Observation 20565: Boletellus dissiliens (Corner) Pegler & Young
When: 2009-02-07
Herbarium specimen reported

Notes: Corner described and illustrated this bolete. Cap has flattened felty patches that may or may not develop into squamules (erect, suberect or flattened). This are pale colored with a hint of pink (pinkish buff). The pileus flesh is yellow and quickly blue. This contrasts with a whitish stipe that stains brownish pink (rufescent) or a dirty orange on the surface AND in the flesh. This is completely different from B. emodensis (Old World) and B. ananas (New World).

Specimens on deposit in BRI & NY (Halling #s 9022, 9073)

Images

41924
Brownish orange staining of white stipe surface; development of dull reddish pores with age; flattened felt-like patches developing into squamules. Natural light. Halling #9022.
41925
Shows the differential staining in the pileus flesh and the stipe flesh. Natural light. Halling #9073

Proposed Names

91% (2)
Eye3 Eyes3
Used references: Corner’s Boletes of Malaysia
Based on microscopic features: Spores longitudinally ribbed with cross striae

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Spores & B. ananas
By: Roy Halling (royh)
2009-04-25 07:25:06 PDT (-0700)

Thanks J.H for noting the link . . . and Clive, so far, I’m inclined that B. ananas is strictly a New World species. That could change, however, with more exploration and further refinement of concepts.

here is…
By: Johannes Harnisch (Johann Harnisch)
2009-04-24 17:21:40 PDT (-0700)

here is a photo of spores of the two species

http://www.nybg.org/...

possibly
By: Clive Shirley (myxo)
2009-04-24 15:33:47 PDT (-0700)

Roy,
Have you coincided Boletellus ananas

Created: 2009-04-24 13:51:33 PDT (-0700)
Last modified: 2009-04-24 13:51:33 PDT (-0700)
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