Collection location: Parque de Monsanto, Lisboa, Portugal [Click for map]
The macroscopic characters, such as: thallus grey-green, large lobes with soredia at the center and at the margins, undulating margins, points to the genus Parmotrema. To arrive at the species, I had based on the chemical reactions, which are illustrated in the last photo attached. According to the first reference P. perlatum reacts as follows: “Medulla and soralia: K+ orange-yellow, KC+ orange”. The second reference indicates “upper cortex K+ yellow, C-, KC-, P-; medulla K+ yellow turning orange, C-, KC-”. The reactions observed match those given in the second reference and, therefore, I gave the name accordingly: Parmotrema perlatum (= P. chinense).
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Created: 2010-08-29 14:56:58 PDT (-0700)
Last modified: 2010-09-04 14:36:06 PDT (-0700)
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