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

Hypholoma sublateritium (Fr.) Quel.

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

Introduction to the Macrofungi

© Michael Beug  Email the photographer   (Photo ID #18065)

E-Flora BC Static Map
Distribution of Hypholoma sublateritium
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Species Information

features include brick-colored to bay, dry cap with lighter margin, crowded, narrow gills that are whitish then greenish-tinted then purplish brown, long stem that is pale yellow to whitish in upper part and ochraceous to reddish brown in lower part, and growth in tufts on or near old deciduous trunks and stumps; the online Index Fungorum, accessed October 10, 2012, synonymizes most but not all of the forms and varieties of Hypholoma sublateritium with Hypholoma lateritium (Schaeff.) P. Kumm.; H. sublateritium reported at least from BC by Lowe(1), Davidson(1), and by Hardy in Victoria Naturalist 10(7):82-83 1954, one collection from BC at Pacific Forestry Centre, very common throughout central and eastern United States, but rare west of the Great Plains; Smith(25) examined collections from NS, ON, QC, AL, IN, MD, MI, NC, NJ, NY, OH, PA, TN, also found Europe, Breitenbach(4) give distribution as North America, Europe, Asia
2-8(10)cm across, obtuse when young, becoming broadly convex or flat, sometimes with a low obtuse umbo, at times the margin uplifted when old, margin inrolled at first; more or less brick-red with a paler margin, gradually fading to cinnamon, sometimes yellowish where bruised and at times entirely yellow when buried under leaves; moist, at first covered by a thin, canescent [hoary], appressed whitish-fibrillose coating and dotted here and there by scattered patches of yellowish veil fibrils, often bald when old on disc, margin "cottony-tomentose at first, with a pallid to pale yellowish appendiculate zone from the broken veil", (Smith(15)), 3-8cm across, convex to nearly flat, slightly umbonate at times; latericeous [brick-colored] to bay, margin cream-colored to ochraceous; dry, smooth, bald, (Murrill), 4-10cm across, convex to expanded with inrolled margin; deep brick red, paler and more ocher at margin; smooth, dry, (Phillips), often with paler veil remnants at margin (Kibby), 2.5-10cm across, "convex, becoming broadly convex to nearly flat"; brick red with yellow-orange at or near margin; moist or dry, smooth, with scattered yellowish fibrils, (Bessette)
thick, about 1cm at disc, firm; pallid brownish, sometimes staining yellowish where bruised, (Smith(15)), white or nearly so, becoming yellow when old, (Murrill), firm; cream, (Phillips), thick, firm; "dull yellow to pale yellowish brown", (Bessette)
bluntly adnate and readily seceding, close but not crowded, 48-55 reaching stem, broadest 0.6-0.7cm at point of attachment, equal to the abruptly narrowed outer end, 3-5 tiers of subgills; white to pallid whitish, sometimes yellowish to olivaceous, "becoming clouded gray and finally dark purple-gray from spores"; edges even, (Smith(15)), "adnate, sometimes rounded, sometimes slightly decurrent", crowded, narrow, thin; whitish or pale yellow, becoming greenish, and finally purplish brown from spores, (Murrill), cream-colored to light yellow when young, later gray-brown to olive-brown, (Breitenbach), adnate, somewhat rounded, sometimes slightly decurrent, crowded, narrow; whitish or pale-yellow, becoming greenish and finally purplish-brown from ripening spores, (Murrill), adnate, crowded, narrow; pallid to purple-gray when mature (Phillips), attached, close, narrow; "whitish to pale greenish yellow, becoming purplish gray to purple-brown at maturity, not staining when cut or bruised", (Bessette)
5-9cm x 0.5-1cm, equal, solid; pallid watery gray when young, white overall, soon staining yellowish and finally rusty brown from base up; appressed-fibrillose below the fibrillose ring zone left by the broken veil, at times almost fibrillose-scaly toward base, top silky to pruinose, (Smith(15)), 5-12cm x 0.5-1.2cm, more or less equal, thick, firm, stuffed or hollow; stramineous in upper part, ochraceous or reddish in lower part; bald or slightly fibrillose, with a arachnoid [cobwebby] ring when young, which becomes conspicuous from dark spores, (Murrill), 5-10cm x 0.5-1.5cm, whitish cream in upper part, reddish yellow in lower part, often staining slightly yellow, with slight ring zone at top, (Phillips), 5-10cm x 0.6-1.5cm, equal, hollow when old; "pale yellow to whitish above the ring, dull brown or grayish below, covered with reddish brown fibrils", (Bessette)
cap margin with a pallid to pale yellowish appendiculate zone from broken veil, fibrillose ring zone left on stem by broken veil, (Smith(15)), "partial veil fibrous to cortinate, leaving a sparse superior ring or annular zone", (Bessette)
none (Smith(15)), pleasant (Phillips), not distinctive (Bessette), pleasantly fungoid, (Breitenbach)
mild to bitterish (Smith(15)), mild to bitter (Phillips, Bessette), usually somewhat bitter or astringent, not distinctive, (Breitenbach)
Microscopic spores:
spores 6-7.5 x 3.5-4 microns, smooth, with an obscure germ pore; basidia 4-spored, 17-20 x 5-7 microns; pleurocystidia "scattered to abundant, more or less embedded in hymenium", 24-36 x 10-15 microns, fusoid-ventricose to mucronate, "when revived in KOH usually containing a highly refractive amorphous body", cheilocystidia 26-34 x 7-9 microns, "fusoid-ventricose with obtuse to subcapitate apices", (Smith(15)), clamp connections mentioned for cap cuticle and basidia, (Breitenbach), spores 7-8 x 4 microns, elliptic, smooth, purplish-brown (Murrill), spores 6-7 x 4-4.5 microns, elliptic with indistinct apical germ pore, (Phillips), spores 6-7 x 3.5-4.5 microns, elliptic, smooth, with apical germ pore, (Bessette)
Spore deposit:
purple-brown (Phillips, Bessette), "dark vinaceous gray" or "deep slaty brown" (Smith(15), colors from Ridgway(1)), purple-gray (Miller)

Habitat / Range

cespitose [in tufts] to subcespitose on or around old stumps, particularly oak, (Smith(15)), generally cespitose on or about old trunks or stumps of hardwood trees in fall, (Murrill), "in clusters on hardwood logs and stumps", August to October, (Phillips), "in dense clusters or scattered on hardwood stumps and logs", August to October, (Bessette), summer, fall

Synonyms and Alternate Names

Hypholoma lateritium (Schaeff.) Quel.
Hypholoma perplexum Sacc.
Naematoloma sublateritium (Fr.) P. Karst.

Taxonomic and Nomenclatural Links

Additional Range and Status Information Links


in European literature has been reported as poisonous, but like many Canadian and American investigators, Smith ate and enjoyed it with no ill effects, (Smith(15)), with caution (Phillips), edible (Bessette), poisonous, (Courtecuisse)

Additional Photo Sources

Related Databases

Species References

Smith(15) (as Naematoloma), Watling(3), Murrill(6) (as Hypholoma lateritium), Phillips(1)*, Kibby(1)*, Courtecuisse(1)*, Bessette(2)*, Barron(1)*, Miller(14)*, Breitenbach(4)*, Smith(25) (as Naematoloma), Lowe(1), Davidson(1)

References for the fungi

General References