Physarum pusillum (Berk. & M.A. Curtis) G. Lister, 1911

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 : 71

143. Physarum pusillum (Berk. & M.A. Curtis) G. Lister , in Lister, Monogr. mycetozoa, ed. 2, 64 (1911)

Specimens examined. PERU. Ancash: Carhuaz, route AN-107, km 28, Pampa de Ulta, 3817 m, 9º09′17”S, 77º34′07”W, 23 May 2014, wood and bark of Polylepis sp. , Lado 23832 (MA-Fungi 95486). Huaraz, Independencia, Huaraz, Cojup ravine, route AN-139, km 17, 3825 m, 9º28′51”S, 77º26′59”W, 9 May 2018, grasses, Lado 26156 (MA-Fungi 96962). Huari, Huanchac Ecological Center, Huari, 3230 m, 9º21′57”S, 77º10′02”W, 21 May 2014, leaves of Agave americana, Lado 23706 (MA-Fungi 95373). San Marcos, route AN-111 towards Antamina mine, km 22, Antonina lagoon, 4019 m, 9º30′22”S, 77º05′06”W, 13 May 2018, leaves and stems of Perezia multiflora, Lado 26582 (MA-Fungi 97358, USM), leaves of Perezia multiflora, Lado 26588 (MA-Fungi 97365). Recuay, Catac, Pachacoto, route AN- 1251, 10 km east of Pachacoto and 4 km west of National Park entrance, 4112 m, 9º53′14”S, 77º19′53”W, 14 May 2018, inflorescence of Puya raimondii, Lado 26683 (MA-Fungi 97457), Lado 26689 (MAFungi 97463) . Apurimac: Abancay, Tamburco, Abancay , Ampay National Sanctuary , canal dam, 3124 m, 13º35′56”S, 72º52′44”W, 20 Apr 2016, inflorescence of Puya raimondii, Lado 24560 (MA-Fungi 95838), Lado 24566 (MA-Fungi 95843). Tamburco, Abancay, Ampay National Sanctuary, Angasqocha lagoon, 3271 m, 13º35′39”S, 72º52′50”W, 20 Apr 2016, canopy leaf litter (aereous), Lado 24595 (MA-Fungi 95871) . Arequipa: Arequipa, Chiguata, La Cruz del Symbral , 4243 m, 16°23′02”S, 71°18′48”W, 4 Jan 2019, on debris of Yareta, Treviño Myx 606 (HSP), Treviño Myx 609 (HSP). Caylloma, Cabanaconde, Colca Valley , Tapay viewpoint, ctra. PE-1SE, 8 km east of Cabanaconde , 3740 m, 15º36′38.4”S, 71º53′25.4”W, 9 Oct 2012, leaves and floral scape of Puya cf. densiflora, Lado 22253 (MA-Fungi 94791), Lado 22255a (MA-Fungi 94792) . Cajamarca: Cajamarca, The baths of the Inca , route PE-08B, km 191, at the junction to Marcobamba and Llacanora , 3120 m, 7º09′23.0”S, 78º25′11.7”W, 14 Apr 2013, twigs, Lado 22566 (MA-Fungi 94910), leaves of Agave sp. , Lado 22570 (MA-Fungi 94915) . Cusco: Anta, Chinchaypujio, Parccotica , Chinchipuya , Km 8,650, 3608 m, 13º34′07”S, 72º14′27”W, 17 Apr 2016, leaves of Alnus acuminata, Lado 24411a (MA-Fungi 95749), Lado 24419 (MA-Fungi 95758), Lado 24420 (MA-Fungi 95759). Chinchaypujio, Chinchaypujio, Km 28, 3475 m, 13º36′46”S, 72º13′11”W, 17 Apr 2016, twigs, Lado 24460 (MA-Fungi 95797). Canas, Layo, Abra la Raya , route PE-3S, Km 1141, 4140 m, 14º28′09”S, 71º02′36”W, 22 Apr 2016, leaves of grasses, Lado 24614 (MA-Fungi 95886). Kunturkanki, Laramaní, route to Santa Lucia from El Descanso (Km 41), Km 29,500, 4054 m, 14º38′05”S, 71º16′56”W, 22 Apr 2016, leaves and stems of Festuca orthophylla, Lado 24675 (MA-Fungi 95942, USM). Canchis, Marangani, Aguas Calientes, route PE-3S, Km 1137, 4057 m, 14º27′01”S, 71º04′36”W, 22 Apr 2016, leaves and stem of Puya sp. , Lado 24616 (MA-Fungi 95887), Lado 24618 (MA-Fungi 95889), Lado 24619 (MAFungi 95890), leaves of Puya sp. , Lado 24629 (MA-Fungi 95899) . Huancavelica: Hauytara, Pilpichaca, route PE-28A, km 208, 10 km west of Licapa , 4020 m, 13º24′18”S, 74º53′54”W, 23 Apr 2017, leaves of Puya raimondii, Lado 25104 (MA-Fungi 96292), Lado 25105 (MA-Fungi 96293), stem of Puya raimondii, Lado 25115 (MA-Fungi 96303, USM) . Junin: Huancayo, Cullhuas, route PE-3A, km 142, 3450 m, 12º11′59.6”S, 75º10′47.8”W, 24 Sep 2012, debris of Austrocylindropuntia pachypus, Lado 21772a (MA-Fungi 94536). Pucara, route PE-3SC, km 7, 7 km from Pucara, Sapallanga, 3837 m, 12º13′03”S, 75º06′59”W, 26 Apr 2017, debris of Austrocylindropuntia subulata, Lado 25361a (MA-Fungi 96523). El Tambo, route 108, km 17, 1 km southwest of Acopalca , 3790 m, 11º59′38”S, 75º06′49”W, 27 Apr 2017, leaves of Puya sp. , Lado 25389 (MA-Fungi 96548), Lado 25390 (MA-Fungi 96549) . Pasco: Daniel Alcides Carrión, Chacayan, Goyllarisquizga , route PA-102 towards Yanahuanca , km 15, 4336 m, 10º35′03”S, 76º20′35”W, 18 May 2018, stems and leaves of Perezia multiflora, Lado 27044a (MA-Fungi 97794), Lado 27045 (MA-Fungi 97796), Lado 27048 (MA-Fungi 97799), Lado 27053 (MA-Fungi 97804), Lado 27054 (MA-Fungi 97805), Lado 27055 (MAFungi 97806) .