IMBIV   05474
INSTITUTO MULTIDISCIPLINARIO DE BIOLOGIA VEGETAL
Unidad Ejecutora - UE
artículos
Título:
Fomitiporia baccharidis comb. nov., a little known species from high elevation Andean forests and its affinities within the Fomitiporia Neotropical lineages
Autor/es:
AMALFI, M; ROBLEDO G.; DECOCK, C.
Revista:
MYCOLOGICAL PROGRESS
Editorial:
SPRINGER HEIDELBERG
Referencias:
Lugar: HEIDELBERG; Año: 2014 vol. 13 p. 1075 - 1087
ISSN:
1617-416X
Resumen:
Mario Amalfi and Gerardo Robledo contributed equally to the research
and should be considered co-first authors.
In the frame of a revision of the Fomitiporia species
with pileate basidiomata in the NewWorld, several collections
originating from Andean, high elevation forests of Argentina
were found to represent a terminal clade in multilocus phylogenetic
inferences (including nuclear ribosomal partial LSU
and ITS-5.8S, partial tef1-α and RPB2 genes). These collections
also represent a singular morphotype within
Fomitiporia, characterized by mostly pileate basidiomata,
with a soft corky consistency, roughly sulcate pilei, a ?duplex?
context with a thin black line, and dextrinoid basidiospores,
averaging 5.9×5.3 μm. It also has a well-marked autecology,
occurring on shrubby trees in high elevation forests along the
Andean range. A search in the literature for a name pointed
toward Phellinus baccharidis, despite the fact that this species
was repeatedly described with non-dextrinoid basidiospores.
Examination of the type of P. baccharidis confirmed the main
morphological features as previously described, but for the
reaction of basidiospores in Melzer?s reagent, which was
found to be strongly positive (dextrinoid), and an overall
similarity with our own specimens; hence, the new combination
Fomitiporia baccharidis is proposed. The species is
redescribed and illustrated. It is so far known from
Argentina and Ecuador. Its phylogenetic relationships with
the South American Fomitiporia are briefly discussed.