Kim Dae Ho, Kawg Young-Nam, Kim Hyung So, Han Sang-Kuk, Kim Chang-Sun, Lee Jong Kyu
Forest Biodiversity Research Division, Korea National Arboretum, Pocheon, South Korea.
Garden and Education Research Division, Korea National Arboretum, Pocheon, South Korea.
Mycobiology. 2025 Sep 5;53(5):747-759. doi: 10.1080/12298093.2025.2551300. eCollection 2025.
The genus Hill ex Schrank is an ecologically significant group of wood-decaying fungi that contribute to nutrient cycling and ecosystem stability in forests worldwide. Despite a recent global increase in the descriptions of new species, Korean species have rarely been reexamined using modern taxonomic frameworks. In this study, dried specimens preserved at the Korea National Arboretum were re-identified through integrative morphological and molecular analyses using four genetic markers (ITS, ACT, TUB2, and RPB2). Consequently, one previously unrecorded species () and three novel species (, , and ) were discovered. Morphological observations revealed that is characterized by its slender, needlelike, unbranched stromata with fine longitudinal striations and semi-exposed perithecia; has distinctive capitate stromata with a short stipe and a solitary perithecium; and exhibits an erect, oriental brush-like stroma partially developed underground. Phylogenetic analyses supported the unique status of these taxa, as they formed distinct and well-supported clades separate from known species within . These findings further elucidate the diversity of the family and demonstrate the value of combining morphological and molecular data to resolve cryptic species within this genus.
希尔属（Hill ex Schrank）是一类具有重要生态意义的木材腐朽真菌，对全球森林中的养分循环和生态系统稳定性起着重要作用。尽管最近全球新物种的描述有所增加，但韩国的物种很少使用现代分类框架进行重新审视。在本研究中，通过使用四个遗传标记（ITS、ACT、TUB2和RPB2）的综合形态学和分子分析，对保存在韩国国立树木园的干燥标本进行了重新鉴定。结果发现了一个以前未记录的物种（）和三个新物种（、和）。形态学观察表明，的特征是其细长、针状、无分支的子座，具精细的纵向条纹和半外露的子囊壳；具有独特的头状子座，具短柄和单个子囊壳；而呈现出直立的、东方刷状子座，部分在地下发育。系统发育分析支持了这些分类单元的独特地位，因为它们形成了与希尔属内已知物种分开的独特且得到充分支持的分支。这些发现进一步阐明了希尔科的多样性，并证明了结合形态学和分子数据来解决该属内隐存物种的价值。
