Descripción: |
Picture taken on the 7th April 2007 at the nearby of Targasonne, Alta Cerdanya, Oriental Pyrenees, France, Catalonia, on granite, hard rock, at the soil level,exposed, 1.650 m. altitude, with Melanelia stygia, upper left angle.
It is a common lichen in upland zones with granite boulders, but it has not been mentioned yet in Catalonia. It does not appear in the Biodiversity Base. Mentioned from other places in Spain, and from a similar habitat:
G. Aragon, A. García and R. López (2006) Aportación al conocimiento de los líquenes rupículas que colonizan las pedrizas del Parque Nacional de Cabañeros. Botanica Complutensis 30:53-59.
Good illustrations in Dobson's book and Nimis and Martellos in Italic Information System on Italian Lichens. Good drowing in Pascale Tiévant book, Guide des Lichens, Delachaux et Niestlé.
Crustose lichen, siliceous, thallus light grey, with yellowish ting in certain places, areolate, black prothallus very evident in certain places (see the black areas in the photo), lecanorine apothecia relativelly big up to 1 mm in diameter, black disc.
K+ yellow, C+ red, P+ yellow
Medulla I-
Armand Tomás Vidal
Nikon Coolpix 4.500
Autoeye, PH and HTLM Editor. |