Repetobasidium mirificum J. Erikss.
no common name
Repetobasidiaceae
Species account author: Ian Gibson.
Extracted from Matchmaker: Mushrooms of the Pacific Northwest.
Introduction to the Macrofungi
no common name
Repetobasidiaceae
Species account author: Ian Gibson.
Extracted from Matchmaker: Mushrooms of the Pacific Northwest.
Introduction to the Macrofungi
Photograph
Species Information
Summary:
Features include 1) resupinate growth on decayed conifer wood, 2) a fruitbody that is waxy, visible as an inconspicuous bloom on the wood, 3) spores that are nearly round, smooth, inamyloid, and acyanophilic, 4) microscopic features (characterizing the genus) of the basidium which forms perpendicularly from the sparse basal hyphae by "internal repetition" from a previous basidium, forming a stem that has no septa but has clamp connections and other traces from previous basidia at intervals, and 5) capitate cystidia bearing a granular droplet.
Microscopic:
SPORES 5-7 x 4.5-5.5 microns, nearly round, smooth, inamyloid, acyanophilic, thin-walled; BASIDIA 4-spored, (8)10-13 x (5)7-8 microns, subglobose-pyriform, with basal clamp connection; CYSTIDIA 30-45 x 5-7 microns, capitate, with apical round drop about 10 microns wide, granular, at first colorless, drying to amber or yellow-red, visible under lens also in herbarium; HYPHAE monomitic: hyphae 2-3(4) microns wide, the basal ones close to the wood with perpendicular basidial branches, basal hyphae not gelatinous, (Eriksson)
Notes:
Repetobasidium mirificum has been found in BC, NM, and PQ, (Ginns). It has also been found in Finland, Germany, Norway, Sweden, and the USSR, (Eriksson).
Habitat and Range
SIMILAR SPECIES
Repetobasidium conicum has conic cystidia (Eriksson). Repetobasidium canadense has elliptic spores (Eriksson).Habitat
on very decayed conifer wood, like other very thin corticioid fungi mostly found during wet conditions, (Eriksson)
Status Information
Synonyms
Synonyms and Alternate Names:
Helvella stevensii Peck
Leptopodia stevensii (Peck) Le Gal