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http://dx.doi.org/10.11110/kjpt.2015.45.2.183

A palynological study of the subfamily Asclepiadoideae (Apocynaceae s.l.) in Korea  

Nam, Bo Mi (Department of Medicinal Plant Resources, Andong National University)
Chung, Gyu Young (Department of Medicinal Plant Resources, Andong National University)
Publication Information
Korean Journal of Plant Taxonomy / v.45, no.2, 2015 , pp. 183-191 More about this Journal
Abstract
The palynological characters of 14 taxa of 4 genera (Cynanchum, Metaplexis, Tylophora, Marsdenia) in Asclepiadoideae were observed and measured using SM and SEM. The orientation and granulate surface patterns of the pollinia were important characters for delimitating the genera. The position of the attachment of the translator arms to the pollinia, considered to be an important character for recognizing the above genera, was an overlapping character among the genera and can therefore be utilized only as taxonomy at the species level. Also, we found for the first time that only Tylophora floribunda has an incised margin of the corpusculum. The quantitative characters of the pollinia, arms and corpusculum were useful keys for the delimitation of the species.
Keywords
Asclepiadoideae; pollinaria; pollinia; translator-arm; corpusculum;
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