Observation 122751: Lindtneria Pilát
When: 2013-01-07
No herbarium specimen

Notes: Nhu Nguyen collected this with Else Vellinga near the UC football stadium under coastal live oak. and Pinus muricata.

I’m tentatively calling this Lindtneria because of the cyanophilus globs in the basidia. I looked at Tomentellopsis briefly, but the spore ornamentation is too subtle and the presence of cystidia (assuming they really are cystidia) is not consistent. The lack of clamps seems to eliminate Trechispora. if I interpret the cystidia as cystidioles then there is president in Lindtneria and it keys to L. hydnoidea, but the spores are too small for that species 4-5 X 3-4 versus 7.5-9.5 X 7-9. The cyanophilus inclusions in the basidia are supposed to be the primarily, defining feature of Lindtneria, and this are weird enough that I’m leaning toward that genus, but if that is correct, its not a species that is in the European key.

Species Lists

Images

302184
302186
Cystidioles – two in image
302187
basidium in meltzers
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basidium in cotton blue
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basidium & spores in cotton blue
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basidium in cotton blue

Proposed Names

28% (1)
Eye3 Eyes3
Used references: Worked through the Keys in Corticiaceae s.l Fungi Europaei to several dead ends
Based on microscopic features: Spores minutely spiny, hyaline, non-amyloid or dextrinoid. 4-5 X 3-4; Basidia clavate 20 X 6.5 and with Cyanophilus globs; cystidia narrowing to tip, thin-walled, non-incrusted, SV-, 40 X 2 (at tip), no clamps, but some odd bumps that are not associated with septa.

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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probably a Tomentellopsis species
By: Karen Nakasone (kkn)
2013-04-08 14:35:42 PDT (-0700)

This is a puzzle. The consistency of the specimen is more like that of Tomentellopsis rather than Lindtneria. Its basidia resemble that of Tomentellopsis pulchella (Mycotaxon 107:57. 2009) although the ornamentation on the spores is quite understated compared to other Tomentellopsis species. Tomentellopsis pulchella and T. pusilla have smallish basidiospores, 4.5-5.5 um and 4.6-5.5 um, respectively.
The shape and size of the basidia and basidiospores preclude genera such as Trechispora, Hypochnicium, Botryohypochnus, Gloeocystidiellum s.l.
Tomentellopsis seems like the best generic placement.

Created: 2013-01-13 13:01:38 PST (-0800)
Last modified: 2013-01-13 13:01:44 PST (-0800)
Viewed: 49 times, last viewed: 2016-10-24 00:02:07 PDT (-0700)
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