taxonID	type	description	language	source
156E87EE9800FFDDFF4364C58684FCA1.taxon	etymology	Etymology: — cystidiatus (Latin), with cystidia; refers to the presence of pleurocystidia in this species. Diagnosis: — Characterized by a brownish orange pileus often with a finely cracked center at maturity, a pruinose stipe with many off-white basal strigose hairs, a mild, pleasant odour, a hymenium showing pleurocystidia, and a stipitipellis with non-setuloid caulocystidia and caulocystidioid side branches. Differing from M. midnapurensis in having smaller basidiospores (7 – 10 × 4 – 5 μm), subregular lamellar trama, a hymenium with pleurocystidia, a stipitipellis lacking Siccus - type broom cells, and a distinctive nrITS sequence (MH 216042). Holotype: — INDIA. Kerala State: Malappuram District, Calicut University Botanical Garden, 23 June 2016, Shahina A. Sharafudheen SA 13 (CAL 1672). GenBank accessions: (nrITS: MH 216042; nrLSU: MH 275541) Description: — Basidiocarps small to medium-sized. Pileus 18.5 – 32 mm diam., convex when young, becoming broadly convex to plano-convex with or without a central depression; surface brownish orange (6 C 6 / OAC 652) all over when young, at maturity brown (6 E 6 / OAC 722) to brownish orange (5 C 6 / OAC 798) at the center and grayish orange (5 B 5, 5 B 4 / OAC 792) to almost brownish orange (6 C 6 / OAC 652) towards the margin; center smooth when young, but often finely cracked at maturity, translucent-striate to slightly sulcate-striate towards the margin; margin mostly decurved, occasionally upturned at maturity, crenate. Context up to 2 mm thick, soft, concolorous with the lamellae. Lamellae adnexed to adnate, up to 4.5 mm wide, pale yellow (4 A 3 / OAC 857), close; edge entire, concolorous with the sides; lamellulae in 1 ‒ 4 tiers. Stipe 48 – 68 × 1.5 – 4 mm, central, terete, hollow; surface brown (6 E 8, 7 E 7, 7 E 4 / OAC 747, OAC 699, OAC 640) all over except for the apex where it is concolorous with the lamellae, pruinose all over, more so towards the base, base with several, off-white, strigose hairs; Odour mild, pleasant. Spore print white. Basidiospores 7 – 10 × 4 – 5 (8.6 ± 0.74 × 4.51 ± 0.43) μm, Q = 1.4 – 2.25, Qm = 1.92, oblong-ellipsoid or lacrymoid, smooth, thin-walled, hyaline, inamyloid. Basidia 18.5 – 30 × 6 – 8 μm, clavate, hyaline to pale yellow, 4 - spored; sterigmata up to 3 μm long. Lamella-edge sterile with crowded cheilocystidia. Cheilocystidia 18 – 37 × 4 – 10 μm, in the form of Siccus - type broom cells, clavate, cylindrico-clavate, subcylindrical or obclavate, sometimes branched, thick-walled at the apex, gradually becoming thin-walled towards the base, hyaline or yellowish brown at the apex, hyaline towards the base; setules up to 16 μm long, subacute to obtuse, sometimes branched and septate, yellowish brown, thick-walled (<1 μm). Pleurocystidia scattered, 16 – 37 × 4 – 9 μm, mostly flexuose, rarely clavate to narrowly clavate, often apically branched, pale yellow to hyaline, thin-walled. Lamellar trama subregular; hyphae 3.5 – 22 μm wide, thinto slightly thick-walled (<0.5 μm), hyaline, dextrinoid. Pileus trama interwoven; hyphae 3.5 – 27 μm wide, thin-walled, hyaline, dextrinoid. Pileipellis hymenodermic with Siccus - type broom cells; broom cells 17 – 41.5 × 6 – 17 μm, clavate, broadly clavate, cylindrico-clavate or subcylindrical, often branched, sometimes septate, thin- to slightly thick-walled (<0.5 μm) at the apex, thin-walled towards the base, hyaline, bearing obtuse apical setules; setules yellowish brown, up to 17 μm long. Stipitipellis a cutis disrupted by solitary or bunched caulocystidia and caulocystidioid side branches; hyphae 2 – 13 μm wide, yellowish brown, but hyaline at apex, thin- to thick-walled up to 1.5 μm. Caulocystidia 27 – 65 × 4 – 8 μm, flexuose, sometimes with a mucronate apex, often branched, hyaline, thin- to thick-walled (<1 μm). Caulocystidioid side branches 7 – 43 × 4 – 8 μm, hyaline, thin- to thick-walled (<1 μm). Stipe trama dextrinoid. Clamp connections present on all hyphae. Habitat: — Growing in small groups on decaying dicot twigs. Geographical distribution range: — Known only from the type locality in Kerala State, India. Additional specimens examined: — INDIA. Kerala State: Malappuram District, Calicut University Botanical Garden, 28 July 2016, Shahina A. Sharafudheen SA 82 (CAL 1669). GenBank accessions: nrITS: MH 216191; nrLSU: MH 275542. Comments: — Non-collariate lamellae, a central, well developed, non-insititious stipe, and a pileipellis with Siccus - type broom cells place the present species in Marasmius section Globulares. The non-setuloid caulocystidia lead it to the series Atrorubentes (Antonín & Noordeloos 2010). A few members of Marasmius section Globulares series Atrorubentes such as M. midnapurensis Dutta, Pradhan & Acharya in Dutta et al. (2014: 119), M. inthanonensis Wannathes, Desjardin & Lumyong in Wannathes et al. (2009: 270), and M. araucariae Singer (1965: 333) share some characters with M. cystidiatus besides the typical sectional characters. Marasmius midnapurensis, a species recently described from India (Dutta et al. 2014), has light yellowish brown patches at the center of the pileus, larger basidiospores (10.7 – 15 × 3.5 – 4.7 μm), interwoven lamellar trama, lamellae devoid of pleurocystidia and Siccus - type broom cells in the stipitipellis.	en	Sharafudheen, Shahina A., Manimohan, Patinjareveettil (2018): A new species of Marasmius section Globulares from Kerala State, India. Phytotaxa 364 (1): 92-100, DOI: 10.11646/phytotaxa.364.1.6, URL: http://dx.doi.org/10.11646/phytotaxa.364.1.6
156E87EE9800FFDDFF4364C58684FCA1.taxon	description	Marasmius inthanonensis, a species described from Thailand (Wannathes et al. 2009), differs from M. cystidiatus in having an olive brown pileus when young then fading through brownish orange to yellowish brown with age, yellowish gray lamellae with light brown edges, a subvelutinous to hispidulous stipe, an indistinct odour, absence of pleurocystidia, broom cells with short setules (2 – 6 μm), interwoven lamellar trama and habitat on dicot leaf litter.	en	Sharafudheen, Shahina A., Manimohan, Patinjareveettil (2018): A new species of Marasmius section Globulares from Kerala State, India. Phytotaxa 364 (1): 92-100, DOI: 10.11646/phytotaxa.364.1.6, URL: http://dx.doi.org/10.11646/phytotaxa.364.1.6
156E87EE9800FFDDFF4364C58684FCA1.taxon	description	The phylogenetic tree inferred from the nrITS-based ML analysis (Fig. 2) shows the two collections of M. cystidiatus nesting within the clade representing Marasmius sect. Globulares. Within this clade, infrasectional ranks were found to be polyphyletic supporting previous works (Wannathes et al. 2009; Shay et al. 2017). However, M. cystidiatus forms a distinct lineage, sister to a cluster containing mostly members of the series Atrorubentes with 90 % ML bootstrap support.	en	Sharafudheen, Shahina A., Manimohan, Patinjareveettil (2018): A new species of Marasmius section Globulares from Kerala State, India. Phytotaxa 364 (1): 92-100, DOI: 10.11646/phytotaxa.364.1.6, URL: http://dx.doi.org/10.11646/phytotaxa.364.1.6
