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Correspondence to Author: Nizini, Konizlio Ru, Zhetti and Jurat Pk 

Dipartimento di Biologia Vegetale - Università degli Studi di Torino,Italy.

Keywords:Agaricomycetes – Amanitaceae – Pluteaceae – bilateral gill trama – taxonomy.

Introduction: Kinia priver-nensis is the typical species of Kinia Consiglio, Contu, Setti & Vizzini (Consiglio et al., 2008), a recently discovered monospecific genus. The species is distinguished by a distinct set of features that includes a tricholomatoid habit, ornamented, non-amyloid spores, long, hygrophoroid, siderophilous basidia with micro-type granulations (refer to Clémençon 1978, 2004), bilateral gill tracta, and the absence of clamp-connections in the hyphae of the entire basidioma as well as well-differentiated cystidia. The taxon is unmistakably a member of the extinct Tricholomataceae sensu R. Heim ex Pouzar, but it does not meet the description of any of the genera that are currently recognized in the Agaricales, and its familial relationships are still somewhat unclear based only on micromorphological evidence. The siderophilous basidia, angular-verrucose spores, and Kinia privernensis shares characteristics with the genus Gerhardtia Bon (Bon 1994, 1999; Contu & Consiglio 2004), a member of the Lyophyllaceae (Kühner) Jülich (Frøslev et al. 2003, Saar et al. 2009) in that it lacks clamp connections. It is differentiated by its non-divergent gill trama and shorter collybioid basidia. Clearly amyloid spore warts are seen in other species, such as Melanoleuca Pat. and Lyophyllopsis Sathe & Daniel (Singer 1986), which exhibit decorated basidiospores without clamps and somewhat siderophilous basidia. Some genera, such as Amanitaceae R. Heim ex Pouzar, Pluteaceae Kotl. & Pouzar, and Hygrophorus Fr. in the Hygrophoraceae Lotsy, have distinct hymenophoral tramas and are well-characterized, distinct from Kinia (Singer 1986, Reijnders & Stalpers 1992). The current paper’s goal was to use molecular approaches to examine the evolutionary relationships of Kinia within the Agaricales.

Citation:

Konizlio Ru. A recent addition to the Pluteoid clade, which is subordinate to Melanoleuca, is the agaricoid genus Kinia. The Journal of Fungi 2024.