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All Fungi
Gyalecta biformis
Nomenclature
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Family: GyalectaceaeGenus: Gyalecta
SUMMARY
Thallus thin, somewhat scurfy and smooth or immersed and then inconspicuous, pale grey or green-grey, sometimes orange due to iron deposits or overgrown by a cyanobacterial crust.
Anamorph: no information available.
Teleomorph: ascomata apothecia 200-350 µm diam., scattered or confluent, ± immersed at first, becoming emergent; disc 150-300 µm diam., strongly urceolate, sometimes irregular due to compression from surrounding substratum, with a well-developed, raised, smooth and pale or concolorous margin, buff to orange. Interascal tissue of thin-walled usually unbranched paraphyses ca 2 µm diam., containing orange pigments and immersed in a gelatinous matrix. Asci 90-105 x 15-25 µm, clavate, with a fairly long tapering stalk, thin-walled, not fissitunicate, without apical structures, 8-spored. Ascospores 21-31 (-33) × (3-) 4-6 μm, ± cylindrical to cylindric-fusiform, with 5-7 transverse septa with an occasional single longitudinal or oblique septum, hyaline, fairly thin-walled, smooth, without an epispore, gelatinous sheath or appendages.