Arcyria afroalpina Rammeloo, Bull. Jard. Bot. Belg.

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 : 9

3. Arcyria afroalpina Rammeloo, Bull. Jard. Bot. Belg. 51(1/2): 229 (1981)

Specimens examined. PERU. Ancash: Recuay, crossing the Cahuish tunnel, route AN- 110, 32 km southeast of Chavín , 4473 m, 9º41′21”S, 77º15′19”W, 22 May 2014, plant debris, Lado 23756 (MA-Fungi 95410). Recuay, route AN-110, km 25, 42 km southeast of Chavín , 4060 m, 9º42′29”S, 77º17′48”W, leaves of Calamagrostis sp. , Lado 23759 (MA-Fungi 95413) . Arequipa: Arequipa, Yura, Sumbay , Cañahuas , route PE-1SE, km 9, 4230 m, 15º59′13.2”S, 71º23′04.9”W, 9 Oct 2012, leaf litter of Baccharis tricuneata, Lado 22279 (MA-Fungi 94814), Lado 22280b (MAFungi 94816), Lado 22282 (MA-Fungi 94819). Chiguata, route PE-34C, 31 km east of Chiguata , 4075 m, 16º23′18.1”S, 71º18′59.9”W, 10 Oct 2012, branch of Senecio sp. , Lado 22287 (MA-Fungi 94822), Lado 22290 (MA-Fungi 94824), Lado 22292 (MA-Fungi 94825) . Huancavelica: Huaytara, Pilpichaca, route PE-28A, km 208, 10 km west of Licapa , 4020 m, 13º24′18”S, 74º53′54”W, 23 Apr 2017, Puya raimondii litter, (mc, 30 Dec 2017, pH 7.1), dwb 3843 . Moquegua: Mariscal Nieto, Torata, Pontón Cuellar , route PE-34D, km 69, 3815 m, 16º59′54.8”S, 70º41′54.7”W, 7 Oct 2012, twigs and leaf litter of Baccharis glutinosa, Lado 22167a (MA-Fungi 94710), Lado 22168a (MA-Fungi 94712), Lado 22169d (MA-Fungi 94717), Lado 22170c (MA-Fungi 94719), Lado 22171b (MA-Fungi 94720), Lado 22172e (MA-Fungi 94725, USM), Lado 22173b (MA-Fungi 94727) . Puno: Lampa, Santa Lucía, Lagunillas , Puente Cañuma , route PE-34A, km 208, 4190 m, 15º41′36.3”S, 70º48′50.3”W, 7 Oct 2012, twigs of Parastrephia phylicaeformis, Lado 22236 (MA-Fungi 94777), Lado 22239 (MA-Fungi 94781). San Román, Cabanilla, route PE-34A, km 253, 15 km east of Santa Lucía , 3950 m, 15º39′55.2”S, 70º28′43.0”W, 8 Oct 2012, leaves of Stipa ichu, Lado 22217 (MA-Fungi 94762) .

Notes. We expand the lower range of the total sporophore height of the species since most Peruvian specimens barely reach 0.6 mm high. Besides, spores in collections Lado 23756 and 23759 are smaller in diameter, 8–9 µm, instead of the 9–13 µm originally described by ( Rammeloo 1981).