Observation 77941: Cladonia pyxidata (L.) Hoffm.

When: 2011-10-03

Collection location: Beaver Co., Pennsylvania, USA [Click for map]

Who: Bob Zuberbuhler (Bob Z)

No specimen available

Lichen with tiny white thalli found on a mossy stump



Proposed Names

28% (2)
Recognized by sight
56% (1)
Recognized by sight: Sometimes the red tips look quite brown in photos and can fool you. But I think this is the best name given that we can’t do a definitive KC test to verify lack of usnic acid.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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By: Bob Zuberbuhler (Bob Z)
2011-10-06 00:59:07 AEDT (+1100)


I’ve removedthe first photo. There is no red on this species so, according to your note, it is probably Cladonia pyxidata. Should we name it that?


Two species of Cladonia
By: Jason Hollinger (jason)
2011-10-04 18:21:43 AEDT (+1100)

The first photo looks like maybe C. coniocraea: finely sorediate except at base of stalks, stalks arising from center of relatively large squamules. But you could also check C. rei or maybe even C. subulata, I suppose.

The second two photos show a species with cupped stalks and microsquamules instead of soredia. It may even have reddish tips. If red, try C. borealis or C. coccifera; if brown try C. pyxidata.

Created: 2011-10-04 11:56:26 AEDT (+1100)
Last modified: 2011-10-06 06:06:42 AEDT (+1100)
Viewed: 39 times, last viewed: 2017-06-10 14:11:36 AEST (+1000)
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