Observation 88015: Cliostomum griffithii (Sm.) Coppins

When: 2012-02-19

Collection location: Spencer Island, Snohomish Co., Washington, USA [Click for map]

Who: Richard Droker (wanderflechten)

Specimen available

on bark of dead branch Alnus Rubra

this is an area of relatively low air quality (near interstate highway and agriculture)

Jason Hollinger suggested C. griffithii – thanks! Although the morphology really fit, initially this seemed problematic because the 1st section was polarization negative, the spores were somewhat large (17 × 4) and most were 2- and 3-septate.

Species Lists


image is 12mm across
7.5mm across (one of the larger apothecia)

Proposed Names

83% (1)
Eye3 Eyes3
Used references: Nash III, T.H., Ryan, B.D., Diederich, P., Gries, C. and Bungartz, F. (eds) (2004) Lichen Flora of the Greater Sonoran Desert Region, Volume 2, Smith, C.w., Aptroot, A., Coppins, B.J., Fletcher, A., Gilbert, O.L., James, P.W. and Wolseley, P.A. (2009) The Lichens of Great Britain and Ireland
Based on microscopic features: see photos; spores average ca. 13 × 4 1-septate

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
First saw this in so. Cal. a few months ago
By: Jason Hollinger (jason)
2012-02-19 20:47:19 EST (-0500)

What do you know, now it’s everywhere! Gets around fast, doesn’t it? :)

Created: 2012-02-19 19:55:35 EST (-0500)
Last modified: 2012-02-19 19:55:59 EST (-0500)
Viewed: 58 times, last viewed: 2017-09-24 18:56:25 EDT (-0400)
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