Urnula rhytidia (Berk.) Cooke, un raro discomicete (Pezizales, Ascomycotina), hallado en las Villuercas (Cáceres)

Urnula rhytidia, a rare Discomycete (Pezizales, Ascomycotina), collected in Las Villuercas (Caceres, W Spain). A rare ascomycete, Urnula rhy tidia, typically (but not always) associated with Eucalyptus litter, is thoroughly described, illustrated and discussed; its distribution, which is here summarised, is confined to isolated areas in different countries. The latter was reported in Spain once again. The authors afford new information to their previous taxonomic treatments, mainly enlarging the synonimic list. Finally, the curious ornamentation pattern of the spores is showed at S. E. M.Se describe, iconografia y comenta Urnula rhytidia, un raro ascomicete, generalmente (pero no siempre) ligado al humus de Eucalyptus spp ., que sólo aparece en a puntos dispersos en diferentes continentes. Se realiza una síntesis de su distribución, que ahora se amplía por segunda vez en lo que a España se refiere, y de los tratamientos taxonómicos anteriores, con especial énfasis en la lista de sinónimos. Por último, se aporta un estudio detallado al M. E. B. de la curiosa ornamentación esporal

A new corticicolous species of the genus Tubulicium (Polyporales) from southern Spain

A new Tubulicium species from Mediterranean evergreen forests of southern Spain is described, viz. Tubulicium papillatosporum G. Moreno & Esteve-Rav. It is characterized by its papillate basidiospores and habitat on bark of living Quercus canariensis. A bibliographical revision of this genus is presented, and the new combination Tubulicium macrosporum is proposed.Consejería de Medio Ambiente, Junta de Andalucí

Urnula rhytidia (Berk.) Cooke, un raro discomicete (Pezizales, Ascomycotina), hallado en las Villuercas (Cáceres)

Urnula rhytidia, a rare Discomycete (Pezizales, Ascomycotina), collected in Las Villuercas (Caceres, W Spain). A rare ascomycete, Urnula rhy tidia, typically (but not always) associated with Eucalyptus litter, is thoroughly described, illustrated and discussed; its distribution, which is here summarised, is confined to isolated areas in different countries. The latter was reported in Spain once again. The authors afford new information to their previous taxonomic treatments, mainly enlarging the synonimic list. Finally, the curious ornamentation pattern of the spores is showed at S. E. M.Se describe, iconografia y comenta Urnula rhytidia, un raro ascomicete, generalmente (pero no siempre) ligado al humus de Eucalyptus spp ., que sólo aparece en a puntos dispersos en diferentes continentes. Se realiza una síntesis de su distribución, que ahora se amplía por segunda vez en lo que a España se refiere, y de los tratamientos taxonómicos anteriores, con especial énfasis en la lista de sinónimos. Por último, se aporta un estudio detallado al M. E. B. de la curiosa ornamentación esporal

A new corticicolous species of the genus Tubulicium (Polyporales) from southern Spain

A new Tubulicium species from Mediterranean evergreen forests of southern Spain is described, viz. Tubulicium papillatosporum G. Moreno & Esteve-Rav. It is characterized by its papillate basidiospores and habitat on bark of living Quercus canariensis. A bibliographical revision of this genus is presented, and the new combination Tubulicium macrosporum is proposed.Consejería de Medio Ambiente, Junta de Andalucí

Gymnopus Beltraniae, a new species of section Vestipedes (Agaricales) from the Canary Islands (Spain)

Gymnopus beltraniae, collected on the Canary Islands in 'monteverde'forest as well as mixed monteverde /Canary pine forest, is proposed as a new species belonging to sect. Vestipedes subsect. Vestipedes. It is compared with species from North and South America considered to represent the closest taxa in its section

Gymnopus Beltraniae, a new species of section Vestipedes (Agaricales) from the Canary Islands (Spain)

Gymnopus beltraniae, collected on the Canary Islands in 'monteverde'forest as well as mixed monteverde /Canary pine forest, is proposed as a new species belonging to sect. Vestipedes subsect. Vestipedes. It is compared with species from North and South America considered to represent the closest taxa in its section

Mycena pseudopicta (J.E. Lange) Kühner, a rare graminicolous species growing on Poaceae

Mycena pseudopicta (J .E. Lange) Kühner, una rara especie graminícola creciendo sobre Poaceae. Mycena pseudopicta, una rara especie de la sección Cinerellae Singer ex Maas Geest., encontrada en España, se describe e ilustra macro y microscópicamente. Esta especie se caracteriza por sus láminas muy decurrentes, por sus queilocistidios con largas y abundantes diverticulaciones y por su hábitat sobre gramíneas en descomposición.Mycena pseudopicta (J .E. Lange) Kühner, a rare graminicolous species growing on Poaceae. Mycena pseudopicta, a rare species from section Cinerellae Singer ex Maas Geest., ocurring in Spain, is described and illustrated macro- and microscopically. It is characterized by its strongly decurrent gills, its cheilocystidia with fairly long and coarse excrescences and its graminicolous habitat

Mycena pseudopicta (J.E. Lange) Kühner, a rare graminicolous species growing on Poaceae

Mycena pseudopicta (J .E. Lange) Kühner, a rare graminicolous species growing on Poaceae. Mycena pseudopicta, a rare species from section Cinerellae Singer ex Maas Geest., ocurring in Spain, is described and illustrated macro- and microscopically. It is characterized by its strongly decurrent gills, its cheilocystidia with fairly long and coarse excrescences and its graminicolous habitat.Mycena pseudopicta (J .E. Lange) Kühner, una rara especie graminícola creciendo sobre Poaceae. Mycena pseudopicta, una rara especie de la sección Cinerellae Singer ex Maas Geest., encontrada en España, se describe e ilustra macro y microscópicamente. Esta especie se caracteriza por sus láminas muy decurrentes, por sus queilocistidios con largas y abundantes diverticulaciones y por su hábitat sobre gramíneas en descomposición

Two rare species recently described in the genus Comatricha

Dos raras especies de Comatricha de reciente descripción. Se estudian dos especies de Comatricha recientemente descritas como nuevas para la ciencia: C. Meandrispora y C. pellucida . Se aportan datos sobre su variabilidad morfológica, preferencias en su fructificación y se amplía su área de distribución penínsular. Se incluyen microfotografias de sus esporocarpos y al MEB de sus caracteres diferenciales mas importantes.Two rare recently described species of the genus Comatricha. Two species of the genus Comatricha recently described as new for the science are studied: C. Meandrispora and C. pellucida. Dates about its morphologic variability and preference regarding its fructification are given. Moreover, the area of its distribution is enlarged. Microphotographs both of sporocarps and more important differential characters under SEM are included

Two rare species recently described in the genus Comatricha

Dos raras especies de Comatricha de reciente descripción. Se estudian dos especies de Comatricha recientemente descritas como nuevas para la ciencia: C. Meandrispora y C. pellucida . Se aportan datos sobre su variabilidad morfológica, preferencias en su fructificación y se amplía su área de distribución penínsular. Se incluyen microfotografias de sus esporocarpos y al MEB de sus caracteres diferenciales mas importantes.Two rare recently described species of the genus Comatricha. Two species of the genus Comatricha recently described as new for the science are studied: C. Meandrispora and C. pellucida. Dates about its morphologic variability and preference regarding its fructification are given. Moreover, the area of its distribution is enlarged. Microphotographs both of sporocarps and more important differential characters under SEM are included