Holotype:
THAILAND, Chiang Rai Province, Wiang Pa Pao district, Santhat Kut, 21 Aug. 2019, U. Pinruan, S. Sommai, P. Khamsuntorn, holotype BBH 48198.
Habitat:
On soil under Pinus merkusii (Pinaceae)
Description:


Pileus 12–60 mm diam, pulvinate, convex to plano convex with depressed at centre, light orange yellow, light yellow, brilliant yellow to vivid yellow, not staining when bruised, KOH negative on cap surface; margin arched; surface smooth, dry, firm. Lamellae adnexed, some forked near stipe, subdistant unequal, some crisped, pale yellow, not staining when handled. Stipe 10–40 × 5–12 mm, regular and cylindrical, slightly tapering downwards, stuffed; surface smooth, dry, pale yellow, not staining when handled. Context firm and thick, white to cream, 2–4 mm wide, KOH negative, Latex not abundant, whitish, milky. Odour indistinct. Taste unrecorded. 

Basidiospores broadly ellipsoid to ellipsoid, 8.8–10.0 × 3.8–8.8 μm; ornamentation amyloid, composed of isolated warts, up to 1 μm tall; plage distinct and often weakly centrally to distally amyloid. 

Basidia 25.0–37.5 × 7.5–12.5 μm, subclavate, 4-spored. 

Pleurocystidia 37.5–45 × 10–17.5 μm, subclavate to clavate, thin-walled. Cheilocystidia absent. Lamellar edge fertile. Lamellar trama 20–100 μm wide, composed of numerous and hyphae; sphaerocytes, lactiferous hyphae contain needle-like to granular or crystal, 2.5–10 μm wide. Subhymenium 7.5–12.5 μm thick, composed of slender cylindrical cells up to 10 μm wide under basidia. Hymenophoral trama consists of isodiametric sphaerocytes and hyphae, 27.5–87.5 μm thick. Pileipellis intermixed with laticiferous hyphae, 3.75–8.75 μm wide, aseptate, thin-walled, and hyaline hyphae 2.0–13.8 μm wide, septate, thin-walled. Stipitipellis composed of sphaerocytes and lactiferous hyphae, 2.5–10.0 μm wide, hyaline. Clamp connections absent.
Reference:
Tan YP, Bishop-Hurley SL, Shivas RG, et al. (2022). Fungal Planet description sheets: 1436–1477. Persoonia49: 261– 350.
DOI: https://doi.org/10.3767/persoonia.2022.49.08Species |
Strain |
Compound |
Pubchem CID |
Biological activity |
Reference |
|---|
|
Strain |
ITS | RPB2 |
|---|---|---|
| BBH 48198 | OP420542 | OP432869 |