Fungalpedia – Note 1959, Rehmiodothis
Rehmiodothis Theiss. & Syd.
Citation when using this data: Hyde KD et al. 2020 – Fungalpedia, Ascomycota.
Index Fungorum, Facesoffungi, MycoBank, GenBank.
Classification: Phyllachoraceae, Phyllachorales, Sordariomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi
Rehmiodothis species are typical tar spot pathogens which have flattened domeshaped, glossy, black stromata, with ascomatal ostioles emerging through the leaf surface as slightly protruding structures (Swart 1987). The stromata originate in or beneath the epidermis, become heavily melanised and contain a few ascomata with oblique necks. The haustoria originate from vegetative hyphae growing between palisade cells (Park et al. 2000). Rehmiodothis osbeckiae causes black, shiny and tar-spots in living leaves of Melastoma malabathricum, with oblong to eggshaped, light-coloured, unequally 2-celled and ascospores that are constricted at septa (Narendra & Rao 1976).
Type species: Rehmiodothis osbeckiae (Berk. & Broome) Theiss. & Syd.
Other accepted species: Species Fungorum – search Rehmiodothis.
References
Narendra DV, Rao VG. 1976 – Some interesting Ascomycetes from India. Sydowia 353–358.
Park RF, Keane PJ, Wingfield MJ, Crous PW. 2000 – Fungal diseases of eucalypt foliage. In: Keane PJ, Kile GA, Podger FD, Brown BN (eds). Diseases and pathogens of eucalypts. CSIRO Publishing. Melbourne 153–239.
Entry by
Kevin David Hyde, Institute of Plant Health, Zhongkai University of Agriculture and Engineering, Haizhu District, Guangzhou 510225, P.R. China, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand, Mushroom Research Foundation, 128 M.3 Ban Pa Deng T. Pa Pae, A. Mae Taeng, Chiang Mai 50150, Thailand, Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand, Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, Yunnan, P.R. China, School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand, World Agroforestry Centre, East and Central Asia, Kunming 650201, Yunnan, P.R. China
Published online 6 March 2026