Melastiza chateri
(W.G.Sm.) Boud.
Study description
General: Sessile apothecia, orange, disc-shaped to shallowly cupulate, 0.5-1.5 cm in diameter, margin covered with a darker brown pruinose-hairy fringe, fruiting abundantly on sandy soil along riverbanks.
Marginal hairs: Filiform, septate, 70-180 µm long, with blunt rounded apices.
Excipulum: Ectal excipulum of textura globoso-angularis, composed of large hyaline cells up to 100 µm or more in diameter.
Asci: Cylindrical, 8-spored, uniseriate, 250-300 x 13-15 µm, apical apparatus inamyloid in Melzer's reagent.
Paraphyses: Filiform, simple, septate, 2.5-4 µm wide, apices swollen to 6-10 µm, filled with orange carotenoid granules.
Ascospores: Ellipsoid, hyaline, moderately thick-walled, 15-20 x 7.5-9 µm, ornamented with prominent interconnected ridges 2-3 µm high forming a complete polygonal reticulum, with a distinct wart-like polar appendage at each pole.
Marginal hairs: Filiform, septate, 70-180 µm long, with blunt rounded apices.
Excipulum: Ectal excipulum of textura globoso-angularis, composed of large hyaline cells up to 100 µm or more in diameter.
Asci: Cylindrical, 8-spored, uniseriate, 250-300 x 13-15 µm, apical apparatus inamyloid in Melzer's reagent.
Paraphyses: Filiform, simple, septate, 2.5-4 µm wide, apices swollen to 6-10 µm, filled with orange carotenoid granules.
Ascospores: Ellipsoid, hyaline, moderately thick-walled, 15-20 x 7.5-9 µm, ornamented with prominent interconnected ridges 2-3 µm high forming a complete polygonal reticulum, with a distinct wart-like polar appendage at each pole.
Geographic references
Map generated from global occurrence data from GBIF. GBIF.
Study measurements
Values in Microns (µm)Macroscopic gallery
1 / 4Melastiza chateri - 1 - IMG_4758
Microscopic gallery
1 / 7Melastiza chateri - 10 - Paráfisis 1