Observation 34564: Acarospora hilaris (Dufour) Hue

When: 2007-09-02

Collection location: Penedo Durão, Freixo de Espada à Cinta, Portugal [Click for map]

Who: AnPena

No specimen available

Lichen on some kind of metamorphic rock (crag) near the Douro river.


Copyright © 2007 António Pena

Proposed Names

28% (1)
Recognized by sight
1% (2)
Used references: Chris’ suggestion
56% (1)
Used references: see AnPena’s comment

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= Observer’s choice
= Current consensus


Add Comment
By: Jason Hollinger (jason)
2011-04-26 12:42:47 PDT (-0700)

We don’t really have yellow Acarospora with proper lobate margins like that. Thanks for correcting me.

By: AnPena
2011-04-26 04:41:59 PDT (-0700)

By looking at this nature guide (Guía de Campo de los Líquenes, Musgos y Hepáticas, by Volkmar Wirth and Ruprecht Dull), I think Acarospora hilaris is the best bet for this species since Pleopsidium flavum is a lichen found in high grounds in Iberia and Acarospora hilaris is a mediterranean species and I found it in a mediterranean environment at low altitude.

By: Jason Hollinger (jason)
2011-04-23 22:05:13 PDT (-0700)

The Candelariella medians is really neat (I wish ours were so pretty!), but even that species is dispersed-areolate and not lobate around the margin like this thing. I’d go with Pleopsidium flavum until proven otherwise. (It does occur in Europe according to Nash et al. in Sonoran Flora.)

Candelariella medians
By: Chris Parrish (kitparrish)
2010-03-06 22:27:55 PST (-0800)

This resembles the photo of Candelariella medians in Dobson’s field guide to the British and Irish lichens. Valter Jacinto has posted a photo of Candelariella medians from Portugal on flickr.

Created: 2010-03-06 14:25:39 PST (-0800)
Last modified: 2011-04-26 12:43:26 PDT (-0700)
Viewed: 185 times, last viewed: 2019-02-02 02:48:25 PST (-0800)
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