Cantharellales » Oliveoniaceae

Oliveonia

Oliveonia Donk 1958, in Roberts., Folia Cryptogamica Estonica, 33, 128-129 (1998)

Replaced synonym: Heteromyces L.S. Olive, American Journal of Botany. 44(5): 432 (1957)

Diagnosis: Teleomorph. Basidiome: effused, thin, ceraceous, greyish to white. Hymenium: dense, at least when young, comprising one or more layers of basidia, sometimes with scattered cystidia, arising from narrow, often agglutinated, subhymenial hyphae. Subicular or mycelial hyphae sometimes wider, closely adhering to the substratum. Hyphae: binucleate (where known), 1.5-3 µm diam. in the hymenium, thin-walled, often agglutinated, with or without clamp connexions; subicular hyphae sometimes wider, up to 5 µm diam., with slightly thickened walls. Septal pores: dolipores with continuous parenthesomes (Oberwinkler & Ryvarden, 1991). Cystidia: present or absent; when present, tubular, obtuse, up to 100 µm long with age, but more frequently 10-20 µm long and inconspicuous, thin-walled, hyaline, projecting with age. Basidia: ovoid to widely clavate (Q= 1.0-2.0), 5-14 x 4-10 µm, narrowly stalked. Sterigmata: 1-4, up to 10 µm long. Basidiospores: subglobose, ellipsoid, citriform, or oblong, producing secondary spores by replication.

Anamorph. One species (O. pauxilla) has been found to have a rhizoctonia anamorph which produces monilioid hyphal compartments in culture. This anamorph is referred to Oliveorhiza.

Index Fungorum Number: IF18145

Type Species: Oliveonia fibrillosa (Burt) Donk 1958, in Roberts., Folia Cryptogamica Estonica, 33, 128-129 (1998)

 

Species:

Oliveonia atrata (Bres.) P.H.B. Talbot 1965

Oliveonia citrispora (Hauerslev) P. Roberts 1998

Oliveonia fibrillosa (Burt) Donk 1958

Oliveonia nodosa (Hauerslev) P. Roberts 1998

Oliveonia pauxilla (H.S. Jacks.) Donk 1958

Oliveonia subfibrillosa Hallenb. 1980

Oliveonia subviolacea (Peck) M.J. Larsen 1974

Oliveonia termitophila (Oberw. & Ryvarden) P. Roberts 1998

 

Reference:

Roberts, P. (1998). Oliveonia and the origin of the holobasidiomycetes. Folia Cryptogamica Estonica, 33, 127-132.

 

 

 

 

 

Recent Genus

Granulobasidium
Gloiothele
Gloiodon

Recent Species

Metacampanella dendrophora
Dictyocephalos attenuatus
Oliveonia fibrillosa