Name: Annulohypoxylon thouarsianum (Lév.) Y.M. Ju, J.D. Rogers & H.M. Hsieh
Most Confident Observations:
12051
Copyright © 2008 Darvin DeShazer (darv)
731784
Copyright © 2017 Darvin DeShazer (darv)
701184
Copyright © 2016 Nicolle Omiotek (Lilmyco)
45979
Copyright © 2009 Shane Marsh (Mushane)
Version: 8
Previous Version 


First person to use this name on MO: Erlon
Editors: Nathan Wilson, Jason Hollinger

Nomenclature:
Classification:

Domain: Eukarya

Kingdom: Fungi

Phylum: Ascomycota

Class: Sordariomycetes

Order: Xylariales

Family: Hypoxylaceae

Genus: Annulohypoxylon

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Notes on Taxonomy: [Edit]

See: Hsieh, H.-M. , Ju, Y.-M. & Rogers, J.D. (2005). Molecular phylogeny of Hypoxylon and closely related genera. Mycologia 97(4): 844-865.

Note: I’ve tentatively marked the version without dashes in the authority as the “correct” version (to conform with indexfungorum). If we’d prefer to conform to mykoweb instead, I’ve no problem with that. -Jason

Additional Note: Please do not deprecated “Aaa bbb” in favor of “Aaa bbb var. bbb”, as there are cases when variety is not certain and “Aaa bbb” is in fact the best name to use. Instead, encourage use of variety by commenting or by proposing the variety yourself. Thanks! -Jason

These notes come from Annulohypoxylon thouarsianum (Lév.) Y.-M. Ju, J.D. Rogers & H.-M. Hsieh when it was merged with this name:

See: Hsieh, H.M. , Ju, Y.M. & Rogers, J.D. (2005). Molecular phylogeny of Hypoxylon and closely related genera. Mycologia 97(4): 844-865.

Note: I’ve tentatively marked the version without dashes in the authority as the “correct” version (to conform with indexfungorum). If we’d prefer to conform to mykoweb instead, I’ve no problem with that. -Jason

Additional Note: Please do not deprecated “Aaa bbb” in favor of “Aaa bbb var. bbb”, as there are cases when variety is not certain and “Aaa bbb” is in fact the best name to use. Instead, encourage use of variety by commenting or by proposing the variety yourself. Thanks! -Jason

I got rid of the version with dashes since I don’t see a value in keeping both. It’s not like someone is going to be unclear on what is meant. Also this means I don’t have to add another naming for every observation marked with the name with dashes. -Nathan

Brief Description:

This is probably the most commonly encountered large, hemispherical Annulohypoxylon in North America. It has large (from about 0.5 cm up to about 5 cm diameter; typically 1-2 cm) hemispherical to spherical stromata with mostly inconspicuous perithecial mounds, and is black or dark brown in colour with very dark granules immediately beneath the hard outer crust (visible with dissecting microscope). The interior tissues have a vaguely zoned appearance, with radial structure from the attachment point, and are woody or hard-corky in texture; the interior has much the same feeling as well a piece of charcoal. There are dull green pigments extractable with 10% KOH.

The perithecia are obvoid or sub-globose, 0.3-0.7 mm diam x 0.5-1.3 mm high. The ostioles are slightly papillate, with an obvious annular (truncatum-type) disc, about 0.2-0.5 mm in diameter.

The ascospores are brown, unicellular, ellipsoid-inequilateral (like a flattened football), with narrowly rounded ends. The measure 14-24 × 4-5.5 µm, with straight, spore-length germ slit on the flattened (less curved) side of the spore. The also have a perispore (clear layer around the spore) that does not dehisce in 10% KOH; both the perispore and the epispore are smooth (no noticeable texture).

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Created: 2010-02-26 13:56:11 CST (-0600) by Erlon (Herbert Baker)
Last modified: 2013-06-01 05:51:41 CDT (-0500) by Nathan Wilson (nathan)
Viewed: 526 times, last viewed: 2018-09-24 03:33:33 CDT (-0500)
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