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All Fungi
Trichoderma minutisporum
Nomenclature
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Family: HypocreaceaeGenus: Trichoderma
SUMMARY
Anamorph: effuse, colonies extending to several mm diam., bluish- to medium green; conidia ellipsoidal, smooth, light bluish green in mass.
Teleomorph: stromata when fresh 1–7 (–11) mm diam, 0.5–2.5 (–3) mm thick, pulvinate or semiglobose, sometimes turbinate or discoid, broadly attached, sometimes with white base mycelium. Margin or edges adnate or free, often lobed or undulate, smooth, sterile. Surface smooth or slightly wrinkled, finely tubercular due to convex ostioles; rarely perithecia slightly protuberant when old. Ostioles flat or projecting to ca 15 μm, conical or cylindrical, slightly darker than the stroma surface, reddish-, olive or dark brown. Stromata starting as a white mycelium, becoming compacted, turning rosy-brown, brown-orange, light brown or reddish brown, with or without a white margin. Perithecia (190–) 210–270 (–320) × (115–) 130–200 (–240) μm, ellipsoidal, flask-shaped or globose, the neck 50–80 (–105) μm long, (20–) 26–40 (–47) μm diam. at the apex, periphysate. Interascla tissue not present. Asci (77–) 90–110 (–120) × (5.0–) 5.5–6.5 (–7.0) μm, stipe (3–) 9–20 (–27) μm long, 8-spored. Ascospores hyaline, verruculose, the cells dimorphic; distal cell (3.7–) 4.0–4.8 (–6.0) × (3.2–) 3.5–4.0 (–5.0) μm, subglobose, ellipsoidal or wedge-shaped; proximal cell (4.2–) 4.8–6.0 (–7.2) × (2.7–) 3.0–3.5 (–4.0) μm, wedge-shaped or ± cylindrical.