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Korean J. Pl. Taxon > Volume 48(3); 2018 > Article
Korean Journal of Plant Taxonomy 2018;48(3): 163-171.
doi: https://doi.org/10.11110/kjpt.2018.48.3.163
한국산 금털고사리속의 계통분류학적 연구
이창숙1 , 이강협2, 여성희1, 정경숙3
1이화여자대학교 사범대학 과학교육과
2국립수목원
3중원대학교 융합과학기술대학 제약공학과
Phylogenetic study of the fern genus Hypodematium (Hypodematiaceae), focusing on Korean native taxa
Chang Shook LEE1 , Kanghyup LEE2, Sung Hee YEAU1, Kyong-Sook CHUNG3
1Department of Science Education, Ewha Womans University, Seoul 03760, Korea
2Korea National Arboretum, Pocheon 11186, Korea
3Department of Medicinal Plant Science, Jungwon University, Goesan 28024, Korea
Correspondence :  Chang Shook LEE ,Email: ferncslee@hanmail.net
Kyong-Sook CHUNG ,Email: kchung@jwu.ac.kr
Received: June 28, 2018  Revised: August 31, 2018   Accepted: September 19, 2018
Abstract
In Korea, Hypodematium glanduloso-pilosum was formerly known as the only Korean native species in the genus. Recently, however, we reported one unrecorded taxon, H. squamuloso-pilosum Ching, which was found on rocks at a limestone mountain in Yeongwol, along with one new taxon, H. angustifolium in Okcheon. Traditionally, Hypodematium taxa are often distinguished from each other by vegetative characters such as pinnatifid lamina, glandular hairs, and narrower or linear lanceolate scales on stipe bases. H. glanduloso-pilosum, distributed widely throughout the country except on Jejudo Island in Korea, exhibiting variations in leaf segregation, indusia positions, hair distributions and size. The high variation in the morphological characters in the widely distributed taxon has caused problems delimitating three native species from each other. To evaluate the phylogenetic relationships among H. glanduloso-pilosum and taxa related to Hypodematium (all Korean native taxa), we carried out morphological and molecular analyses (cpDNA rbcL and psbA-trnH) of populations of the genus Hypodematium in Korea. Although H. glanduloso-pilosum exhibits high variations in some morphological characters, the species is characterized by stipes and indusia with densely multicellular hairs and rod-shaped glandular hairs or hairs and lanceolate or oblong lanceolate scales in rhizomes and stipe bases distinguished from those of other Korean native taxa (H. squamuloso-pilosum and H. angustifolium). In the analyses of cpDNA data, three Korean native taxa are placed in the same clade, i.e., in the glanduloso-pilosum group. Moreover, our analyses propose that H. squamuloso-pilosum (China and Korea), H. angustifolium (Korea), and H. fordii (China and Japan) share the same glanduloso-pilosum clade with H. glandulosopilosum (China, Korea, and Japan).
KeyWords: Hypodematium, Korean fern, morphology, molecular data
주요어: 금털고사리속, 한국, 형태분석, 분자적 분석
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