphological studies were performed by scanning electron microscopy. It has been shown that traits associated with achene morphology and micromorphology have a high diagnostic value, allowing us to distinguish sections as well as species within the sect. Palustria. Based on the examined achene features, a dichotomous key for determining the studied species was constructed.
该属是最大且分类学上最复杂的无融合生殖属之一。目前，它被认为由60个组内的2800多个物种组成。由于物种数量众多，且它们叶片的形态设计一致且具有可塑性，即使对于专家来说，在物种水平上鉴定植物也具有挑战性。这个问题严重阻碍了对其特性的研究以及对这些有价值的药用和营养植物的合理利用。本文介绍了对沼泽组28种蒲公英瘦果的形态和微形态的研究结果，并为作比较，从其他组中每组选取了一个物种：[此处原文缺失该组物种的具体名称]、[此处原文缺失该组物种的具体名称]、[此处原文缺失该组物种的具体名称]和[此处原文缺失该组物种的具体名称]。使用体视显微镜和生物测量程序对瘦果进行测量，并通过扫描电子显微镜进行微形态研究。结果表明，与瘦果形态和微形态相关的特征具有很高的诊断价值，使我们能够区分沼泽组内的各个组以及物种。基于所检查的瘦果特征，构建了一个用于确定所研究物种的二叉式检索表。
