149. º Physarum squamosum Flatau & Schirmer, Z. Mykol. 70(2): 187 (2004)

Specimens examined. PERU. Ancash: Asunción, Chacas, Huascaran N.P., Punta Olímpica, 4874 m, 9º08′04.3”S, 77º30′38.4”W, 21 Apr 2013, livingand dead plant of Xenophyllum dactylophyllum, Lado 22965 (MA-Fungi 95144). Chacas, Acochaca, route AN-107, km 60, 4039 m, 9º08′48”S, 77º28′52”W, 10 May 2018, leaves and bark of Polylepis sp., Lado 26257 (MA-Fungi 97059). Huaraz, Cajamarquilla, 4233 m, 9º40′24.5”S, 77º41′46.0”W, 22 Apr 2013, leaves of Puya raimondii, Lado 23077 (MA-Fungi 95240) .

Notes. With iridescent peridium alternated with thick calcareous scales, more noticeable in the upper part (Fig. 4D). Similar to Ph. australiense S.L. Stephenson, Novozh. & Prikhodko, distinguishable by the calcareous columella, but the two species could be conspecific regarding the remaining morphological traits.