Observation 44512: Boletellus ananiceps (Berk.) Singer
When: 2010-03-25
Herbarium specimen reported

Notes: The general appearance of an “over-the-hill” Boletellus ananas gets my attention in Australia!! Boletellus ananas does not occur there. When cut longitudinally, the YELLOW flesh in the pileus is quickly obscured by the BLUE oxidation – it makes the pileus flesh appear white. The stipe flesh is WHITE and oxidizes to a BROWNISH ORANGE. The stipe surface is also WHITE, not RED as in Boletellus emodensis, and is more similar to Boletellus dissiliens.

These entities seem to ‘fruit’ near or on dead wood or stumps, or occasionally living tree bases. Not truly lignicolous, but seems that ample moisture is trapped here.

Herbarium specimens in BRI & NY (REH9276).

Images

83782
Solitary and manipulated for photography.
83783
Underexposed unintentionally, but shows the pallid stipe and pores that develop brownish red tints with maturity.
83784
Basidiospores at 40x (Nomarski DIC).

Proposed Names

92% (2)
Eye3 Eyes3
Recognized by sight: The lack of some red and subsquamose pileus, pallid stipe, and peculiar oxidation reactions are useful features here.
Based on microscopic features: The spores have narrow ribs lacking cross-striae

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Eye3 = Observer’s choice
Eyes3 = Current consensus

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Created: 2010-04-21 16:11:42 BST (+0100)
Last modified: 2014-01-14 00:13:48 GMT (+0000)
Viewed: 233 times, last viewed: 2016-10-28 11:24:38 BST (+0100)
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