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http://dx.doi.org/10.11110/kjpt.2017.47.2.137

Fruit and seed morphology of Korean Ranunculaceae  

Jung, Woo-Chul (Jade Botanical Garden)
Heo, Kweon (Department of Applied Plant Sciences, Kangwon National University)
Publication Information
Korean Journal of Plant Taxonomy / v.47, no.2, 2017 , pp. 137-153 More about this Journal
Abstract
Fruit and seed morphological characteristics were investigated in 36 taxa of 20 genera of Korean Ranunculaceae. As a result, fruits were classified as the achene, berry, or follicle type. In the taxa with achene, the presence of trichomes and stoma on the surface of the fruit and a feature in which the endocarp distinctively develops into a one-layer sclereid were considered as useful characteristics. Moreover, in the taxa with follicles, the composition of the seed coat (bitegmic vs. unitegmic), the cell shape of the seed coat, the presence of trichomes, and the type of seed coat were useful for taxonomic characteristics in Korean Ranunculaceae. Based on the fruit and seed characteristics, Adonis is likely to be classified into Helleboroideae rather than Ranunculoideae, as it has bitegmic ovules. In addition, Enemion is similar to Eranthis in unitegmic ovule and the seed coat structure which has non-sclereid exotesta; therefore, it is reasonable to be placed in Helleboroideae. According to the results of this study, more in-depth research is needed regarding the taxonomic positions of Callianthemum and Actaea, which has the only berry fruit type.
Keywords
Ranunculaceae; achene; pericarp morphology; seed coat; anatomy;
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