Mycoaciella

Mycoaciella J. Erikss. & Ryvarden 1978, in Gorjón, Studies in Fungi 5(1), 241 (2020).

Diagnosis: Basidiome resupinate, effuse, adnate, not detachable, when fresh of ceraceous consistency, hymenophore hydnoid with dense, cylindrical or narrow conical subulate aculei. Hyphal system dimitic to trimitic, skeletal hyphae straight, parallel, thick-walled, micro-binding hyphae may be present, generative hyphae thin-walled, with clamps, richly branched and interwoven, trama of the aculei to the largest part composed of parallel hyphae, subhymenium thin, distinct, separate from the trama. Cystidia small, cylindrical, thin-walled, with an apical globule of excreted, resinous matter. Basidia clavate, normally with 4-stergimata. Basidiospores narrowly ellipsoid, thin-walled, smooth, inamyloid.

Mycoaciella is characterized by a dimitic to trimitic (with microbinding hyphae), hydnoid hymenophore, and small cystidia with a cap of resinous substance (Eriksson et al. 1978). It was considered a synonym of Phlebia Fr. by Nakasone (2002) but it is still in use by other authors.

Index Fungorum Number: IF18092

Type Species: Mycoaciella bispora (Stalpers) J. Erikss. & Ryvarden 1978

Species:

Mycoaciella badia (Pat.) Hjortstam & Ryvarden 2004

Mycoaciella bispora (Stalpers) J. Erikss. & Ryvarden 1978

Mycoaciella brunnea (Jülich) Hjortstam & Spooner 1990

Mycoaciella brunneospina C.L. Zhao 2023

Mycoaciella dusenii (Henn.) Hjortstam & Ryvarden 2009

Mycoaciella efibulata C.C. Chen & Sheng H. Wu 2021

Mycoaciella hinnulea (Bres.) Hjortstam & Ryvarden 1980

Mycoaciella uda (Fr.) C.L. Zhao 2023

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