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Boletinellus merulioides (Schwein.) Murrill 1909

Specimen ID

Collected  date

RSPG01919

20 ธันวาคม 2562 05:00:00

Collected   by

Thitiya Boonpratuang, Rattaket Choeyklin, Maneerat Pobkwamsuk, Sakoakan Anaphon and Thanikan Niamtaeng and Komsit Wisitrassameewong.

Identified   by

Thitiya Boonpratuang

Collected Site

Satun Province, Satun Geopark Community Fores

Habit,  habitat, substrate

Specimen was connate (stipe base fused) and growing on laterite with small rock (Terrestrial Habitat).

Macroscopic Description

Pileus infundibuliform, incurved, hygrophanous, velvety, entire, smooth, dry, soft, color brown (oac736-737), pileus context 4 mm, color light yellow (oac858). Pseudopore to lamellae 8 x 22 mm, anastomosing to intervenose, color yellow (oac845), tube 1 mm, and color yellow (oac825). Stipe 8x22 mm, diam, and color brown (oac736-737), central, equal, firm, solid, dry, fleshy, longitudinal. Odor none.

Microscopic Description

Basidiospores 11–14 x 6–7 µm, elliptical, smooth, thick-walled, hyaline, Colorless in KOH3%, inamyloid in Melzer’s reagent. Basidia 35–45 x 8–10 µm, cylindrical to clavate, smooth, thick walled, 4–spores basidia, hyaline, Colorless in KOH3%, inamyloid in Melzer’s reagent. Basidioles 27–50 x 7–9 µm, clavate to cylindrical, smooth, thick walled, hyaline, Colorless in KOH3%, inamyloid in Melzer’s reagent. Pileipellis 34–50 x 6–12(-18) µm, composed of cylindrical to pyriform, perpendicular, densely, thin walled and septate, smooth, thin walled, hyaline in water, inamyloid in Melzer’s reagent, colorless in 3%KOH. Pileus trama 5-6 mm, composed of parallel, septate, smooth, cylindrical, horizontal. Pleurocystidia 27–50 x 7–9 µm, cylindrical and eccentric at apex, smooth, produced clamp connections, thin walled and hyaline in water, inamyloid in Melzer’s reagent, colorless in 3% KOH. Stipitipellis 5–6 µm, composed of cylindrical, thin walled, produced clamp connections, parallel, septate, smooth, thin walled, hyaline in water, inamyloid in Melzer’s reagent, colorless in 3%KOH.

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