Sclerotinia veratri E.K. Cash & R.W. Davidson
no common name
Sclerotiniaceae
Species account author: Ian Gibson.
Extracted from Matchmaker: Mushrooms of the Pacific Northwest.
Introduction to the Macrofungi
no common name
Sclerotiniaceae
Species account author: Ian Gibson.
Extracted from Matchmaker: Mushrooms of the Pacific Northwest.
Introduction to the Macrofungi
Photograph
Species Information
Summary:
Sclerotinia veratri produces small, yellow-brown to red-brown to vinaceous-brown stemmed cups on Veratrum spp. growing from a blackish crust or a rice-grain-shaped sclerotium.
Odor:
not distinctive (MykoWeb)
Taste:
not distinctive (MykoWeb)
Microscopic:
spores 15-17.6 x 5-6.5 microns, oblong-elliptic, colorless, unicellular, with 2 droplets, irregularly 1-seriate; asci 140-150 x 11-13 microns, cylindric, "attenuated near base, wall thickened at apex"; paraphyses 2-2.5 microns wide at apex, "filiform, septate, simple or branched near the base, pale brown", (Davidson, R.W.), spores 14.5-19.0 x 5.5-6.5 microns, elliptic, "smooth, thin-walled with two to several oil droplets"; asci 8-spored, uniseriate, (MykoWeb)
Notes:
It is reported at least from BC on Veratrum viride (Kroeger(5)), from CA (MykoWeb), and from CO (type on Veratrum californicum, in Davidson, R.W.(3)).
Habitat and Range
SIMILAR SPECIES
A number of other Sclerotinia species occur in the Pacific Northwest: the herbarium at the University of British Columbia has collections from BC named as Sclerotinia sclerotiorum (6), and Sclerotinia trifoliorum (2) (as well as several now considered to be in other genera).Habitat
single to gregarious on stems of rotting Veratrum spp. (corn-lily), fruiting in the spring shortly after snow melt, (MykoWeb(1)), type on Veratrum californicum in Colorado: the sclerotia were often observed on old stems but cups seldom found, (Davidson, R.W.)