Didymium xerophilum Lado, Estrada & D. Wrigley 2015
Creators: name: Treviño-Zevallos, Italo
name: García-Cunchillos, Iván
name: Basanta, Diana Wrigley De
name: Lado, Carlos
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Protozoa
Mycetozoa
Myxomycetes
Physarales
Physaraceae
Didymium
Didymium xerophilum

description: 78. Didymium xerophilum Lado, Estrada & D. Wrigley, in Wrigley de Basanta, Lado, García-Martín & Estrada-Torres, Mycologia 107(1): 161 (2015)   
 Specimens examined. PERU. Arequipa: Arequipa, Yura, Sumbay, Cañahuas, route PE-1SE, km 9, 4230 m, 15º59′13.2”S, 71º23′04.9”W, 7 Oct 2012, branches of Parastrephia lepidophylla, Lado 22276 (MA-Fungi 86890, USM), Lado 22277 (MA-Fungi 86891, USM), leaves of Stipa ichu, Lado 22283 (MA-Fungi 86892, USM). Chiguata, route PE-34C, 31 km east of Chiguata, 4053 m, 16º23′35.6”S, 71º19′07.2”W, 10 Oct 2012, branches, leaves and bark of Polylepis rugulosa, Lado 22344 (MA-Fungi 86893), Lado 22359 (MA-Fungi 86894, USM), Lado 22360 (MA-Fungi 86895, USM). Chiguata, La Cruz del Symbral, 4243 m, 16°23′02”S, 71°18′48”W, 4 Jan 2019, on debris of Yareta, Treviño Myx 601 (HSP), Treviño Myx 605 (MA-Fungi 97930, HSP), Treviño Myx 612 (HSP). Chiguata, Chotaglla, after The Symbral tunnel, 4453 m, 16°22′20”S, 71°16′56”W, 15 May 2017, on debris of Azorella compacta, Treviño Myx 68 (MA-Fungi 97920, HSP). Caylloma, San Antonio de Chuca, route PE-34A, km 157, 18 km west of Imata, 4444 m, 15º52′40.5”S, 71º08′54.9”W, 8 Oct 2012, branches and leaf litter of Parastrephia phylicaeformis, Lado 22241 (MA-Fungi 86884), Lado 22243 (MA-Fungi 86885, USM), Lado 22244 (MA-Fungi 86886, USM), Lado 22245 (MA-Fungi 86887, USM), Lado 22247 (MA-Fungi 86888, USM). Chivay, route PE-1SE, km 60, 24 km south of Chivay, 4747 m, 15º42′41.4”S, 71º36′22.1”W, 9 Oct 2012, living branches of Azorella compacta, Lado 22271 (MA-Fungi 94808, USM). Callalli, route 34E towards Samaccota, 4543 m, 15°28′29”S, 71°22′35”W, 27 May 2017, on debris of Bacharis tricuneata, Treviño Myx 94 (MA-Fungi 97925, HSP). Ayacucho: Lucanas, Abra Condorcenca, route PE-30A, km 99, 4130 m, 14º39′39.3”S, 74º18′43.1”W, 27 Sep 2012, leaf litter of Asteraceae, Lado 21888 (MAFungi 86883). Huancavelica: Huancavelica, Ascensión, route PE-26, km 91, 6 km south of Chuñaranra, 3908 m, 12º49′18”S, 75º03′58”W, 24 Apr 2017, leaves, bark and twigs of Polylepis sp., Lado 25190 (MA-Fungi 96374, USM), branches and leaf litter of Polylepis sp., Lado 25194 (MA-Fungi 96378), bark of Polylepis sp., Lado 25196 (MAFungi 96380), Lado 25197 (MA-Fungi 96381, USM), branches of Polylepis sp., Lado 25198 (MA-Fungi 96382), Lado 25199 (MA-Fungi 96383, USM), bark and branches of Polylepis sp., Lado 25200 (MA-Fungi 96384, USM), twigs, Lado 25201 (MA-Fungi 96385, USM), bark of Polylepis sp., Lado 25202 (MA-Fungi 96386), Lado 25203 (MA-Fungi 96387, USM), Lado 25204 (MA-Fungi 96388). Moquegua: Mariscal Nieto, Torata, route PE-34D, km 76, 4130 m, 16º58′45.0”S, 70º41′29.9”W, 7 Oct 2012, leaf litter of Polylepis rugulosa, Lado 22185 (MA-Fungi 94738, USM), Lado 22188 (MA-Fungi 86896, USM), bark of Polylepis rugulosa, Lado 22189 (MA-Fungi 86897, USM), Lado 22192 (MA-Fungi 86898, USM). Torata, Chillihua, route PE-34D, km 88, 4580 m, 16º54′55.9”S, 70º38′52.9”W, 7 Oct 2012, living and dead twigs, leaf litter of Parastrephia lepidophylla, Lado 22200 (MA-Fungi 94749), leaves of Festuca orthophylla, Lado 22202 (MA-Fungi 86889).   
 Notes. Similar to D. infundibuliforme, with a calcareous stalk and an invagination of the sporotheca, but differing by the taller sporocarps, 0.75– 2 mm in D. xerophilum vs. 0.2–0.6 mm in D. infundibuliforme, the true columella to which the funnel is attached, and the presence of lime in the hypothallus, that is common to several sporocarps, in D. xerophilum. Some of these collections were included in the original description of the species (Wrigley de Basanta et al. 2015), where a phylogenetic analysis separates it from related species.
description: Published as part of 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, pp. 1-92 in Phytotaxa 624 (1) on page 45, DOI: 10.11646/phytotaxa.624.1.1, http://zenodo.org/record/10150721