NEW DATA ABOUT THE GENERA CETRARIOPSIS, CETRELIOPSIS AND NEPHROMOPSIS(FAM. PARMELIACEAE, LICHENIZED ASCOMYCOTINA)

New morphological, anatomical and chemical data about the lichen gener a Cetrariopsis, Cetreliopsis and Nephromopsis are presented. Two new s pecies, Cetrariopsis laii Thell Br Randl., Cetreliopsis papuae Randl. and Saag, and one new subspecies Cetreliopsis rhytidocarpa subsp. lang tangi Randl. and Tell, are described and the following new combination s proposed: Cetrariopsis pallescens (Schaerer) Randl. and Thell, Cetra riopsis pallescens var. citrina (Taylor) Thell and Randl., Cetreliopsi s asahinae (Sate) Randl. and Thell, Cetreliopsis endoxanthoides (Awast hi) Randl. and Saag and Cetreliopsis laeteflava (Zahlbr.) Randl. and S aag. Cetrariopsis comprises now two, Cetreliopsis five and Nephromopsi s nine species. All the three genera, distributed in East and Southeas t Asia, are characterized by the dorsiventral foliose thallus, presenc e of pseudocyphellae on the lower surface, clavate asci usually with a rather large axial body in the tholus, oblong or ellipsoid ascospores and usnic acid as the cortical substance.