Observation 54669: Auricularia nigricans (Fr.: Fr.) Birkebak, Looney, & Sánchez-García
When: 2009-01-10
Herbarium specimen reported

Notes: Dried specimen obtainable with permission from el Herbario Nacional de Bolivia

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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By: patty (patty)
2010-11-18 16:23:42 CST (-0600)

The split in the key is based on hair length.

Hairs on sterile surface 450μ long or more is A. polytricha, less than 250μ long goes to A. delicata or A. fusco-succinea

Here’s a photo of A. fuscosuccinea from Puerto Rico… http://www.cortland.edu/nsf/8468Auri.HTML

By: Danny Newman (myxomop)
2010-11-16 03:07:03 CST (-0600)

tough call with just that to go off of. were there no other defining characteristics between the two?

From RWG Dennis’ Fungus Flora of Venezuela
By: patty (patty)
2010-11-14 06:54:51 CST (-0600)

A. polytricha
“Hairs of the sterile surface 450μ long or more, hymenial surface often reticulately veined”

A. fusco-succinea
“Hymenial surface smooth to vaguely wrinkled, hairs 60-80 × 4-5 μ”
“Old records as A. auricula-judae (Bull.) Schroet. and A. sambucina Mart. may refer to this or to A. polytricha”

A. auricula is not included in the key.

By: Danny Newman (myxomop)
2010-10-07 17:34:31 CDT (-0500)

some literature on A. polytricha and A. fuscosuccinea could prove useful in distinguishing the two from each other. by photographs alone, they look awfully similar.

this is a start for anyone with a knack for latin:


Created: 2010-10-03 17:02:11 CDT (-0500)
Last modified: 2013-12-01 16:14:02 CST (-0600)
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