Wrightoporia subavellanea Jia J. Chen & B. K. Cui 2014, sp. nov.
Creators: name: Chen, Jia-Jia
name: Cui, Bao-Kai
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Fungi
Basidiomycota
Agaricomycetes
Russulales
Bondarzewiaceae
Wrightoporia
Wrightoporia subavellanea

description: Wrightoporia subavellanea Jia J. Chen & B.K. Cui, sp. nov. (Figs. 1–2)   
MycoBank no.: MB 808216  
 Differs from other Wrightoporia species by annual and resupinate basidiocarps with white rhizomorphs, large pores, narrow and strongly dextrinoid skeletal hyphae, broadly ellipsoid to subglobose and strongly amyloid basidiospores, and slightly thick-walled gloeoplerous hyphae in trama.   
 Type.— CHINA. Guangxi Autonomous Region: Nanning, Qingxiushan Park, alt. 150 m, on rotten wood of Pinus, 9 November 2009, Dai 11484 (holotype, BJFC!).   
 Etymology.— subavellanea (Lat.) referring to the species is somewhat similar to Wrightoporia avellanea (Bres.) Pouzar.   
 Basidiocarps. —Annual, resupinate, soft when fresh, membranous when dry; up to 13 cm long, 5.5 cm wide, and 4 mm thick at the center; pore surface cream to cream buff when fresh, cream to straw-yellow upon drying; margin with white rhizomorphs; pores circular to irregular, 2–3 per mm; dissepiments thin, entire to slightly lacerate with age; subiculum white to cream, cottony, very thin, about 0.2 mm thick; tubes concolorous with pore surface, membranous, up to 3.8 mm thick.   
 Hyphal structure.— Hyphal system dimitic; generative hyphae with clamp connections; skeletal hyphae strongly dextrinoid, CB +; tissues becoming brown to dark brown permanently in KOH.   
 Subiculum. —Generative hyphae infrequent, hyaline, thin-walled, occasionally branched, 1.5–2.8 µm in diam; skeletal hyphae dominant, hyaline to yellowish, thick-walled with a narrow lumen, rarely branched, flexuous, interwoven, 1–2.3 µm in diam.   
 Tubes. —Generative hyphae infrequent, hyaline, thin-walled, frequently branched, 1.3–2 µm in diam; skeletal hyphae dominant, hyaline to yellowish, thick-walled with a narrow lumen to almost solid, unbranched, often flexuous, interwoven, 0.8–1.5 µm in diam; gloeoplerous hyphae infrequent, slightly thick-walled with granular to oily contents appearing refractive in phase contrast illumination, up to 11 µm in diam, embedded in trama; cystidia absent, but cystidioles present, thin-walled, fusoid, tapering, 13–17 × 2.5–3.5 µm; basidia clavate to barrel-shaped, bearing four sterigmata and a basal clamp connection, 12–20 × 4–5 µm; basidioles in shape similar to basidia, but distinctly smaller.   
 Spores.— Basidiospores broadly ellipsoid to subglobose, hyaline, thick-walled, finely asperulate, strongly amyloid, CB +, (3.6–)3.8–4.2(–4.7) × (2.6–)2.8–3.2(–3.7) µm, L = 4.1 µm, W = 3.7 µm, Q = 1.31 (n = 60/2).   
 Additional specimens examined.— CHINA. Hainan Prov.: Changjiang County, Bawangling Nat. Res., alt. 800 m, on rotten trunk of Pinus, 10 May 2009, Dai 10826 (paratype, BJFC!). Guangxi Autonomous Region: Nanning, Qingxiushan Park, alt. 150 m, on rotten wood of Pinus, 9 November 2009, Dai 11484 & 11492 (paratypes, BJFC!).
description: Published as part of Chen, Jia-Jia & Cui, Bao-Kai, 2014, Studies on Wrightoporia from China 3. Wrightoporia subavellanea sp. nov. based on morphological characters and rDNA sequence data, pp. 225-234 in Phytotaxa 175 (4) on pages 226-228, DOI: 10.11646/phytotaxa.175.4.4, http://zenodo.org/record/5143927