Fungalpedia – Note 2419, Aliquandostipite
Aliquandostipite. Inderb.
Citation when using this data: Dong W et al. 2020 – Fungalpedia, Ascomycota.
Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig 1
Classification: Aliquandostipitaceae, Jahnulales, Incertae sedis, Dothideomycetes, Pezizomycotina, Ascomycota, Fungi
Saprobic on submerged wood or fallen, decorticated branch. Sexual morph: Mycelium visible on the substratum, of wide hyphae (> 10 µm and up to 50 µm wide), which may bear ascomata. Ascomata scattered to clustered or gregarious, immersed to erumpent or superficial, uniloculate, globose to broadly ellipsoidal, dimorphic, with or without stalk-like hypha attached to the base, hyaline or pale brown when young, turn to dark brown with age, membranous, papillate. Peridium thin, one-layered, composed of pale brown, thin-walled cells of textura angularis to globosa. Pseudoparaphyses numerous, cellular, sparsely branched, hyaline, septate. Asci 8-spored, bitunicate, fissitunicate, clavate, with thickened apical region. Ascospores bi- to multi-seriate, variably arranged, oval, pale brown, 1-septate, constricted at the septum, usually asymmetric, mostly with a well-developed hyaline sheath (Inderbitzin et al. 2001). Asexual morph: Undetermined.
Notes: Aliquandostipite was introduced to accommodate two species A. khaoyaiensis Inderb. and A. sunyatsenii Inderb., which form dimorphic ascomata (sessile and stalked) and the widest hyphae known from ascomycetes (Inderbitzin et al. 2001). However, with Jahnula sequences added in the phylogenetic tree, A. sunyatsenii clustered in Jahnula with high bootstrap support, which was therefore transferred to Jahnula based on limited data (Pang et al. 2002). Among six species recorded in Index Fungorum (2020), four have been confirmed in Aliquandostipite with molecular data (Huang et al. 2018; Hyde et al. 2019). Aliquandostipite is similar to Jahnula, but can be distinguished from the latter by its hyaline or less pigmented ascomata and larger asci and ascospores.
According to our observations and literature, the ascospores of A. crystallinus Raja et al., A. khaoyaiensis and A. minuta Raja & Shearer form acicular crystals when stored in lactic acid and glycerin (Raja et al. 2005; Raja and Shearer 2007). These three taxa, however, can be distinguished based on the gelatinous sheath and appendages on ascospores. Aliquandostipite siamensiae (Sivichai & E.B.G. Jones) J. Campb. et al. is the only species producing dimorphic ascospores. Aliquandostipite manochiae Sri-indr. et al. is distinct in that it has branched and anastomosing pseudoparaphyses, lacking arcicular crystals within the spores, and ascospore size (Liu et al. 2015). Aliquandostipite manochiae might be synonymous with A. khaoyaiensis (Inderbitzin et al. 2001) based on their similar morphological features, overlapping dimension of ascomata, asci, and ascospores, and their freshwater habitats.
Type species: Aliquandostipite khaoyaiensis Inderb.
Other accepted species: Species Fungorum – search Aliquandostipite.
Figure 1 – Aliquandostipite khaoyaiensis a–h, l, m (MFLU 18-1573, new geographical record), i–k (MFLU 18-1554, new geographical record). a, b, i Ascomata on host surface.
c Vertical section of ascoma. d Structure of peridium. e Pseudoparaphyses. f, j Bitunicate asci. g, h, k Ascospores. l, m Colony on PDA (left-front, right-reverse). Scale bars: c = 100 μm, d = 30 μm, e, g, h = 20 μm, f, j, k = 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 21 May 2026