Longipedicellata H. Zhang, K.D. Hyde & J.K. Liu, 2016

Zhang, Huang, Dong, Wei, Hyde, Kevin D., Bahkali, Ali H., Liu, Jian-Kui, Zhou, De-Qun & Zhang, Di, 2016, Molecular data shows Didymella aptrootii is a new genus in Bambusicolaceae, Phytotaxa 247 (2), pp. 99-108 : 102-104

Longipedicellata H. Zhang, K.D. Hyde & J.K. Liu , gen. nov.

Index Fungorum number: IF551685, Facesoffungi number: FoF:01272

Etymology:—in reference to pedicel become long when released.

Saprobic on submerged bamboo culms in freshwater. Sexual morph: Ascomata small, lenticular, immersed, beneath a blackened pseudoclypeus, scattered or clustered, coriaceous, ostiolate. Ostiole relatively large, central, short, dark.

FIGURE 2. Longipedicellata aptrootii (from MFLU 10-0162!) A. Appearance of taxon on wood. Note the large spreading pseudoclypeus, raised areas, which are the ascomata and hyaline released asci. B. Vertical section of ascoma. Note the darkened pseudoclypeus above the ascoma. C. Peridium comprising a few layers of textura angularis. D. Mature and immature asci. E. Apex of an ascus showing the ocular chamber. F. Pedicel of ascus in lactophenol. G. Various stages of the fissitunicate dehiscence. Arrow showing endoascus released from ectoascus. H–J. Ascospores with mucilaginous sheath. J is in India ink. Scale bars: B = 100 μm, C = 5 μm, D – E = 10 μm, F–G= 15 μm, H = 20 μm, I – K = 10 μm.

Peridium thin, comprising 3 or 4 layers of brown, thin-walled, flattened cells of textura angularis. Pseudoparaphyses absent. Asci 8-spored, bitunicate, broadly clavate, pedicellate, becoming long when released, with an ocular chamber. Ascospores 2–3-seriate, broad fusiform to ellipsoidal, hyaline, 1-septate, asymmetrical, constricted at the septum, thin-walled, surrounded by mucilaginous sheath. Asexual morph: Undetermined.

Type species: Longipedicellata aptrootii (K.D. Hyde & S.W. Wong) H. Zhang, K.D. Hyde & J.K. Liu