Observation 207152: Lichen P. Micheli

When: 2015-06-16

Collection location: Shambeau Park, Waupaca, Wisconsin, USA [Click for map]

Who: Andrew Khitsun (Andrew)

Specimen available


Proposed Names

29% (1)
Recognized by sight

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Yes of course apothecia are the same, but appear different
By: Andrew Khitsun (Andrew)
2015-06-20 16:52:27 PDT (-0700)

The ones in the center are being swallowed and don’t look round anymore. If I encountered such morphology on two neighboring thallii, I’d think I have two different species.

By: Jason Hollinger (jason)
2015-06-20 16:35:40 PDT (-0700)

It’s like the thallus just keeps growing, finally overgrowing its own apothecia.

On granite.
By: Andrew Khitsun (Andrew)
2015-06-20 16:08:47 PDT (-0700)

Of interest are different types of apothecia – the ones in the center are quite distinct from the ones towards the edges.
While not 100% sure, by examining specimens in situ it seems that algae-populated circles are leftovers of thalli of the same lichen.