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image of Israel Journal of Plant Sciences

This study presents the cyanophilous lichen population of the 'Arava Valley and the Judean Desert (Israel). This population is composed of species belonging to Lichinaceae, Heppiaceae and Collemataceae. Thirty taxa are described, 13 of them are reported from Israel for the first time. Keys are provided for the identification of the genera and species. Gonohymenia collemoides and G. sodomensis are recorded as new species, though their valid publication will be given elsewhere. Three new morphotypes are described for Gonohymenia sinaica. Heppia furva Hue was found to be a synonym of Gloeoheppia turgida and a new combination—Gloeoheppia erosa (Stnr.) K. Marton is provisionally added to the genus. It is suggested that Heppiaceae is not a natural family, due to differences in apothecial ontogeny of the two genera pertaining to this family. The apothecial ontogeny of Heppia despreauxii Tuck, was studied and compared with the apothecial ontogeny of Peltula species. Heppia paulina K. Marton is described as a new species; Peltula impressula H. Magn. as a new combination. Heppia oleifera H. Magn. is reduced to synonymy with Peltula impresmla (H. Magn.) K. Marton and H. obscuratula Nyl. with P. obscurans var. deserticola (Zahlbr.) Wetm. It is suggested that four species of Psorotichia should be transferred to Porocyphus and three Heppia species to Pterygiopsis.

Affiliations: 1: Department of Botany, The George S. Wise Faculty of Life Sciences, Tel Aviv University


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