Holotype:
THAILAND, Chiang Mai Province, Kanlayaniwattana district, Huai Ban Rang Fish Sanctuary, 7 Nov. 2019, S. Sommai, P. Khamsuntorn, holotype BBH 49227.
Habitat:
On soil under Pinus merkusii trees (Pinaceae)
Description:
Pileus medium to large-sized, 0.4-8.0 cm diam, hemispheric when young, becoming plano-convex to applanate when mature, often slightly depressed at centre or to funnel-shaped (infundibuliform), surface smooth, viscid when moist, light brownish grey when young, greyish lilac when mature with yellowish white at the centre of pileus, unchanging when bruised, turning light yellow with 3% KOH. Lamellae decurrent, narrow, crowded, even, equal, pale purplish pink when bruised. Stipe 0.7-1.3 × 2.0-4.8 cm, central, equal, longitudinally, smooth, dry, striate, firm, solid, unchanging when bruised, turning light yellow to yellow with 3% KOH, white. Context 1-4 mm, thick, white, spongy to firm changing when cut pale purplish pink. Odour indistinct. Taste unrecorded. Spore print not obtained. Basidiospores 6.2-9.7 × 5.8-8.8 μm Q = 0.9-1.61, globose to subglobose or broadly ellipsoid; ornamentation amyloid; minute warts, not exceeding 1.0-2.0 μm in height; suprahilar plage indistinct; hilar appendix distinct, 1-1.5 μm in height, not amyloid; hyaline in 10%KOH. Basidia 22.0-35.3 × 5.6-9.4 μm, 4-spored with some 2-spored basidia present, narrowly clavate to clavate; sterigmata 4.0-6.0 μm in length. Lamellar trama mainly composed of nested sphaerocysts, 8.0-35.0 μm diam, and filamentous hyphae 3.0-5.0 μm thick, hyaline. Hymenial cystidia numerous, c. 1600/mm2, 32.2-46.9 × 4.1-9 μm, rarely, clavate to subfusiform, with oil-content, thin-walled, round apex, weakly greyish in sulfovanillin; abundant near the lamellae edges, 35.0-57.5 × 10.0-10.5 μm, similar to those on the sides. Lamellae edges fertile; marginal cells 17.5-22.5 × 5.0-10.0 μm, mainly clavate and shorter than basidia. Pileipellis metachromatic in Cresyl Blue, not sharply delimited from underlying context, 30.0-40.0 μm, deep, not gelatinised, a trichodermium, composed of hyphae 2.0-7.0 μm wide, thin-walled, septate. Acid-resistant incrustations absent. Hyphal terminations near the pileus margin occasionally branched, flexuous, thin-walled, septate, terminal cells 17.5-35.0 × 3.8-5.0 μm, mainly lageniform, pyriform or clavate, apical obtuse and often with glutinous coating not colouring in any reagent. Terminal cells of hyphae near the pileus centre, often cylindrical and smaller, 10.0-17.5 × 2.5-4.5 μm. Pileus trama interwoven with sphaerocysts. Pileocystidia near the pileus margin relatively numerous, 1-celled, cylindrical, rarely lanceolate, often very long and originating in the context, thin-walled, 62.5-137.5 × 3.8-7.5 μm, with dispersed granulations or locally heteromorphous- banded, weakly greyish in sulfovanillin. Pileocystidia near the pileus centre similar and shorter. Stipitipellis a cutis, composed of hyphae 2.0-5.0 μm wide, thin-walled, septate. Caulocystidia 35.5-45.8 × 8.5-10.3 μm, cylindrical to digitate, abundant. Clamp connections absent.
Reference:
Crous PW, Boers J, Holdom D, et al. (2022). Fungal Planet description sheets: 1383–1435. Persoonia 48: 261–371.
DOI: https://doi.org/10.3767/persoonia.2022.48.08Species |
Strain |
Compound |
Pubchem CID |
Biological activity |
Reference |
|---|
|
Strain |
ITS | LSU | RPB2 |
|---|---|---|---|
| BBH 49227 | MT940809 | MT940819 | MT965685 |
| BBH 49229 | MT940810 | MT940820 | MT965686 |