Freshwater Ascomycetes - Species Monograph

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Genus	Species	Author
Luttrellia	halonata	A. Ferrer & Shearer
Class	Order	Family
Sordariomycetes	Halosphaeriales	Halosphaeriaceae

MycoBank ID: 504786

Synonymy:

Description

Habit:

Ascomata immersed or partially immersed in wood.

Ascomata:

Ascomata on wood 250–300 x 230–280 mm, partially immersed to immersed in the substrate, globose to subglobose, membranous, black, ostiolate.

Peridium:

Peridium 10–15 mm thick, composed of 5–6 cell layers of dark, globose to elongated cells.

Beak:

Neck 50 x 55 mm, cylindrical, dark brown.

Hamathecium:

Hamathecium of catenophyses, 15–18 mm wide, septate, hyaline.

Ascus:

Asci 145–165 x 25–32 mm, unitunicate, cylindrical, short pedicellate, thin walled, lacking an apical pore, 4-spored, uniseriate, irregularly arranged, early deliquescent.

Ascospore:

Ascospores 36–52 x 26–32 mm (mean = 44.5 x 28.0 mm, n = 30), broadly ellipsoidal-fusiform to ellipsoidal, hyaline, 5-septate, not constricted at septa, thick-walled (3.0–5.0 um), surrounded by a thick, gelatinous sheath about 5–10 mm wide. Ascospores accumulate in a mass at tip of the neck after discharge.

Sheath:

Gelatinous sheath about 5–10 mm wide, with irregular margin, surrounding entire ascospore.

Appendage:

Not observed.

Culture:

Anamorph:

Not observed.

Other info

Type & Location:

ECUADOR: NAPO, Yasuni National Park, Tiputini River, 9°10ÕN, 79°51ÕW, water temperature 26 C, pH 5.5–6, on submerged decorticated wood, 4 April 2004, AF, AF134-1. (ILL). HOLOTYPE.

Other Specimens:

Substratum:

Submerged woody debris.

Habitat:

Lotic.

Distribution:

Ecuador.

Pertinent Literature:

Ferrer & Shearer 2007.

Comments:

Additional Pictures

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