When: 2014-05-17

Collection location: Jamor, Oeiras, Portugal [Click for map]

Who: zaca

No specimen available

Growing on bark. Sorediate specimen.


Underside of thallus.
K test on medulla.

Proposed Names

-58% (1)
Recognized by sight
-28% (1)
Recognized by sight
31% (2)
Recognized by sight: See the comments.

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= Observer’s choice
= Current consensus


Add Comment
By: zaca
2014-05-19 15:28:48 PDT (-0700)

is the one of the two appearing in the checklist.

I agree that it is unusual
By: Jason Hollinger (jason)
2014-05-19 15:17:17 PDT (-0700)

I’m also used to seeing it more developed and with conspicuous cilia. But maybe this is just a young or stressed specimen?

(Arg, yes, P. hypotropum and P. hypoleucinum are unfortunately indistinguishable without TLC. A bit absurd. I’m forced to name all my specimens “Parmotrema hypotropum/hypoleucinum”. You are fortunate if P. hypotropum doesn’t occur in Europe!)

Oops; I misinterpreted the characters of this specimen.
By: zaca
2014-05-19 15:09:57 PDT (-0700)

You are right, as usual, in pointing the genus. I made the test on medulla and I think it fits perfectly to Parmotrema hypoleucinum, that I found sometimes before and which I remember you said to be very similar to P. hypotropum. But this specimen is a bit strange, since is is much smaller than usual, it is not white maculate as it uses to be and has no trace of cilia. Moreover, the soredia is much brighter than usual.

Created: 2014-05-19 12:11:23 PDT (-0700)
Last modified: 2014-05-28 02:23:21 PDT (-0700)
Viewed: 28 times, last viewed: 2019-07-13 04:54:14 PDT (-0700)
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