Chaetomium convolutum Chivers 1912

Alstroemeria sp.; Lonicera sp.

British Isles; Egypt; UK.

Colonies. With a daily growth rate of 4-5 mm, without aerial mycelium, occasionally with pale green exudates. Ascomata. superficial, pale metallic or mouse grey in reflected light when young, grey when old, obovate, ovate, turbinate or ampulliform, 140-250 μm, up to 400 μm high, apically flatter, with an often darkened collar around the ostiolar pore; producing asci and ascospores within 14 to 18 days; ascomatal wall ochraceous or cinnamon-brown, partly composed of elongate cells arranged like petals round a rounded, hair-bearing cell; ascomatal hairs mainly arising from the apical collar, erect, in the upper part spirally coiled, brown, thick-walled, septate, verrucose or warty, 4-6 μm thick, lateral hairs seta-like, tapering, septate, verrucose or warty arid brown. Asci. Fasciculate, numerous, clavate, with a long stalk, 11-15 μm broad, evanescent, 8-spored, often surrounded by broad, delicate paraphyses-like filaments. Ascospores. Limoniform, at both ends slightly apiculate, bilaterally flatter, colourless-and dextrinoid when young, later pale bluish grey, darker near the ends, 7-9.5 × 6-7 × 5-6 μm, with an apical germ pore.

Chaetomium convolutum je grzib, co go ôpisoł Chivers 1912. Chaetomium convolutum nŏleży do zorty Chaetomium i familije Chaetomiaceae.