Mintera reticulata
Mintera reticulata (Starbäck) Inácio & P.F. Cannon, Mycol. Res. 107(1): 86 (2003).
≡ Parmularia reticulata Starbäck, Ark. Bot. 5(no. 7): 6 (1905).
Index Fungorum number: IF 373774; Facesoffungi number: FoFxxx, Fig. 1
Description:
Parasitic on upper surface of leaves. Hyphae 2.5–4.5 μm wide, growing out from ascomata, brown, septate, branching, with sub globose, brown, smooth-walled appressoria measuring 5–6 × 4–5 μm. Sexual morph: Ascostromata 1–1.8 mm diam., solitary to gregarious, or in groups, superficial, dark brown to black, coriaceous, star-shaped, flattened, with a longitudinal slit, easily detachable. Locules 140–230 μm wide, 200–600 μm high, immersed in ascostromata, oblong, semicircle in longitudinal ridges radiating from the centre. Peridium 5–15 μm wide, composed of hyaline to dark brown cells of textura angularis. Asci 40–55 × 15–25 μm (x̅ = 48.5 × 21 μm, n = 20), bitunicate, fissitunicate, broadly cylindrical to clavate, or obclavate, subglobose, with a distinct ocular chamber. Ascospores 14–18 × 5–8.5 μm (x̅ = 16.5 × 7.2 μm, n = 20), 2–multi-seriate, hyaline to pale brown, ellipsoid to ovate with rounded ends, 1-septate, constricted at the septum, upper cell larger, narrow at lower cell, smooth-walled. Asexual morph: Undetermined.
Material examined: Paraguay, Colonia Risso. Pr. Rio Apa, on upper of leaves, 30 September 1893, Leg G. A Malme, (GZU 000306012, Isotype).
Fig. 1. Parmularia reticulata (GZU 000306012, Isotype). a, b Herbarium material. c, d Appearance of ascomata on host surface. e Section of ascomata. f Hyphae with appressoria. g–j Asci. k–n Ascospores. Scale bars: c, d = 1000 μm, e = 50 μm, f, g–j = 20 μm, k–n = 10 μm.
Importance and role
Importance of genus to ecosystem
Species of Mintera are parasitic and benefit to the detriment, occasionally death of their host plant.
Industrial relevance and applications
The industrial applications of Mintera has not been investigated.
Quarantine significance
No disease has been reported from Mintera.
Biochemical importance of the genus, chemical diversity or applications
The chemical diversity of Mintera has not been reported.
Diversity of the genus
Mintera comprises only one species known on leaves in Paraguay. Mintera may comprise many more species that awaits discovery. The diversity of Mintera remains poorly documented until more taxa are described.
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