(Kohlm.) Kohlm. & Volkm.-Kohlm., 1991. Bot. Mar., 34: 35.
Dothideomycetes, Subclass Pleosporomycetidae
Quintaria lignatilis (Kohlm.) Kohlm. & Volkm.-Kohlm., 1991. Bot. Mar., 34: 35.
= Trematosphaeria lignatilis Kohlm., P.S.Z.N.I: Mar. Ecol., 5: 365 (1984).
Sexual morph: saprobic, Ascomata: 340-670 µm high, 350-600 µm in diam., obpyriform, somewhat compressed laterally, completely immersed, ostiolate, papillate, carbonaceous to coriaceous, black, gregarious. Peridium: 40-50 µm thick, 2-layered; outer stratum 20-30 µm thick, composed of irregular hyphoid cells mixed with decomposing wood or bark particles; inner stratum 16-20 µm thick, composed of flattened cells, forming a textura angularis, with oil droplets in the lumina and black pigment deposits in the cell walls. Necks: 250-460 µm long, 160-280 µm in diam., irregularly cylindrical; ostiolar canal 90 um in diam., filled with a network of thin, hyaline hyphae, embedded in a gelatinous matrix, black incrustations lining the sides of the canal. Pseudoparaphyses: 1.5-3.5 µm in diam., more or less parallel between the asci and unbranched, becoming trabeculate (branched and anastomosing), above the asci and merging with the periphysoid filaments in the ostiolar canal, embedded in gelatinous matrix which often adheres to asci in squash mounts. Asci: 230-290 x 28-37 µm, 8-spored, cylindrical, pedunculate, thick-walled, fissitunicate, with an inconspicuous, often gigantean refractive apical plate, not bluing in IKI (IKI-negative); arising from a basal ascogenous tissue. Ascospores: 51-80 x 14-20 µm, biseriate, fusiform, 5-septate, slightly constricted at the central septum, less so at the others, hyaline, rarely pale yellowish, smooth-walled, filled with many oil droplets. Asexual morph: Undetermined (Description based on Kohlmeyer (1984)).
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