Sidera srilankensis Y.C. Dai, F. Wu, G.M. Gates & Rui Du, 2020
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publication ID |
https://dx.doi.org/10.3897/mycokeys.68.53561 |
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persistent identifier |
https://treatment.plazi.org/id/C357DB53-95E3-50E6-9EDF-0B40F13E3DF2 |
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treatment provided by |
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scientific name |
Sidera srilankensis Y.C. Dai, F. Wu, G.M. Gates & Rui Du |
| status |
sp. nov. |
Sidera srilankensis Y.C. Dai, F. Wu, G.M. Gates & Rui Du sp. nov. Figures 8 View Figure 8 , 9 View Figure 9
Type material.
Holotype: Sri Lanka. Western Province, Mitirigala Nissarana, Vanaya Forest, on rotten angiosperm wood, 4 Mar 2019, Y.C. Dai 19654 (BJFC, isotype in University of Ruhuha).
Etymology.
Srilankensis (Lat.), refers to the species being found in Sri Lanka.
Description.
Basidiomata: Annual, resupinate, soft when fresh, soft corky to fragile when dry, up to 16.5 cm long, 3 cm wide, and approximately 1 mm thick at center; pore surface cream when fresh, becoming buff yellow upon drying; sterile margin distinct, fimbriate, thinning out; pores round, 6-8 per mm; dissepiments thin, lacerate; subiculum very thin to almost absent; tubes concolorous with poroid surface, up to 1 mm long.
Hyphal structure: Hyphal system dimitic, generative hyphae bearing clamp connections; skeletal hyphae dominant, unbranched, interwoven, 1.5-3 µm diam; all hyphae IKI-, CB-, unchanged in KOH.
Subiculum : Generative hyphae hyaline, thin-walled, frequently branched, 1-2 µm in diam; skeletal hyphae dominant, more or less straight, unbranched, interwoven, 1.5-3 μm diam; rosette-like crystals frequently present, 3.5-12 µm in diam, some irregular rhomboidal crystals present.
Tubes: Generative hyphae hyaline, thin-walled, frequently branched, 1-2 µm in diam; skeletal hyphae with a narrow lumen to subsolid, unbranched, interwoven, 1.5-3 µm diam; skeletal hyphae and generative hyphae co-dominating at dissepiment edges; rosette-like and irregular rhomboidal crystals abundant; cystidia absent; cystidioles present, fusoid, hyaline, thin-walled, basally swollen, with a sharp or often hyphoid neck, 8.1-14 × 3-4.1 μm; basidia barrel-shaped, hyaline, bearing four sterigmata and a basal clamp connection, 7.8-13.2 × 3.6-4.5 μm; basidioles in shape similar to basidia, but slightly shorter.
Basidiospores: Lunate, hyaline, thin-walled, smooth, occasionally with one or two guttules, IKI-, CB-, (3.4-)3.5-4(-4.1) × 1-1.3(-1.4) μm, L = 3.83 μm, W = 1.16 μm, Q = 3.28-2.34 (n = 60/2).
Additional specimen examined (paratype).
Sri Lanka. Kandy, Udawatta Kele, Royal Forest Park, on rotten angiosperm wood, 2 Mar 2019, Y.C. Dai 19581 (BJFC).
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