Diderma cingulatum Nann.

Treviño-Zevallos, Italo, García-Cunchillos, Iván, Basanta, Diana Wrigley De & Lado, Carlos, 2023, Diversity of Myxomycetes from Peru Part III: The high Andes and the altiplano, Phytotaxa 624 (1), pp. 1-92 : 21

43. Diderma cingulatum Nann. -Bremek., Proc. Kon. Ned. Akad. Wetensch., C. 71(2): 191 (1968)

Specimen examined. PERU. Huancavelica: Huancavelica, Ascensión, route PE-26, km 91, 6 km south of Chuñaranra , 3908 m, 12º49′18”S, 75º03′58”W, 24 Apr 2017, bryophytes, Lado 25191 (MA-Fungi 96375, USM), bark of Polylepis sp. , Lado 25205 (MA-Fungi 96389, USM), bark of Polylepis sp. and bryophytes, Lado 25206 (MAFungi 96390); branches and brak of Polylepis sp. , Lado 25207 (MA-Fungi 96391). Tayacaja, Acraquia, route PE-3SD, km 30, 6 km northeast of Pampas , 3608 m, 12º22′40”S, 74º54′27”W, 26 Apr 2017, leaf litter and twigs, Lado 25304 (MA-Fungi 96462), Lado 25305 (MA-Fungi 96463), leaf litter and mosses, Lado 25308 (MA-Fungi 96466, USM), bryophytes, Lado 25310 (MA-Fungi 96468), leaf litter and twigs, Lado 25311 (MA-Fungi 96469), Lado 25318 (MAFungi 96476, USM). Acraquia, route PE-3SC, km 7, 7 km from Pucara, Sapallanga, 4260 m, 12º19′53”S, 74º57′56”W, 26 Apr 2017, leaves and twigs of Baccharis sp. , Lado 25321b (MA-Fungi 96480), Lado 25322b (MA-Fungi 96482) .

Notes. This species has an anastomosed capillitium, and the spores traversed by a pale equatorial band. Similar to Diderma spumarioides (Fr. & Palmquist) Fr. , with whitish hypothallus and clustered sporophores, yet the spores, in this species, lack the equatorial band, and the capillitium is not generally anastomosed. Buyck (1988) reported that the pale band may be exceptionally absent in some specimens, and if so, the peridium appears fragmented.