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Project Noah Nature School
Umbilicaria cylindrica
Foliose lichen. The thallus is attached at central point, and is divided into multiple lobes.The colour is grey to brownish-grey above, lacking isidia. The lower surface is pale brown, with variable complement of often flattened, pale rhizinomorphs (non-attaching rhizines). The margins are lobular with variable development of fringing, grey-brown cilia. Apothecia are black, somewhat raised, discs with multiply infolded margins (gyrose).
On a granite rock. At the mountains, 1500 meters high. Parque Nacional Sierra de Guadarrama
Camera Model: NIKON D300. Exposure Time: 1/60 sec.; f/32; ISO Speed Rating: 800. Focal Length: 90.0 mm. Flash fired
Spotted on Jun 5, 2013
Submitted on Sep 23, 2013
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