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| Symplocarpus koreanus J. S. Lee, S. H. Kim & S. C. Kim, in Lee, Kim, Kim, et al., 2021. |
Abstract
Symplocarpus koreanus (Araceae; Orontioideae) from Korea is described as new. Symplocarpus koreanus has long been considered to be conspecific with S. renifolius in Japan, but phylogenetic, morphological, and cytological data indicate its taxonomic distinction. Compared to S. renifolius, S. koreanus has a much smaller spathe and more spherical spadix with fewer, smaller flowers. Previous phylogenetic studies also suggested that S. koreanus is more closely related to nonthermogenic S. nipponicus than to S. renifolius in Japan. Like its nonthermogenic sister species, S. nipponicus, in Korea and Japan, S. koreanus is diploid (2n = 2x = 30), while S. renifolius in Japan is tetraploid (2n = 4x = 60). A detailed species description, geographical distribution, major morphological differences between the species and a dichotomous key to the species in eastern Asia are provided.
Keywords: Araceae, Orontioideae, Symplocarpus koreanus, Korean endemic, Korean skunk cabbage
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| Symplocarpus koreanus J. S. Lee, S. H. Kim & S. C. Kim. A. Habit. B. Details of roots. C. Young plant. D. Flowering habit. E, F. Spathe and spadix. G. Pistillate phase spadix with stipe. H. Staminate phase spadix with stipe. I. Flower with four stamens. J–L. Infructescence. M. Seeds. |
Symplocarpus koreanus J. S. Lee, S. H. Kim & S. C. Kim, sp. nov.
Etymology: The specific epithet, koreanus, is based on the name of the country of origin, Korea.
Vernacular name: Han-guk-an-jeun-bu-chae (한국앉은부채).
English colloquial name: Korean skunk cabbage.
Joon Seon Lee, Seon-Hee Kim, Yongsung Kim, Youl Kwon, JiYoung Yang, Myong-Suk Cho, Hye-Been Kim, Sangryong Lee, Masayuki Maki and Seung-Chul Kim. 2021. Symplocarpus koreanus (Araceae; Orontioideae), A New Species based on Morphological and Molecular Data. Korean J. Pl. Taxon. 51(1): 1−9. DOI: 10.11110/kjpt.2021.51.1.1
