Fungalpedia – Note 2456, Pseudocapulatispora
Pseudocapulatispora. Mapook & K.D. Hyde.
Citation when using this data: Dong W et al. 2020 – Fungalpedia, Ascomycota.
Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig 1
Classification: Lophiostomataceae, Pleosporales, Pleosporomycetidae, Dothideomycetes, Pezizomycotina, Ascomycota, Fungi
Saprobic on submerged wood or dead stems. Sexual morph: Ascomata brown to black, solitary or scattered, immersed with papilla erumpent through host surface, ellipsoidal or ovoid, coriaceous, ostiolate. Ostiolar papilla short, blackened, compressed, crest-like. Peridium composed of several layers of brown to dark brown, thin-walled cells. Pseudoparaphyses numerous, trabeculate, filiform, hyaline, sparsely septate, branched. Asci 8-spored, bitunicate, mostly broadly clavate, rarely cylindric-clavate, apically narrowly rounded, with an ocular chamber and a short pedicel. Ascospores biseriate, broadly fusiform, hyaline, septate, mostly rounded or rarely sharply narrowed at two ends, guttulate, thin-walled, smooth, with a narrow, hyaline, elongate sheath (Mapook et al. 2020). Asexual morph: Undetermined.
Notes: Pseudocapulatispora longiappendiculata was isolated from a dead stem of Chromolaena odorata in Thailand (Mapook et al. 2020). Pseudocapulatispora is distinct in Lophiostomataceae by its sheath drawn out to form polar appendages with tips of the sheath capped (Mapook et al. 2020). Capulatispora Thambug. & K.D. Hyde has a similar sheath but it mostly has cylindric-clavate asci and fusiform ascospores with narrowed and acute ends (Thambugala et al. 2015). Phylogenetic analysis supported them as distinct genera (Thambugala et al. 2015; Mapook et al. 2020). We collected a new specimen of P. longiappendiculata from freshwater habitats.
Type species: Pseudocapulatispora longiappendiculata Mapook & K.D. Hyde.
Other accepted species: Species Fungorum – search Lophiostoma.
Figure 1 – Pseudocapulatispora longiappendiculata (MFLU 18-1188, new habitat and geographical record). a, b Appearance of ostiolar papilla erumpent through host substrate. c Vertical section of ascoma. d Structure of peridium. e–h Bitunicate asci. i Pseudoparaphyses. j–l Ascospores. m Germinated ascospore. n, o Colony on PDA (up-front, down-reverse). Scale bars: c = 100 μm, d–l = 20 μm, m = 50 μm
References
Entry by
Wei Dong, Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming 650500, China, Department of Entomology and Plant Pathology, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand, Innovative Agriculture Research Center, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand, Institute of Plant Health, Zhongkai University of Agriculture and Engineering, Haizhu District, Guangzhou 510225, China
Published online 22 May 2026