Observation 57450: Irpex lacteus (Fr.) Fr.

When: 2010-10-29

Collection location: Beaver Co., Pennsylvania, USA [Click for map]

Who: Bob Zuberbuhler (Bob Z)

No specimen available

A toothed crust found on an upright dead tree. The teeth were long, flat and jagged at the tip. I could find no pores anywhere. I think this may be Hydnochaete olivaceus but couldn’t see setae and don’t know whether this species ever has shelves. What are the roudish projections in a patch adjacent to teeth?

Proposed Names

35% (2)
Recognized by sight
43% (2)
Recognized by sight
27% (1)
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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most definitely
By: Danny Newman (myxomop)
2012-11-20 02:58:45 PST (-0800)

though the >3mm tooth length doesn’t seem enough to call this Spongipellis

Teeth were > 3mm.
By: Bob Zuberbuhler (Bob Z)
2012-11-17 10:10:41 PST (-0800)

The “teeth” were more than 3mm long as I remember them. Do you think the teeth and the shelves were the same organism?

the roundish projections
By: Danny Newman (myxomop)
2012-11-16 23:03:52 PST (-0800)

look vaguely like the remnants of termites or some other wood burrowing insect. just how long were the teeth? more than 3mm?

Created: 2010-10-29 05:55:45 PDT (-0700)
Last modified: 2012-09-08 07:30:24 PDT (-0700)
Viewed: 103 times, last viewed: 2017-07-02 13:00:13 PDT (-0700)
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