Observation 113606: Cladonia P. Browne

When: 2012-10-13

Collection location: Parque de Monsanto, Lisboa, Portugal [Click for map]

Who: zaca

No specimen available

Proposed Names

58% (1)
Eye3 Eyes3
Based on chemical features
28% (1)
Recognized by sight: extremely coarse thick “soredia”, blunt podetia
Used references: British Flora and New England Flora
Based on chemical features: apparently fumarprotocetraric alone

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
You’re right
By: Jason Hollinger (jason)
2012-10-17 12:21:01 PDT (-0700)

Maybe they are the same thing. Trevor Goward (he follows Ahti’s interpretation, I think) claims that C. coniocraea often has soredia under the squamules.

I was looking …
By: zaca
2012-10-17 11:51:36 PDT (-0700)

to my past observations at this place and conclude that observation 51284 was exactly from there (another tree, maybe). The curious thing is that the young squamules look identical and are also sorediate underneath (see, in particular, the photo with the alga Trentepohlia there). Moreover, the chemistry is identical. Can this be the young version of that species?

How frustrating!
By: Jason Hollinger (jason)
2012-10-16 15:13:58 PDT (-0700)

Seems like we can’t get anywhere with any of your Cladonia! I’m interpreting the spot tests as K+ brownish, therefore only fumarprotocetraric acid. There are definitely well-developed podetia without cups (scyphi). I think the choices are:

C. coniocraea – less familiar with this than others, but from what I can tell, the soredia are finer and cover the podetia more thinly, and the podetia are more tapered and pointy than yours

C. subulata – don’t know this well, but what I’ve seen has very fine soredia and at least a few branches at the top of the podetia

C. ramulosa – don’t know this species at all, but chemistry is right, and the photo in the New England flora shows the same abundant, very coarse “soredia”; it is known from Macaronesia… in fact the description in the British Flora sounds promising, the more I think about it…

Created: 2012-10-16 14:34:18 PDT (-0700)
Last modified: 2012-10-16 15:15:12 PDT (-0700)
Viewed: 29 times, last viewed: 2017-06-14 04:14:57 PDT (-0700)
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