Jahnulales » Aliquandostipitaceae » Aliquandostipite

Aliquandostipite khaoyaiensis

Aliquandostipite khaoyaiensis Inderbitzin

Index Fungorum number: IF 483979


Sexual morph: Saprobic on submerged wood. Sexual morph: Ascomata 220–240 μm high, 190–210 μm diam., hyaline to pale brown, become dark brown with age, scattered, superficial, sometimes seated in a pseudostroma, globose or subglobose, sessile, membranous, with ostiolate papilla. Peridium 25–40 μm thick, membranous, composed of thin-walled, pale brown, compressed cells of textura angularis. Pseudoparaphyses 2 μm diam., numerous, cellular, sparsely branched, hyaline, septate. Asci 115–175 × 35–65 μm (x̄ = 145 × 45 μm, n = 20), 8-spored, bitunicate, fissitunicate, clavate, thickened at the apex, sessile or short pedicellate, with a well-developed ocular chamber. Ascospores 50–70 × 14.5–19.5 μm (x̄ = 63 × 17 μm, n = 20), variably arranged in asci, oval, hyaline  to pale brown, 1-septate, constricted at the septum, asymmetric, upper cell slightly shorter and wider than lower cell, guttulate, straight or curved, thin-walled, smooth, sheathed. Sheath first appressed to the ascospore wall, expanding and detaching from the polar regions when mounted in water, becoming balloon-like at the two poles, finally surrounding the entire ascospore. Asexual morph: Undetermined. (Descriptions from Dong et al. 2020)


Specimen examined: Costa Rica (Raja et al. 2005), USA (Raja et al. 2009), THAILAND, Songkhla Province, on submerged wood in a stream (Dong et al. 2020)


Fig. Aliquandostipite khaoyaiensis (J.L.Crane & A.N. Miller, F89-1). a–d, f A. (F89-1). a. Stalked ascoma. b. Ascospore with slug-like gelatinous sheath in nigrosin. c, d. Asci.  f. Ascospore with thick-walled gelatinous sheath. (Photo grabbed from Dong et.al 2020).



Dong, W., Wang, B., Hyde, K.D., McKenzie et al. (2020) Freshwater Dothideomycetes. Fungal Diversity

Raja HA, Ferrer A, Shearer CA (2005) Aliquandostipite crystallinus, a new ascomycete species from wood submerged in freshwater habitats. Mycotaxon 91, 207–215

Raja HA, Ferrer A, Shearer CA (2009) Freshwater ascomycetes: a new genus, Ocala scalariformis gen. et sp. nov, and two new species, Ayria nubispora sp. nov. and Rivulicola cygnea sp. nov. Fungal Diversity 34, 79–86


About Freshwater Fungi

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