In: Sydowia 79, (2027): 115-124; ISSN 0082-0598, DOI 10.12905/0380.sydowia79-2027-0115, Published online on July 13th, 2026

A new species of Lundqvistomyces (Schizotheciaceae, Sordariales) on mangrove associates from Prachuap Khiri Khan, Thailand

Samhita Mukhopadhyay, Chayanard Phukhamsakda, Chitrabhanu S. Bhunjun, Carlo Chris Serrano Apurillo, Vinodhini Thiyagaraja, Ali H. Bahkali5,
E.B.G. Jones5 & Kevin D. Hyde

1 Key Laboratory of Phytochemistry and Natural Medicines, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, People’s Republic of China
2 Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand
3 School of Science, Mae Fah Luang University, 57100, Thailand
4 Department of Science and Technology-Centre of Research in Science and Technology, Philippine Science High
School-Eastern Visayas Campus, Pawing, Palo, Leyte 6501, Philippines
5 Botany and Microbiology Department, College of Science, King Saud University, Riyadh, 1145, Saudi Arabia
6 Department Microbial Drugs, Helmholtz Centre for Infection Research (HZI), Inhoffenstrasse 7, 38124, Braunschweig, Germany
e-mail: kdhyde3@gmail.com

Mukhopadhyay S., Phukhamsakda Ch., Bhunjun Ch.S., Serrano Apurillo C.C., Thiyagaraja V., Bahkali A.H., Jones E.B.G. & Hyde K.D. (2026) A new species of Lundqvistomyces (Schizotheciaceae, Sordariales) on mangrove associates from Prachuap Khiri Khan, Thailand. – Sydowia 79: 115–124.

The Pranburi River coastline extends southeast through Prachuap Khiri Khan to the Gulf of Thailand. Our study resulted in the collection of Lundqvistomyces verrucosus, isolated from submerged decaying stems of mangrove-associated plants along the Pranburi River. Morphological studies, particularly in ascospore shape, size, ornamentation and ascomata features, in conjunction with multigene phylogenetic analyses (LSU–ITS–rpb2), established our collection as a new taxon. Lundqvistomyces verrucosus has longer and verrucose ascospores compared to its closest relatives L. karachiensis and L. tanzaniensis. Additionally, the lower cells of Lundqvistomyces verrucosus are rounded, while those of L. tanzaniensis are triangular. The ascomata of Lundqvistomyces verrucosus have flexuous hairs, while L. karaciensis and L. tanzaniensis are glabrous. Notably, this is the first report of the genus from mangrove ecosystems, highlighting its broader ecological adaptability. Our findings expand the diversity and habitat range of Lundqvistomyces, emphasising the ecological richness of fungi associated with mangrove-associated plants and the importance of continued exploration in understudied environments.

Keywords: Ascomata, Fungi, Hibiscus tiliaceus, Schizothecium, Volkameria inermis. – 1 new species.