Ptychostomum warneum (Röhl.) J.R.Spence

Aleffi, Michele, Tacchi, Roberta & Poponessi, Silvia, 2020, New Checklist of the Bryophytes of Italy, Cryptogamie, Bryologie 20 (13), pp. 147-195 : 158

Ptychostomum warneum (Röhl.) J.R.Spence

Only reported on moist sandlands, close to the permanent snow cover of the Azzarini and Pisgana mountains (De Notaris 1869). However, in the absence of any herbarium specimen, the taxonomic identification is unreliable by reference to the previously mentioned site conditions, which do not match the ecological preferences of this species. The report of its occurrence at Solda in TRA by Nicholson (1909) (sub B. mamillatum ) is to be disregarded, as the revision of the herbarium specimen [BM] revealed that it was erroneously identified. This species should be excluded from the flora of the Italy.