Flavoparmelia baltimorensis, Parmotrema yodae and Xanthoparmelia braziliensis, new to Argentina and extension of distributions for other Parmeliaceae (Lichenized Ascomycota)

Flavoparmelia baltimorensis (Gyeln. & Fóriss) Hale, Parmotrema yodae (Kurok.) Hale and Xanthoparmelia braziliensis Nash & Elix se citan por primera vez como parte de la micota liquenizada de Argentina, coleccionadas en provincias del noroeste y centro-oeste. Asimismo, se presentan nuevos datos de distribución para provincias de Argentina de doce especies de Parmeliaceae (Ascomycota liquenizados). Las especies corresponden a los géneros que se enumeran a continuación, indicando entre paréntesis el número de especies tratadas para cada uno: Everniastrum Hale ex Sipman (1), Flavoparmelia Hale (1), Hypotrachyna (Vain.) Hale (1), Parmotrema Mass. (4), Punctelia Krog (4). Se describen brevemente las 14 especies, se incluyen sus distribuciones geográficas al nivel mundial y dentro del país, y se las categoriza biogeográficamente.Flavoparmelia baltimorensis (Gyeln. & Fóriss) Hale, Parmotrema yodae (Kurok.) Hale and Xanthoparmelia braziliensis Nash & Elix, are reported for the first time for Argentina, which were collected in north-western and central- western provinces. In addition, new distribution reports from Argentine provinces for twelve species in the Parmeliaceae (Lichenized Ascomycota) are given. They correspond to the following enumerated genera, indicating in brackets the number of species treated for each one: Everniastrum Hale ex Sipman (1), Flavoparmelia Hale (1), Hypotrachyna (Vain.) Hale (1), Parmotrema Mass. (4), Punctelia Krog (4). The 14 species are briefly described and categorized with respect to their world geographic distribution. The distributions inside Argentina are also given for each species.Fil: Adler, Monica Teresa. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Micología y Botánica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Micología y Botánica; ArgentinaFil: Calvelo, Susana. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche; Argentin

Parmeliaceae S.Lat., (Ascomycetes liquenizados), foliosos de los bosques andino-patagónicos y de Tierra del Fuego : estudios taxonómicos-florísticos

The present study is the first review of the foliose Parmeliaceae s. lat. lichens from andean and subandean Patagonia and Tierra del Fuego (southern South-America, 37° to 55° S). It covers habitats of Nothofagus forests included in the Subantarctic Province (Antarctic Region) and the shrubby and graminean steppe of the Altoandinean and Patagonic Provinces (Neotropical Region). Six maps of the area are included. The work is based on the study of ca. 500 specimens collected by the author and herbarium collections from ASU, BAFC, BCRU, BM, BP, CHR, CTES, H, LIL, MB, MERL, SI, UPS. All collections have been studied in their morphology, anatomy and Chemistry, including TLC. The delimitation of Parmeliaceae s. lat. is discussed and a diagnosis is given. Forty seven species and two subspecies, included in nineteen different genus are reported. Each genera is characterized and a key to identify the genera is presented, as well as a key to identify species within each genus. Morphological, anatomical and chemical features of each species are given. When new features are decribed, they are illustrated. Taxonomic affinities, ecological behavior and intraspecific variability are discussed. The distribution of each taxa is given. The different habitats and species are illustrated by 92 photographs. Sixteen species are reported for the first time from Argentina, among which one for the first time for the Southern Hemisphere, three for southern-South America and three for the first time outside Australasia. Several synonymies are discussed. Chemical data on Menegazzia species from southern South America are presented for the first time and some collections are considered as possible new species. Biogeographically it was found that only three species are common to the centrally located Buenos Aires Province (Argentina), while two genera, twenty species belonging to twelve genera and three subspecies are shared with Australasia. This data are a further evidence of the resemblance of the cool temperate Nothofagus forests of circumantarctic territories, formerly belonging to Gondwanaland. The work is considered a contribution to the biodiversity of the area, due to the new taxa reported as well as for the intraspecific variability described. It is also considered as a good base to start researches on the use of lichens as bioindicators, as done recently through the evaluation of elemental composition of some Parmeliaceae lichens.Fil:Calvelo, Susana. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina

Pannaria byssoidea (Pannariaceae), a new squamulose species from Southern South America

The present contribution is part of an extensive revision of Pannariaceae in southern South America Nothofagus forests. Pannaria byssoidea is described as new to science from this area. The morphology, anatomy and chemistry of collections, including type specimens from Argentina, Chile and New Zealand were studied. The specimens from southern South America differ from those from New Zealand, and are here accommodated in a new species, P. byssoidea. The new species differs from P. implexa mainly in two characters: spore anatomy and medullary substance. The South American P. byssoidea is characterized by an orbicular squamulose thallus, surrounded by a thick byssoid prothallus, ellipsoid to subglobose ascospores, with roughened perispore, and the presence of leprolomin as medullary substance. Pannaria implexa is considered endemic to New Zealand, and is characterized by the ellipsoid ascospores, with a halonate perispore, and the presence of pannarin as medullary substance. Both species are illustrated and notes on their taxonomy, distribution and ecology are given.Fil: Passo, Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; ArgentinaFil: Calvelo, Susana. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche; Argentin

Ampliación de las distribuciones de especies de Parmeliaceae (Ascomycota Liquenizados) en la República Argentina Extension of the known distribution of species in the Parmeliaceae (Lichenized Ascomycota) inside Argentina

Se extiende la distribución geográfica dentro del país de 18 especies de la familia Parmeliaceae pertenecientes a la flora liquénica de la República Argentina. Las especies se describen brevemente. Se incluyen las distribuciones geográficas mundial y dentro del país de cada una. Las especies corresponden a los géneros que se enumeran a continuación, indicando entre paréntesis el número de especies que se tratan en cada uno: Everniastrum Hale ex Sipman (1), Flavoparmelia Hale (1), Hypotrachyna (Vain.) Hale (4), Melanelia Essl. (2), Parmelia Ach. (3), Punctelia Krog (1), Xanthoparmelia (Vain.) Hale (4) and Parmotrema Mass. (2).<br>Eighteen species in the family Parmeliaceae belonging to the Argentine lichen flora are described briefly. Their world geographic distributions are given as well as their distributions inside the country. New reports from Argentine provinces, for each of the described species are also informed. They correspond to the following enumerated genera, indicating in brackets the number of species treated for each one: Everniastrum Hale ex Sipman (1), Flavoparmelia Hale (1), Hypotrachyna (Vain.) Hale (4), Melanelia Essl. (2), Parmelia Ach. (3), Punctelia Krog (1), Xanthoparmelia (Vain.) Hale (4) and Parmotrema Mass. (2)

Flavoparmelia amplexa and F. springtonesis (Parmeliaceae) new to the Americas and additions to the lichen flora of Argentina

The world distribution of nine species of the Parmeliaceae is presented including new localities in Argentina. Flavoparmelia amplexa (Stirt.) Hale, formerly known exclusively from Africa, is cited for the first time for the American continent, and is therefore categorized as a South American-African species, whereas F. springtonensis (Elix) Hale, until now known as an Australasian endemic, is reported for the first time for America as well and consequently categorized as a South American-Australasian species. World distribution maps of each species are included.Fil: Adler, Monica Teresa. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Micología y Botánica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Micología y Botánica; ArgentinaFil: Calvelo, Susana. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche; Argentin

The distinction between Menegazzia cincinnata and M.valdiviensis (Parmeliaceae)

The aim of the present investigation is to assess the status of Menegazzia cincinnata and Menegazzia valdiviensis, two closely related species from southern South America. The main characters used previously to segregate the two species are discussed an

Protousnea Fibrillatae Sp. Nov. (Parmeliaceae, Lichenized Ascomycota) from Argentina, Southern South America

Protousnea fibrillatae from south-western Argentinean Nothofagus forests, is described as new to science. While the apothecia are typical of Protousnea, this new species is characterized by the presence of fibrils, a character previously unknown in the genus. The meta-depsides, subsekikaic and 4′-O-demethylsekikaic acids are reported the first time for Protousnea

Protousnea (Parmeliaceae), a Genus Endemic to Southern South America

A comprehensive revision of the genus Protousnea is presented based on morphological, chemical, anatomical, and extensive field studies in the Patagonian Andes and Tierra del Fuego, as well as by comparisons with herbarium material. A complete chemical profile is detailed for each species and sekikaic acid has been shown to be the major medullary metabolite. The new despide, 4′-O-demethylsubsekikaic acid, is described for the first time. The circumscription of species and intraspecific variability is discussed with reference to key morphological, anatomical, and chemical characters, as well as ecological preferences. Conidia are described for the first time. Protousnea malacea and P. scrobiculata have been synonymized with P. poeppigii. A key to the species is given. All the species are illustrated and new data are presented on their distribution, substrate preferences, and ecology