Hymenochaetales » Hymenochaetaceae » Neomensularia

Neomensularia duplicata

Neomensularia duplicata F. Wu, L.W. Zhou & Y.C. Dai 2016, in Wu et al., Mycologia, 108(5), 891-898 (2016)

Etymology: Duplicata (L.): referring to the duplex context of the species

Diagnosis: Basidiocarps annual, pileate, usually imbricate, corky and without odor or taste when fresh, hard corky and brittle when dry. Pilei dimidiate to fan-shaped, projecting up to 2 cm, 4 cm wide, and 5 mm thick at base. Pileal surface dark reddish brown, margin buff yellow when fresh, becoming fawn to fuscous upon drying, with distinctly concentric zones in different shades, tomentose to velutinate; margin acute, slightly convex when dry. Pore surface cinnamon-buff to honey-yellow when fresh, becoming dark brown to fuscous upon drying; sterile margin distinct, yellowish brown, up to 1 mm wide; pores circular, 810 per mm; dissepiments thick, entire to slightly lacerate. Context dark brown, up to 2 mm thick, duplex, toward the tomentum separated by one black line, lower context hard corky, upper context soft corky. Tubes yellowish brown, distinctly paler than pores and context, up to 3 mm long. Hyphal system dimitic; generative hyphae with simple septa; all hyphae IKI, CB; tissue darkening, otherwise unchanged in KOH. Generative hyphae in the lower context hyaline to pale yellowish, thin- to thick-walled, frequently simple septate, occasionally branched, 34 µm diam; skeletal hyphae yellowish to golden brown, thick-walled with a narrow to wide lumen, unbranched, interwoven, 35 µm diam; hyphae in the black line dark brown, distinctly thick-walled with a narrow lumen, flexuous, strongly agglutinated, 35 µm diam.; hyphae in the upper tomentum golden yellow, thick-walled with a wide lumen, unbranched, occasionally simple septate, 34.5 µm diam. Hymenophore trama: generative hyphae hyaline to pale yellowish, thin- to slightly thick-walled, frequently simple septate, occasionally branched, 23 mm diam; skeletal hyphae dominant, golden yellow to yellowish brown, thick-walled with a narrow lumen, unbranched, non-septate, straight, parallel along the tubes, 2.53.5 µm diam. Hymenium: Setae infrequent, subulate to ventricose with a distinct hooked tip, arising from subhymenium, mostly embedded in hymenium, dark brown, thick-walled, 3040 × 1115 µm; cystidia absent, fusoid cystidioles occasionally present; basidia more or less barrel shaped, with four sterigmata and a simple septum at the base, 7.511 × 45 µm; basidioles in shape similar to basidia, but slightly smaller. Basidiospores ellipsoid, golden yellow, thick-walled, smooth, IKI, CB, (3–)3.54(–4.5) × 2.53(–3.5) µm, L= 3.82 µm, W= 2.9 µm, Q =1.311.33 (n = 60/2).

Index Fungorum Number: IF815646