Entoloma minutisporum (Vila & Llimona) Carbó, Vila, Català & F. Caball.
publication ID |
https://doi.org/ 10.11646/phytotaxa.277.3.1 |
persistent identifier |
https://treatment.plazi.org/id/03808015-FF8B-FF9C-FF45-1057FD18EF2A |
treatment provided by |
Felipe |
scientific name |
Entoloma minutisporum (Vila & Llimona) Carbó, Vila, Català & F. Caball. |
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8. Entoloma minutisporum (Vila & Llimona) Carbó, Vila, Català & F. Caball. View in CoL (in Vila et al. 2013: 19), FIGURE 8 View FIGURE 8 .
≡ Entoloma sericeum var. minutisporum Vila & Llimona (2006: 177) View in CoL
Description:— Pileus 18–20 mm broad, convex-campanulate, truncate or depressed, hygrophanous, translucent-striate at the margin up to more than half radius, slightly fibrillose, smooth, dark greyish brown. Lamellae adnate to emarginate, subdistant, ventricose, pink, edge entire, concolourous. Stipe 30–40 × 1–2 mm, central, cylindrical, equal, fibrillose, smooth, concolourous with pileus, whitish tomentum at the base. Context thin, pale greyish brown. Odour strongly farinaceous. Taste strongly farinaceous.
Basidiospores 6.4–8.8 × 5.6–7.2 μm, Lm = 7.6, Wm = 6.4, Q = 1.0–1.3, isodiametrical to subisodiametrical, some heterodiametrical, 5–7 (–8) angled in side-view, colourless. Basidia 21–28 × 8–10 μm, 4-spored, clavate or cylindro-clavate, colourless or yellowish, clamped. Pleurocystidia absent. Cheilocystidia absent. Pileipellis a cutis, terminal elements 38–78 × 3–6 μm, cylindrical, with a small amount of yellowish encrusted pigment. Caulocystidia absent. Clamp-connections present, but absent in the pileipellis.
Habit and habitat:—Gregarious, on humus, in cloud forest with Abies , Quercus , Pinus , and Clethra .
Material studied:— MEXICO. Jalisco, Municipality of Zapotlán el Grande, slopes of Nevado de Colima, El Floripondio, 16 September 1991, L. Guzmán-Dávalos 5432 (IBUG!).
Comments:— Entoloma minutisporum belongs to the complex of E. sericeum in the paraphyletic subgenus Nolanea . Vila et al. (2013) made a thorough study of the complex, based on both molecular and morphological data. The Mexican material fits well into this group and is morphologically very similar to E. minutisporum , which is characterised by the small basidiospores 6.9–8.0 × 6.1–7.2 μm, Lm = 7.4, Wm = 6.5 μm, Q = 1.04–1.25. Furthermore, this species has a stipe concolourous or slightly paler than the pileus, covered by abundant whitish fibrils, and clamp-connections present in all parts, but scarce in the pileipellis. Entoloma llimonae and E. sericeum differ because of the larger and wider basidiospores ( Vila et al. 2013).
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Entoloma minutisporum (Vila & Llimona) Carbó, Vila, Català & F. Caball.
Montañez, Diego, Noordeloos, Machiel E., Rodríguez, Olivia, Vargas, Ofelia & Guzmán-Dávalos, Laura 2016 |
Entoloma sericeum var. minutisporum
Vila, J. & Llimona, X. 2006: ) |