CRENATE phytoliths in the leaf epidermis of Agrostidinae Fr. Potential of morphometric studies
УДК 581.812+ 582.52/.59
Abstract
The presented article is devoted to the results of morphometric studies one of the main morphotypes of Pooideae CRENATE phytoliths among some representatives of the subtribe Agrostidinae. The anatomical features of plant tissues are widely used for taxonomy purposes. Morphometric studies of phytoliths show a high level of phytolith specificity. Such articles are usually aimed at studying cultivated grasses and their differences from wild relatives. The question of the specificity of morphometric characteristics at the genus or species level remains controversial. The study is based on the study of CRENATE phytoliths in three species of Agrostidinae. 17 morphometric indicators of phytoliths were studied and the quantity of lobes was counted. Data analysis included random estimation of means and standard deviations. The final data matrix was processed using the discriminant analysis method. As a result, it was revealed that the species Agrostis gigantea, compared to Calamagrostis, has larger and elongated phytoliths due to the greater length and number of blades. Discriminant analysis showed a classification accuracy between the genera Agrostis and Calamagrostis of 80 %. The overlapping data area is formed due to the fact that both species form minimally three-lobed phytoliths.
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