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Cainia sp. P2648
Nomenclature
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Family: CainiaceaeGenus: Cainia
SUMMARY
Anamorph: not known.
Teleomorph: stromata absent. Ascomata scattered or in small clusters, visible externally as effuse to well-defined dark grey hardly to strongly domed clypeus-like structures 400-650 µm diam. with papillate ostioles, covering a single ascoma. Ascomata 300-400 µm diam. and 250-350 µm tall, subglobose, the ostiole lined with periphyses. Peridium 15-20 µm thick, composed of an outer layer of dark brown angular cells and an inner layer of hyaline flattened tissue. Interascal tissue of unbranched thin-walled paraphyses 3-4.5 µm diam., immersed in copious mucous gel. Asci 120-135 x 14-18 µm, cylindrical to cylindric-clavate, with a fairly short tapering stalk, the apex obtuse, fairly thick-walled but not fissitunicate, with a very large conspicuous J+ apical truncated-conical ring structure ca 5 µm diam. and 5 µm tall, 8-spored. Ascospores biseriately arranged, 19.5-24 x 8-9.5 µm, fusiform-ellipsoidal or sometimes narrowly clavate, initially hyaline but becoming dark chocolate brown at maturity, distinctly constricted at the ± median septum, smooth and very thick-walled, each cell with two pale longitudinal germ slits extending almost the length of the cell, covered with a thick hyaline gelatinous sheath.