Pyrofomes lagerstroemiae Jing Si & Hai J. Li, 2023
publication ID |
https://doi.org/ 10.11646/phytotaxa.583.2.7 |
DOI |
https://doi.org/10.5281/zenodo.7609336 |
persistent identifier |
https://treatment.plazi.org/id/039387A8-FFE4-636D-CED2-1151FD5783D8 |
treatment provided by |
Plazi |
scientific name |
Pyrofomes lagerstroemiae Jing Si & Hai J. Li |
status |
sp. nov. |
Pyrofomes lagerstroemiae Jing Si & Hai J. Li , sp. nov. ( Figs. 3 View FIGURE 3 , 4 View FIGURE 4 )
MycoBank no.—846805
Etymology:— Lagerstroemiae (Lat.): refers to the host tree genus Lagerstroemia .
Diagnosis:—This species notably has at first hemispherical, later triquetrous basidiomata, big pores (1–2.5 per mm), subglobose to broadly ellipsoid basidiospores (5–6.2 × 4–5.4 µm), and is gregarious on Lagerstroemia indica .
Habitat and distribution:—Gregarious on dead part of living Lagerstroemia indica trunk, at present only discovered from its type locality with three collections, mid-summer.
Type:— CHINA. Hubei Province, Yichang, Development area , Development Avenue, No. 56, 14 August 2018, Li20180814-01 (Holotype). GenBank accession numbers: ITS: OP942411 View Materials and LSU: OQ195123 About LSU .
Description:— Basidiomata perennial, at first hemispherical, later triquetrous, broadly attached, without odor or taste when fresh, hard corky upon drying. Pileus greyish brown to fuscous, concentrically sulcate, glabrous, usually covered with green algae, projecting up to 6 cm, 12 cm broad, and 9.5 cm thick at base; pileal edge blunt, cream to buff, concolorous with pore surface or slightly paler, often covered by incomplete, shallow pores. Pore surface cinnamon buff to greyish brown, pores round to angular, 1–2.5 per mm; dissepiments thin to moderate, entire. Context cinnamon buff to greyish brown, corky, zonate, up to 8 cm thick. Tubes concolorous with context, distinctly stratified, hard corky, up to 1.8 cm long.
Hyphal structure:—Hyphal system trimitic, generative hyphae with clamp connections, hyphae IKI–, CB+, tissue unchanged in KOH.
Context:—Generative hyphae infrequent, hyaline, thin-walled, branched, 2–3 µm in diam; skeletal hyphae dominant, pale yellowish brown, thick-walled with a wide to narrow lumen, rarely branched, interwoven, 2.3–4 µm in diam; binding hyphae pale yellowish brown, often branched, thick-walled to subsolid, interwoven, 1–2 µm in diam.
Tubes:—Generative hyphae infrequent, hyaline, thin-walled, branched, 1.8–3 µm in diam; skeletal hyphae dominant, pale yellowish brown, thick-walled with a wide to narrow lumen to subsolid, rarely branched, interwoven to more or less parallel the tubes, 1.8–3.2 µm in diam, binding hyphae pale yellowish brown, often branched, thickwalled to subsolid, interwoven, 0.5–2 µm in diam. Cystidia absent, fusoid cystidioles present, hyaline, thin-walled, 15–22 × 5–7 µm. Basidia clavate, with four sterigmata and a basal clamp connection, 15–30 × 6–9 µm; basidioles in shape similar to basidia, but slightly smaller.
Basidiospores:—mostly subglobose to broadly ellipsoid, sometimes globose or ellipsoid, truncate, pale yellowish, thick-walled, smooth, IKI–, CB+, [120/3/3] 5–6.2(–7) × 4–5.4(–5.8) µm, L = 5.74 µm, W = 4.73 µm, Q = (1.02–)1.09– 1.38(–1.5), Q m = 1.22 ± 0.05.
Additional specimens examined (paratypes):— CHINA. Hubei Province, Yichang, Development area,Development Avenue, No. 56, 14 August 2018, Li20180814-02 , Li20180814-03 . GenBank accession numbers: ITS: OP942412 and OP942413 , LSU: OQ195124 About LSU and OQ195125 .
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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