Baral H.O.
Vol. 16 (5) – 13 December 2024
doi: 10.25664/art-0405
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Abstract: The new genus Phragmocalloria is proposed for Coryne faberi and two newly described species, P. brevispora and P. septemseptata. Phragmocalloria resembles Calloria s.str. in having sessile, yellow-orange, drought-tolerant apothecia and inamyloid asci, but differs in growing on woody substrates, asci with hemispherical, permanently thin-walled apices, and ascospores with 3‒7 septa prior to discharge. Morphologically, Phragmocalloria resembles the genus Calloria, to which J. Kunze in sched. tentatively placed his collection, which Rehm later published as Coryne faberi. Authentic material of C. faberi could not be located, but the protologue and the habitat leave no doubt about its identity. C. faberi was originally described from two different collection sites on two different hosts (Malus bark in Sachsen-Anhalt, Rubus canes in Unterfranken) and no illustration was provided by Rehm which could have served as lectotype. Therefore, a recent collection on Malus bark from Tübingen is proposed as neotype of C. faberi. According to ITS and LSU rDNA generated from the apothecia of the neotype, Phragmocalloria stands phylogenetically distant from Calloria and any other genera of Helotiales, supporting recognition as a genus of its own and rendering its taxonomic relationship within the order unresolved.
During a one month stay of my family at the University of Alcalá de Henares (Spain) in spring 1996, several excursions were undertaken with Ricardo Galán (University of Alcalá de Henares) in the (sub)mediterranean surroundings of the Sierra de Guadarrama. At this occasion, totally seven collections belonging to apparently three different species were made on xeric wood and bark of different angiosperms. Their apothecia resembled members of Calloria Fr., but the species […]