Piptoporellus taiwanensis Chia-I Jen, Lean-Teik Ng, Ming-Nan Lai & Hiran Ariyawansa, sp. nov.
Creators: name: Jen, Chia-I
name: Lai, Ming-Nan
name: Ariyawansa, Hiran A.
name: Bandara, Asanka R.
name: Ng, Lean-Teik
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Fungi
Basidiomycota
Agaricomycetes
Polyporales
Fomitopsidaceae
Piptoporellus
Piptoporellus taiwanensis

description: Piptoporellus taiwanensis Chia-I Jen, Lean-Teik Ng, Ming-Nan Lai & Hiran Ariyawansa, sp. nov. (Figs 2–3)
MycoBank MB 847120
Type:— TAIWAN. Taiwan: Nantou County, Yuchi Township, Sun Moon Lake, on dead trunk of Limlia uraiana (Hayata) Masam. & Tomiya, 20 July 2016, Ming-Nan Lai (holotype: NTUPPMH 22-006; ex-type culture: NTUPPMCC 22-006)
Etymology:— Based on the country from which the fungus was first collected.
Description:— Basidiocarps annual, pileate, substipitate, imbricate, fragile and light in weight upon drying, strong odour; pileus projecting up to 24 cm, 19 cm wide, 3 cm thick, flabelliform, dimidiate or semicircular, glabrous, undulated, and multilobed or overlapping, upper surface light pink, creamy, honey yellow to orange when young, yellow, orange to brown upon aging, soft without crust, with a few faint concentric brown zones, margin yellow to orange when young, becoming brownish orange to a rusty brown when aging and drying, incurved; pores 2–4 per mm, round to angular or irregular, surface ivory, buff to yellow, tubes up to 2 mm, concolorous with pore surface; context creamy to pale yellow, corky, up to 8 mm thick. Hyphal system dimitic; generative hyphae thin-walled, hyaline, with clamp connections, 2.2–5.6 μm in diameter; skeletal hyphae thick-walled, hyaline, aseptate, flexuous, rarely branched, interwoven, occasionally with a distinctly narrow lumen, 2.8–10.4 μm in diameter. Basidia clavate, bearing 4 sterigmata, 13.4–23.4 × 3.3–5.3 μm; basidioles in shape similar to basidia but distinctly smaller, 8.3–18.1 × 3.0–5.0 μm. Basidiospores cylindrical to oblong ellipsoid, slightly apiculated, thin-walled, hyaline, smooth, 4.1–7.4 × 2.6–4.1 μm.
Note:— The general morphology of Piptoporellus taiwanensis fits well with generic characters of the genus Piptoporellus in having annual, pileate, or stipitate basidiomata, similar pileus colouration, a dimitic hyphal system, thin-walled basidiospores, and presence of clamp connections (Han et al. 2016). However, P. taiwanensis is easily distinguished from the phylogenetically closely related species P. triqueter, having larger basidiospores (4–7 × 2–4 μm versus 4–6 × 2–3 μm) and found in a different geographical location (Taiwan versus China). Piptoporellus taiwanensis can be separated from P. baudonii, which has larger basidiospores (6–7 × 3.5–4.0 μm) and is known from Africa and Madagascar.
Phytochemical contents
The phytochemical contents of P. taiwanensis fruiting bodies are presented in Table 3.
description: Published as part of Jen, Chia-I, Lai, Ming-Nan, Ariyawansa, Hiran A., Bandara, Asanka R. & Ng, Lean-Teik, 2023, Piptoporellus taiwanensis sp. nov. (Polyporales, Fomitopsidaceae) from Taiwan and its phytochemistry, pp. 289-300 in Phytotaxa 625 (3) on pages 295-297, DOI: 10.11646/phytotaxa.625.3.5, http://zenodo.org/record/10150779