Fomitiporella coruscans

Fomitiporella coruscans (Bres.) Salvador-Montoya & Popoff 2020, in Salvador-Montoya et al., Plant systematics and evolution, 306, 1–27 (2020).

Diagnosis: Basidiomata perennial, effused, woody hard when dry, up to 1 mm thick in the specimens examined, margin distinctly sterile, pubescent and yellowish brown (5D6), pore surface grayish brown (6E3) to brownish gray (6E2), cracked when dry, pores angular to round, elongate, (6–)7–9 per mm, (100–)110–200(–220) μm diam., dissepiment entire to lacerate, (20–)30–50(–60) μm thick, subiculum less than 1 mm thick, light brown (6D7), tubes up to 2 mm long, often oblique, indistinctly stratified, brown (6E7) to grayish brown (6E3), with yellowish mycelia strands in the old tubes.

Hyphal system, dimitic, generative hyphae (2.5–)3–3.5(–4) μm diam., regularly septate, branched, thin-walled, gradually thick-walled, occasionally with few septa are observed, skeletal hyphae unbranched, thick-walled with visible lumen to almost solid, (43–)50–200(–202) μm long × (3–)3.5–5(–5.5) μm diam. (Length avg. = 123.1 μm, Width avg. = 3.9 μm), tapering to the apex where the wall is almost thin and four adventitious septa are present, setae absent, cystidioles langeniform, (7–)8–40(–48) μm long × (2–)2.5–4(–5) μm wide, hyaline, thin-walled, basidia not seen, quadrangular to rhomboid crystals abundant in the hymenium and trama of tubes, basidiospores ellipsoid, broadly ellipsoid to subglobose, with flattened side, (3–)3.5–4(–4.5) × (2–)2.5–3(–3.5) μm ( Length avg. = 4.0 μm, Width avg. = 2.9 μm), Q = 1.20–1.75 (Q avg. = 1.41), thick-walled, smooth, pale yellowish, becoming chestnut to ferruginous in KOH (KOH +), CB + , IKI−.

Index Fungorum Number: IF830784

Figure 1 Maximum likelihood (ML) tree of Fomitiporella s.s., and related natural groups, into ‘Phellinotus clade’ from dataset of 79 combined sequences (nLSU + ITS1 + 5.8S + ITS2). Bootstrap values above 60% and Bayesian posterior probability above 0.7 are shown. Thick horizontal branches are supported by bootstrap value 100% (ML) and 1.0 (BPP). VIS Virgin Island; CORI Costa Rica; BRA Brazil; IN India; CHI China; VIET Vietnam; FLO Florida; ARG Argentina; PAT Patagonia; SC Santa Catarina; FRA France; GUA Guadeloupe; CAM Cameroon; CHL Chile; PENN Pennsylvania; SIN Singapore; THAI Thailand; EHT Ethiopia; GEO Georgia

Figure 2. Maximum likelihood (ML) tree of Fomitiporella s.s., and closely related natural groups/genera, from dataset of 73 nITS sequences. Bootstrap values above 60% and Bayesian posterior probability above 0.7, besides putative entities from ABGD and PTP results, are shown. Thick horizontal branches are supported by bootstrap value 100% (ML) and 1.0 (BPP). AS Asia; NA North America; SA South America; AF Africa; CA Central America; CAR The Caribbean; OCE Oceania; BRA Brazil; CAM Cameroon; ETH Ethiopia; GUA Guadeloupe, CHI China. SAF South Africa; SIN Singapore; THAI Thailand; VIS Virgin Island; CORI Costa Rica; IND Indonesian; IN India; JP Japan; VIET Vietnam; ARG Argentina; CHL Chile; FLO Florida