MIN : Fungi
Bell Museum fungi
Catalog (Accession) #:
976929
Occurrence ID (GUID):
c1396346-3d6b-427c-bf0e-691c375babfa
Secondary Catalog (Accession) #:
1406199
Taxon:
Hortiboletus campestris (A.H. Sm. & Thiers) Biketova & Wasser
Family: Boletaceae
Family: Boletaceae
Determiner: D.J. McLaughlin (29-Feb-2024)
ID Remarks:
Identification is based on macroscopic and microscopic analysis.
Collector:
D.J. McLaughlin DJM2203
Date: 2021-09-03
Verbatim Date: 2021-09-03
Additional Collectors:
E.G. McLaughlin
Locality:
United States, Minnesota, Hennepin, Minneapolis, East River Terrace
Verbatim Coordinates:
T29N R23W S30
Habitat:
In grass in lawn under bur oak and spruce.
Description:
Field Description: Habit: Gregarious. Basidiocarp: PILEUS: Shape: Convex. Breadth: 2.9-3.3 cm. Color: Moderate reddish Brown. Changes: None. Surface: Dry to slightly viscid, glabrous, slightly rimose on disc when mature, margin even and appendiculate. Flesh: Consistency: Soft. Thickness: 5-6 mm. Color: Pale Yellow. Changes: Instantly bluing. Odor: Slight, not distinctive. Taste: Mild, pleasant, not distinctive. HYMENOPHORE: Attachment: Uncinate when mature. Length: 4 mm. Color: Brilliant Yellow. Changes: Bluing; overnight brownish Orange. Edges (Color & Shape): Concolorous, bluing, even. Spacing & pattern: Round to elongate, 2/mm, in single, still maturing fruitbody. STIPE: Shape: Equal to enlarged downward. Size: 4.8-5.0 x 0.6-0.8 above, 0.8-1.0 cm below. Surface: Dry, strongly striate to subtomentose base. Color: Brilliant Orange Yellow at apex, then streaked with brilliant Orange Yellow and moderate reddish Orange; base dull brownish. Changes: NA. Flesh color: Brilliant Yellow. Flesh color changes: Bluing. SPORE DEPOSIT COLOR: Slight deposit: dark Olive Brown. 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 thin spore print (x520, 5% KOH) subfusiform to nearly oblong-elliptical, smooth, without germ pore, small hilar appendix, pale brownish, profile: 10.2-11.4 (-12.0) x 3.6-4.8 µm (n=20). Pileipellis from radial section near center of pileus, revived in 5% KOH (x520) a trichoderm, a layer of tightly packed, upright filaments a few cells long with smooth outer walls, hyaline or very pale yellowish, mainly uninflated filaments up to 7.2 µm wide, with obtuse or tapered terminal cells, the latter rarely inflated.
Life Stage:
Basidiocarp
Usage Rights: CC0 1.0 (Public-domain)
Rights Holder: Bell Museum, University of Minnesota
Access Rights: Users are required to adhere to Bell Museum collections policy. Questions may be directed to the curator in charge.
Record Id: c1396346-3d6b-427c-bf0e-691c375babfa
For additional information on this specimen, please contact:
collections manager Timothy Whitfeld (museum-herbarium@umn.edu)
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