Observation 18206: Boletus fibrillosus Thiers
When: 2009-02-08
Herbarium specimen reported

Notes: cracked to areolate dry, brownish-yellow cap (weeks of dry weather prior to a soaking rain).

immediate vinaceous staining on stipe when handled.

reticulate upper stipe, raised streaks down stipe, brownish.

flavor pleasant/mild, smell not noted.

pores pale yellow, darkening to dull yellow-green w/age.

spore print very slight and dilute w/mush goo, but appears somewhat ochre-y.

KOH: quickly bright orange-red on cap surface; negative on all context.

am repeating spore-print with another decent chunk of pores.

well worm-bit; on dryer.

[admin – Sat Aug 14 02:04:58 +0000 2010]: Changed location name from ‘Pt. Reyes Fungus Fair’ to ‘Point Reyes National Seashore, Marin Co., California, USA

Images

35915
immediate vinaceous staining, fine, pale yellow pores, reticulate upper stipe, brownish cap.
35916
35917
immediate color rxn. to KOH.
35918
negative KOH rxn. on context(note streak).
35919
spore print.

Proposed Names

5% (2)
Eye3
Recognized by sight: I at first thought fibrillosus, but the vinaceous staining is throwing me!
Collected at Pt. Reyes NS, Sky Trail, under conifers.
11% (2)
Eye3 Eyes3
Recognized by sight: everything but the purple staining fits, and there may be some strange reason why this staining occured on this particular mushroom. It’s our best name for now.

Please login to propose your own names and vote on existing names.

Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

Add Comment
prob. not T. ammiratii, altho nice to see something else that stains purplish!
By: Debbie Viess (amanitarita)
2009-02-11 07:07:58 PST (-0800)

pore surface doesn’t bruise, not white or vinaceous (yellowish-green at maturity) stipe is bulbous and reticulate, no color changes when sectioned. T. ammiratii also apparently occurs under deciduous oak (black oak), not present along the Sky Trail!

Tylopilus ammiratii
By: Darvin DeShazer (darv)
2009-02-10 21:29:57 PST (-0800)

Tylopilus ammiratii has a stipe that stains purplish.

Created: 2009-02-10 19:56:28 PST (-0800)
Last modified: 2011-04-25 10:35:47 PDT (-0700)
Viewed: 208 times, last viewed: 2016-03-21 02:11:13 PDT (-0700)