Cortinarius neofurvolaesus
no common name
Cortinariaceae
Species account author: Ian Gibson.
Extracted from Matchmaker: Mushrooms of the Pacific Northwest.
Introduction to the Macrofungi
no common name
Cortinariaceae
Species account author: Ian Gibson.
Extracted from Matchmaker: Mushrooms of the Pacific Northwest.
Introduction to the Macrofungi
Photograph
Map
Distribution of Cortinarius neofurvolaesus
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Species Information
Summary:
Subgenus Telamonia Section Bovini Subsection Furvolaesi. Features include 1) a hygrophanous dark red-brown cap with blackening spots, 2) pale yellowish brown young gills, 3) a clavate or bulbous stem that is finely whitish silky-fibrillose becoming grayish yellow-brown, the white veil often forming a distinct thin band in the middle of the stem, 4) a mild or slightly radish-like odor, 5) growth under pine, and 6) microscopic characters.
Cap:
3-7cm across, hemispheric becoming low convex with broad umbo; hygrophanous, "deeply and dark saturated red brown, later with darkening to blackening spots"
Flesh:
brown to fairly dark brown
Gills:
"strongly to weakly emarginate", "moderately broad", moderately crowded (36-48 reaching stem); light (grayish) ochraceous to light yellowish brown when young, when old saturated brown, edge not or somewhat lighter coloured, weakly uneven, (Kytovuori), medium-spaced; "pale yellowish brown when young, with age saturated brown", (Knudsen)
Stem:
(4)5-12(13) x 0.5-1.2cm, cylindric, "at the base weakly to strongly clavate or bulbose" (up to 2.5cm); at first white to grayish white, later grayish yellow brown, when old becoming dirty gray-brown downwards; finely silky fibrous; mycelium white, (Kytovuori), 5.0-12.0 x 0.5-1.2cm, "clavate or bulbous"; "finely whitish silky-fibrillose", later grayish yellow-brown, when old dirty gray-brown downwards, (Knudsen)
Veil:
veil "white, thin, sparse, often forming a distinct but thin band" on the middle of the stem (Kytovuori), universal veil thin, sparse, white, "often forming a distinct, but thin band in the middle of the stem", (Knudsen)
Odor:
indistinct or slightly raphanoid, (Kytovuori), indistinct or slightly radish-like, (Knudsen)
Microscopic spores:
spores from cortina 7.7-9.1 x 5.0-5.7 microns, elliptic "to very weakly amygdaliform with a rounded apex", "fairly thin-walled, moderately dextrinoid, fairly finely (sometimes moderately) and evenly verrucose", spores measured from the gills slightly narrower; basidia 4-spored, 25-32 x 5-8 microns, "with fairly dark olivaceous contents"; gill edge with rather frequent clavate to bulbose (9-23 x 5-12 microns) sterile cells; hyphae of the gill trama "smooth to very finely scabrous, in the overall view pale olivaceous yellowish"; cap cuticle with thin epicutis of 2-6 layers, hyphae 3-7 microns wide (inner wider, about 10 microns), mostly smooth with grayish brown, amorphous intracellular pigment, "somewhat cemented by a gelatinous substance", hypoderm "distinct, about 10 layers, elements short rectangular to roundish", 15-70 x 10-20(30) microns, with moderately strong, grayish brown thick-wall pigment (stronger than in C. brunneus); "transition to the trama with longer elements" (80-90 x 8-15 microns) "with more distinct cross-striped and granular incrusted pigment"; trama hyphae "loose and irregular" with a mixture of narrow (4-5 microns), weakly incrusted and broader (20-30 microns), colorless elements; clamp connections present, (Kytovuori), spores (7.5)8-8.5(9) x 5-5.5 microns, elliptic "to very weakly amygdaloid", "moderately dextrinoid, fairly finely and evenly verrucose"; "gill trama hyphae smooth to very finely incrusted", (Knudsen)
Notes:
DNA sequencing indicates its presence in BC (Harrower(1)). Morphological correlation is desirable. The holotype is from Sweden. A WA sequence is included in Liimatainen(11). Specimens were examined for the original description from Sweden (holotype), Finland, and Estonia (Kytovuori(1)).
EDIBILITY
Habitat and Range
SIMILAR SPECIES
C. sordidemaculatus is a more robust, grayish brown spruce forest species, with similar spores that are (weakly) amygdaliform (as opposed to elliptic to very weakly amygdaliform for C. neofurvolaesus). They are narrower at the apex than in C. neofurvolaesus, more strongly and less evenly verrucose, and somewhat less dextrinoid, (Kytovuori(1)).|Cortinarius anisatus usually has an anise odor, but can sometimes smell slightly radish-like instead, (Kytovuori). |Cortinarius biformis (as Cortinarius testaceofolius) usually grows in spruce forests, but can also occur in pine heaths. It has a whitish, often somewhat rooting stem, more brick-reddish gills, paler context, and more ovoid, strongly dextrinoid spores (8.0-9.2 x 5.0-6.0 microns), and distinctly incrusted hyphae of the gill trama. (Kytovuori(1)). |Cortinarius brunneogriseus 1) is more robust, 2) is more grayish, 3) has a cap that is strongly fibrillose, 4) has a veil on the stem that is "thicker and persistently white, possibly becoming pale pinkish when dried", and 5) has spores that are less dextrinoid, (Kytovuori(1)).|Cortinarius clarobrunneus also has blackening fruitbodies - it has less reddish brown colours as well as broader, almost subglobose spores (7.3-8.2 x 5.2-6.5 microns). (Kytovuori(1)). |See also SIMILAR section of Cortinarius brunneocalcarius.Habitat
often growing in groups, although sometimes single, "common and often abundant in boreal to hemiboreal sandy pine heath forests, but also occurs in pine forests on rocky ground, and sometimes in spruce forests mixed with pines"; fruiting from late August to late October, (Kytovuori(1) for northern Europe), in mesic to dry conifer forests with Pinus (pine) and maybe also with Picea (spruce), also described as being in sandy Pinus heath forests; fall, (Knudsen(1) for northern Europe), (Knudsen)