Observation 17595: Arrhenia epichysium (Pers.) Redhead, Lutzoni, Moncalvo & Vilgalys
When: 2009-01-31
Herbarium specimen reported

Notes: Microphotographs show long, knobby, tortuous pleurocystidia, sarcodimitic trama, and long, strangulate-stalked basidia.
Inamyloid, broadly elliptical spores 6.5 μm long x 4.5 μm wide, with fairly obvious hilar appendage.

Herbarium specimen is very poor. Gilbert Lab, UCSC.

Species Lists

Images

35608
Copyright © 2009 Christian F. Schwarz
Basidiomes.
35609
Copyright © 2009 Christian F. Schwarz
Incrusted pileocystidia with abundant clamp connections. (1000x)
35610
Copyright © 2009 Christian F. Schwarz
Long, strangulate basidia.
35611
Copyright © 2009 Christian F. Schwarz
Tortuous cystidia.
35612
Copyright © 2009 Christian F. Schwarz
Lamellar trama – note long, smooth, aseptate skeletal hypha. This indicates a sarcodimitic hyphal system.
35613
Copyright © 2009 Christian F. Schwarz
Spore. Spores were very scarce in the mount.

Proposed Names

85% (1)
Eye3 Eyes3
Used references: Mykoweb
Based on microscopic features: See description.

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Better photos here
By: Christian (Christian Schwarz)
2011-05-06 11:20:27 CDT (-0500)
Wow, Christian! Bang-up job on those micrographs!
By: Debbie Viess (amanitarita)
2009-02-04 22:35:59 CST (-0600)

torturous pleurocystidia indeed. and killer clamps! you make it look easy…

Created: 2009-02-04 20:33:28 CST (-0600)
Last modified: 2011-05-06 11:20:27 CDT (-0500)
Viewed: 98 times, last viewed: 2017-06-14 10:54:18 CDT (-0500)
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