apothecium

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Related to apothecia: cleistothecia, perithecia

apothecium

[¦ap·ə¦thēsh·əm]
(mycology)
A spore-bearing structure in some Ascomycetes and lichens in which the fruiting surface or hymenium is exposed during spore maturation.
References in periodicals archive ?
Aspicilia contorta is easily recognised by the scattered areoles, convex, grey and more or less pruinose, and by the sunken apothecia.
Apothecia immersed or semi-immersed in the thallus, disc level with thallus, or sessile, flat when mature, scattered, singly or in groups, (0.
Thallus consisting of round, flattened, sorediate areoles; apothecia rare Candelariella reflexa 1.
A pan-emperate corticolous lichen with small, black to sordid or mottled apothecia.
Fruiting bodies: Stipitate apothecia, cup-shaped, cups shallow, 0.
Apothecia were obtained using the method described for the previous test, with the modification of using only five gerboxes.
Photobiont chlorococcoid; thallus green, granulose-leprose, entirely sorediate; apothecia [+ or -] round, blue-gray, pruinose; spores 3-(5) septate.
Fewer apothecia were produced underneath the open canopy of the determinate dark red kidney bean cultivar Charlevoix and the upright canopy of the indeterminate small white bean cultivar Aurora compared with the dense canopy of several prostrate indeterminate great northern bean cultivars (Schwartz and Steadman, 1978).
Favorable conditions for the formation of apothecia, the corresponding onset of flowering for inoculation via ascospores, and appropriate temperatures following infection are critical components of the epidemiology of S.
Apothecia rounded to irregular, single or more frequently crowded and coalescing, sessile or strongly adnate, 0,3-0,6 mm in diameter; discs yellow cream to dark brown, flat to convex, very rarely pruinose; true exciple present except in very young or old apothecia, colourless within, outer part with the same pigment as in epiphymenium, laterally 33-50 [micro]m wide, composed of wide, gelatinized, anastomosing radiating hyphae (Fig.
The apothecia produce and eject ascospores that infect plants.