Clavariadelphus subfastigiatus V.L. Wells & Kempton
no common name
Clavariadelphaceae

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

Introduction to the Macrofungi

Photograph

© Kit Scates-Barnhart     (Photo ID #18971)


Map

E-Flora BC Static Map

Distribution of Clavariadelphus subfastigiatus
Click here to view the full interactive map and legend

Species Information

Chemical Reactions:
KOH stains forest green or yellow green, FeCl3 stains surface forest green to dark green
Odor:
negligible (Methven)
Taste:
bitter (Methven)
Microscopic:
spores 8.5-10.7(12) x 5.6-6.5 microns; basidia 84-112(131) x (7.5)8.5-11 microns; hyphae 3-9.5 microns wide, (Corner), spores 8-10 x 5-6 microns, broadly elliptic, broadly ovate or amygdaliform, smooth, inamyloid, pale yellow in KOH, thin-walled; basidia (2-)4-spored, 60-95 x 8-11 microns, clavate, clamped, sterigmata 6-9.5 microns long; leptocystidia scattered and scarcely projecting, 30-65 x 2.5-5 microns, "cylindric to narrowly clavate, at times apically or subapically branched", walls thin and smooth, contents amorphous, pale yellow in KOH, clamp connections uninflated; hymenium extending over the apex of the fruitbody; subhymenium rudimentary; hyphae of trama 3-12 microns wide, "more or less parallel to longitudinally interwoven basally, more loosely interwoven upward, radially interwoven beneath the subhymenium, uninflated or inflated (-16 microns), branched", walls thin or irregularly thickened to 1 micron wide, smooth, contents amorphous, pale yellow in KOH, clamp connections uninflated or inflated (-12 microns), sometimes medallion or ampulliform; gloeoplerous hyphae 2.5-8 microns wide, "arising from generative hyphae at clamp connections, scattered throughout the trama, more abundant downward, uninflated, inflated (-12 microns) or strangulated, branched", walls thin and smooth, contents amorphous, pale yellow in KOH, refractive under phase contrast, clamped, (Methven)
Spore Deposit:
white (Methven)

Habitat and Range

SIMILAR SPECIES
Clavariadelphus occidentalis has a cream pale orange to brown fruitbody, lack of staining reaction with KOH, and larger spores 10.5-14 x 6-7.5 microns. Clavariadelphus caespitosus has a pinkish cinnamon to pinkish lavender fruitbody with a subacute apex, lack of staining reaction with KOH, cespitose growth, and slightly larger spores (8-11 x 4.5-6.5 microns), (Methven). Clavariadelphus fasciculatus Methven & Guzman of Mexico has strongly fasciculate [bundled] growth, negative reaction with KOH, larger spores (11-13.5 x 5-6.5 microns), and "acerose- to acicular-shaped crystals encrusting the mycelial hyphae", (Methven). Clavariadelphus truncatus has a pinkish cinnamon to lavender-brown mature fruitbody with the sterile apex yellow-orange, orange or reddish, and blunt becoming truncate, excavated, or perforated (umbonate in var. umbonatus), cherry red to fire-engine red reaction of surface to KOH, sweet taste, and spores 9.5-13 x 5.5-7 microns.
Habitat
fasciculate in clusters of 6-20, on well-decayed humus of coniferous woods, (Corner), "Scattered to gregarious; terrestrial; duff; coniferous or mixed deciduous-coniferous forests", (Methven)

Synonyms

Synonyms and Alternate Names:
Endogone macrocarpa (Tul. & C. Tul.) Tul.
Endogone pampaloniana Bacc.