Freshwater Ascomycetes - Species Monograph

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Genus	Species	Author
Aniptodera	lignatilis	Kevin D. Hyde
Class	Order	Family
Sordariomycetes	Halosphaeriales	Halosphaeriaceae

Genbank ID: 232007 MycoBank ID: 355474

Synonymy:

Description

Habit:

Immersed, partly immersed to occasionally superficial on wood.

Ascomata:

Ascomata globose, subglobose or occasionally pyriform, immersed, semi-immersed or less commonly superficial, hyaline to cream coloured, with a short papilla either directly above the ascoma, or ascoma hoizontal to host ssurface with neck bending upwards, membranous, solitary or gregarious.

Peridium:

Peridium of 3-6 layers of thick-walled elongate cells. Catenophyses present, 18-23 µm thick.

Beak:

Beak light-coloured, short, with periphyses.

Hamathecium:

Hamathecium absent.

Ascus:

Asci 8-spored, clavate with a flattened tip, tip thickened with an indistinct pore or plug, plasmalemma behind apical region retracted, pedunculate, persistent, with probable active spore release, 128-171 x 28-39.5 µm.

Ascospore:

Ascospores bi-triseriate, hyaline, fusiform, 2-celled, with weakly acute apices, appendages developing at each of the poles, 35-55 x 11.5-17 µm.

Sheath:

Sheath at first appears as sickle-shaped structure derived from the ascospore pole which extend to the central septa. The appendages dissolve in water to form filamentous threads.

Appendage:

Appendages unfurl in water to form long thread-like structures.