Observation 137895: Lentinula raphanica (Murrill) Mata & R.H. Petersen
When: 2013-06-07
0 Sequences

These were growing on a mossy log in the Big Sandy Creek Unit.
Caps were up to 4.1 cm across.
While the stem was relatively tough, the cap was fairly fragile.
Spore print was white and spores not amyloid.
Spores ~ 5.5-7.0 X 2.6-3.0 microns, cylindric and smooth.

Not much confidence in my tentative ID.
Did not really notice any reddish bruising of the gills.

Other suggestions welcomed.

Proposed Names

57% (1)
Recognized by sight: No records of L. boryana have been confirmed from the US in some 25 years of focused efforts on the genus and its specific distribution.
Used references: Mata et al., “The Genus Lentinula in the Americas.” Mycologia 93.6 (2001): 1102-1112. (http://0-www.jstor.org.catalog.multcolib.org/stable/3761671) + personal correspondence with Dr. Mata.
Based on microscopic features: “Lentinula raphanica can be distinguished from L. boryana by the shape of the cheilocystidia and basidiospore dimensions. Cheilocystidia of L. raphanica are clavate and frequently knobbed or diverticulate at the apex and somewhat smaller in size. Spores of L. raphanica have a narrower shape, more subcylindrical than oblong, judged by its higher mean ratio of Q = 2.16. Caulocystidia are also different, more clavate and knobbed in L. raphanica than in L. boryana.” (Mata et al. 2001)

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Spore measurements
By: Danny Newman (myxomop)
2013-07-29 21:35:01 CEST (+0200)

are within the ranges of both L. boryana and L. raphanica, but have the narrower, “subcylindrical” shape characteristic of L. raphanica. See the figures in the article referenced in the name proposal for an illustrated comparison.

Created: 2013-06-29 01:13:03 CEST (+0200)
Last modified: 2013-07-29 21:32:01 CEST (+0200)
Viewed: 49 times, last viewed: 2017-07-14 05:25:33 CEST (+0200)
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