LICHENS

The LICHENS Journal is an international publication, Indexed, that comes to establish a narrow scientific relationship between Universities, Botanical Gardens, Organized Private Collections, as well as professionals and students of related areas in the whole world. Next we offer a list of the areas and features in which LICHENS is interested in. Articles are published in three issues per year which constitutes a volume. All articles are arbitrated internationally in electronic media; once accepted for their publication, they are sent by electronic mail to an international title list, including titles and authors. When each volume is closed, you will have received the corresponding accrued, then it proceed to the impression in order to be sent by air mail to our subscribers. In short time, Titles, Summaries and Bibliographies are placed separately, in English languages, and a second language of the preference of the authors. so they will be available from any part of the world through the following address: http//cires.org.ve

CONTENTS

# Author Title Files
N1A01 MARCANO, Vicente; Antonio MORALES MÉNDEZ, Sari MOHALI & Ernesto PALACIOS-PRÜ MORPHOLOGICAL AND CHEMICAL OBSERVATIONS ON Peltigera vainioi GYELNIK (LICHENIZED ASCOMYCETES, PELTIGERACEAE) FROM SOUTH AMERICA
OBSERVACIONES MORFOLÓGICAS Y QUÍMICAS SOBRE Peltigera vainioi GYELNIK (ASCOMYCETES LIQUENIZADOS, PELTIGERACEAE) PROCEDENTE DE SURAMÉRICA
N1A02 CALVELO Susana & Cecilia ESTRABOU THE GENUS CETRARIASTRUM IN SOUTHERN SOUTH AMERICA AND C. billingsii AS A TAXONOMIC SYNONYM OF C. americanum
EL GENERO CETRARIASTRUM EN EL SUR DE AMÉRICA DEL SUR Y C. billingsii COMO SINÓNIMO TAXONÓMICO DE C. americanum
N1A03 MARCANO Vicente; Ernesto PALACIOS-PRÜ & Sari MOHALI SCANNING ELECTRON MICROSCOPIC STUDY OF THE LOWER SURFACE IN Rimelia cetrata (ACH.) HALE & FLETCHER (LICHENIZED ESTUDIO POR MICROSCOPÍA ELECTRÓNICA DE BARRIDO DE LA SUPERFICIE INFERIOR DE Rimelia cetrata (ACH.) HALE & FLETCHER (ASCOMICETE LIQUENIZADO) PROCEDENTE DE LOS ANDES VENEZOLANOS Y OBSERVACIONES SOBRE PÉRDIDA DE AGUA
N2A01 BUBACH, D., M.A. ARRIBÉRE, S. CALVELO*, S. RIBEIRO GUEVARA & G. ROMÁN ROSS CHARACTERIZATION OF MINOR AND TRACE ELEMENT CONTENTS OF PROTOUSNEA MAGELLANICA FROM PRISTINE AREAS OF NORTHERN PATAGONIA
CONTENIDO DE ELEMENTOS TRAZA EN PROTOUSNEA MAGELLANICA PROVENIENTES DE ÁREAS PRÍSTINAS DEL NORTE DE LA PATAGONIA
N2A02 MARCANO V.; A. MORALES MÉNDEZ & V. RODRÍGUEZ-ALCOCER OCCURRENCE OF USNIC ACID IN USNEA LAEVIS NYLANDER (LICHENIZED ASCOMYCETES) FROM THE VENEZUELAN ANDES
OCURRENCIA DE ÁCIDO ÚSNICO EN USNEA LAEVIS NYLANDER (ASCOMYCETES LIQUENIZADOS) DE LOS ANDES VENEZOLANOS