Hohenbuehelia canadensis Consiglio, Setti & Thorn

Khalid, Muhammdah, Razzaq, Fauzia, Ashraf, Urooj, Afshaan, Najam-ul-Sehar & Khalid, Abdul Nasir, 2024, Three new records of genus Hohenbuehelia (Pleurotaceae, Agaricales) in Pakistan, Italian Botanist 18, pp. 179-191 : 179-191

Hohenbuehelia canadensis Consiglio, Setti & Thorn , Persoonia 41: 208 (2018)

Fig. 3

Description.

Basidiomata small-sized, solitary, on fallen branches, soft. Pileus 1.5–2.0 cm wide, fan-shaped, margin incurved, undulating; cream to light brown to camel brown (2.5 Y 8 / 1) from center becomes dark to grayish brown (7.5 YR 5 / 2) towards margins, surface flexuous, smooth, sticky, scales absent; context moderately thick, soft to firm, unchanging when bruised or cut; margins without striation. Lamellae radiating at point of attachment, moderately close, striate, entire margins, pale cream (10 YR 8 / 4). Context gelatinous. Odor and Taste not recorded.

Basidiospores (6.4 ‒) 7.6‒9 (‒ 11) × (3.2 ‒) 3.9‒5 (‒ 5.8) μm, avl × avw = 8.85 × 8.12 μm, hyaline, inamyloid, smooth, ellipsoid, slightly granular content or oily drops. Basidia, 22–25 × 6.7–7.3 µm, clavate, 4 – spored. Hymenophoral trama irregular, hyaline; hyphae 2.2–4.1 μm diam. Cheilocystidia present along the lamellar edge, lanceolate, dextrinoid, and metachromatic, partly covered with refringent, yellow or whitish. Pleurocystidia clavate-lecythiform, the base 14–18 × 4.2–5.9 μm. Pileipellis thin, approximately 11–13 μm, 2–4 μm in diam., brown, clamp-connections present in all pseudotissues.

Habit and habitat.

Singly or occasionally in small imbricate clusters on a log of Abies pindrow (Royle ex D. Don.) Royle.

Material examined.

Pakistan. Pakistan, Khyber Pakhtunkhwa province, Hazara division, Abbotabad district, Mushkpuri top , 33°40'43"N, 72°52'32"E, at 1300 m. a. s. l., on a log of Abies pindrow , 30 July 30, 2020, Urooj Ashraf, Najam-ul-Sehar Afshan & Abdul Nasir Khalid (M- 17: GenBank PP 594062, E- 89: GenBank PP 594063, LAH 38208 ) .

Figures

Figure 3. Micro-morphological features of Hohenbuehelia canadensis (M- 17): A, B basidiomata on fallen branch C, D basidiospores E basidia (sterigmata pointed by the arrow) F cheilocystidia G cheilocystidia (cap pointed by the arrow) H hymenophoral hyphae (arrow showing clamp connections) I pileipellis with terminal elements (arrow pointed). Scale bars: 1 cm (A, B); 5 μm (C); 10 μm (D); 10 μm (E – G); 5 μm (H, I).