Par Lechat C., Fournier J.
Vol. 8 (2) – 15 mars 2016
Résumé (anglais) : Lasionectriella rubioi gen. and sp. nov. and L. herbicola sp. nov. are described and illustrated based on collections from France and Spain. The asexual morph of L. rubioi was obtained in culture and cultures of both species were sequenced. The genus is placed in the Bionectriaceae based on ascomata not changing colour in 3% KOH or lactic acid, acremonium-like asexual morph and phylogenetic comparison of LSU sequences with species in 13 genera of the Bionectriaceae. Lasionectriella is primarily characterized by subglobose, pale yellow, pale orange to dark brownish orange, non-stromatic ascomata with a conical apex and ascomatal surface covered by thick-walled hyphae proliferating from base and agglutinating to form a fringe around the upper margin of ascomata. It is morphologically and phylogenetically compared with the most similar genera Ijuhya, Lasionectria and Ochronectria