E-Flora BC: Electronic Atlas of the Flora of British Columbia

Stropharia rugosoannulata Farl. ex Murrill
wine-red Stropharia

Species account author: Ian Gibson.
Extracted from Matchmaker: Mushrooms of the Pacific Northwest.

Introduction to the Macrofungi

© Simon Chornick  Email the photographer   (Photo ID #22073)

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Distribution of Stropharia rugosoannulata
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Species Information

recognized by wine-red to tan cap, grooved often segmented or claw-like ring, growth on wood chips, mulch, straw, lawns, gardens, and other cultivated areas, and purple-black spore deposit; there is a white form pictured in Phillips; description derived from Arora(1) except where noted; found at least WA (Stuntz), MA (Murrill), common in New England, collections from BC at Pacific Forestry Centre and University of British Columbia; Breitenbach(4) give distribution as North America, Europe, Asia
4-15(20)cm across, "obtusely bell-shaped or convex" becoming broadly umbonate to flat; color variable, wine-red to purple-brown to reddish brown when fresh, but fading to tan, straw, or even grayish as it ages; "smooth, slightly viscid or dry", (Arora), "dark wine-brown when young, irregularly covered with whitish veil remnants, later increasingly paler to ocher-brownish and with fine, wine-reddish fibrils", almost cream-colored when old, (Breitenbach), cracking when old (Lincoff(2))
thick, fairly firm; white
adnate or notched (but sometimes becoming free when old), crowded; "at first whitish but soon gray and finally purple-gray to purple-black with whitish edges"
7-12(25)cm x 1-3(7)cm, "often enlarged at base"; white or discoloring yellowish to brownish when old, "base often with white mycelial threads attached"
membranous, white, forming thick, persistent superior ring on stem that is soon blackened by spores, ring grooved or striate on upper surface and often split radially into segments
pleasant (Phillips), pleasant, faintly farinaceous, (Miller)
pleasant (Phillips)
Microscopic spores:
spores 10-15 x 6-9 microns, elliptic, smooth; chrysocystidia present on gills, (Arora), spores 9.4-12.3 x 7.1-8.9 microns, "elliptic-ovate, smooth, ocher-brown, thick-walled, with a germ pore"; basidia 4-spored, 26-33 x 8-9.5 microns, cylindric-clavate, without basal clamp connection; cheilocystidia "(chrysocystidia?) in part with contents not changing color in KOH, vesicular, ventricose, clavate, or lageniform, with an apical protrusion", 30-45 x 11-22 microns, pleurocystidia 28-50 x 10-13 microns, fusiform-ventricose, some also with contents not changing color in KOH; cap cuticle of periclinal hyphae 5-13 microns across, brown-pigmented; clamp connections on some septa in cap cuticle, (Breitenbach)
Spore deposit:
deep purple-brown to black (Arora), dark brownish violet (Breitenbach)

Habitat / Range

scattered to gregarious "in mulch, wood chips, straw, lawns, gardens, and other cultivated areas", (Arora), May to October (Lincoff(2)), spring, summer, fall

Taxonomic and Nomenclatural Links

Additional Range and Status Information Links



Additional Photo Sources

Related Databases

Species References

Arora(1)*, Phillips(1)*, Lincoff(2)*, Miller(14)*, Ammirati(1)*, Lincoff(1)*, Schalkwijk-Barendsen(1)*, Kibby(1)*, Courtecuisse(1)*, Bessette(2)*, Breitenbach(4)*, Stuntz(2), Murrill(6), AroraPocket*

References for the fungi

General References