Bell Museum fungi (MIN:Fungi)
961833
ff880fcb-45a5-4e58-bd61-94c0ce5fd100
1301079
Cortinarius alboviolaceus (Pers.) Fr.
aff.
Cortinariaceae
McLaughlin, D.J.
27-Feb-2019
aff.
Morphology and basidiospores agree with descriptions of this species, e.g., H. Knudsen and J. Vesterholt, eds., Funga Nordica (2012) and Miller and Miller (2006), North American Mushrooms, but colors of the fresh and dried fruiting bodies in this collection are much darker and the white universal veil is much thicker and more persistent than reported for this species. Sequence needed to confirm identification.
McLaughlin, D.J.
DJM1981
2015-08-20
20 Aug 2015
E.G. McLaughlin
United States, Minnesota, Beltrami, Old Caribou Camp Trail, Big Bog State Recreation Area, North Unit,
T156N R31W S36 SW
under spruce and poplar.
On ground in needle duff and Cornus canadensis
FIELD DESCRIPTION OF AGARICS & BOLETES Collection No.: DJM 1981 Name: Cortinarius aff. alboviolaceus (Fr.) Kumm. (#16) Locality, Date: Marsh Vista Trail, Big Bog State Recreation Area, Beltrami Co., MN, 20 Aug. 2015. Habitat: On ground in needle duff and Cornus canadensis under spruce and poplar. PILEUS: Shape Convex. Breadth 4.5-4.8 cm. Color Margin light purplish Gray; disc light Brown to brownish Orange. Changes None. Surface Appressed fibrillose. Flesh: Consistency Firm. Thickness 5 mm. Color Light grayish Brown. Changes None. Odor Earthy. Taste Mild, not distinctive. HYMENOPHORE: Attachment Uncinate. Length 7 mm. Color Moderate Brown. Changes None. Edges (Color & Shape) Concolorous, somewhat wavy. Spacing & pattern Subdistant, separate. Lamellulae Present; 1-2 sets; inner ends truncate. STIPE: Shape Clavate. Size 7.0-7.5 x 1.1 cm. Surface Dry, fibrillose. Color Very pale Gray above, dingy whitish below. Changes None. Flesh color Light grayish Brown above with a hint of Purple, mostly dingy light yellowish Brown; very wormy. Flesh color changes None. VEIL: Cortina with orange spores on stipe apex. Universal Veil: Thick, whitish, sheathing lower stipe. SPORE DEPOSIT COLOR: Moderate Brown. EXSICCATAE color: Pileus near light grayish Brown, but darker and near dark Brown on disc. Stipe surface light grayish yellowish Brown and whitish toward base. N.B. Colors from K.L. Kelly and D.B. Judd, Color, Universal Language and Dictionary of Names,1976, supplemented with ISCC-NBS Centroid Color Charts.
MICROSCOPIC ANALYSIS: Basidiospores from spore print (x 1250, 5% KOH or Melzer’s reagent) elliptical, yellowish Brown, verrucose, covered with small warts evenly distributed over the surface, dextrinoid, profile: (8.2-) 9.2 – 9.7 (-10.4) x 5.6 – 6.1 µm (n = 11).
Bell Museum, University of Minnesota
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For additional information about this specimen, please contact: Timothy Whitfeld, Collections Manager (museum-herbarium@umn.edu)
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