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Evaluation of leaf morphology for distinguishing Prunus (Rosaceae) from Jeju, Korea  

Kim, Chan-Soo (Warm-Temperate Research Center, Korean Forest Research Institute)
Moon, Myung-Ok (Department of Life Sciences, Cheju National University)
Cheong, Eun Ju (Floral and Nursery Plant Research Unit, USDA/ARS, US National Arboretum)
Byun, Gwang Ok (Warm-Temperate Research Center, Korean Forest Research Institute)
Publication Information
Korean Journal of Plant Taxonomy / v.35, no.2, 2005 , pp. 81-98 More about this Journal
Abstract
Leaf morphology was examined for Prunus species from Jeju Island. Analyzed were the leaf blade length, petiole length, width of blade, number of veins and angle of the base to the mid-vein as quantitative characters and the distribution of trichome, position of glandsand leaf features qualitative characters. A total of 25 OTU were phenetically analyzed by UPGMA. The resuling phenograms slightly differ from the currently recognized taxonomic system in two points. Prunus mume was clustered with P. padus and P. buergeriana. Prunu spendula and P. yedoensis were separated from the cluster of P. jaamasakura, P. speciosa, P. sargentii and P. jamasakura var. quelpaertensis. Except for the members of subgenus Cerasus, subgenera Padus (P. buergeriana and P. padus), Microcerasus (P. japonica) and Amygdalus were well defined. Some morphological characters of leaves such as the ratio of blade length to width, the length of blade to petiole, number of veins, the distance between the gland and base, the angle of base to mid-vein, and the distribution of trichome were useful as diagnostic features for Prunus from Jeju Island.
Keywords
Diagnostic character; Jeju Island; leaf; morphological character; Prunus;
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