Summary:
Distinctive characters are an arachnoid (web-like) more or less fleeting veil, interwoven cap tissue, and the lack of pleurocystidia, (Hesler). Other features include a convex, pale yellow or buff, non-viscid, radially streaky cap, adnate to slightly decurrent gills that are ochraceous at maturity, a fibrillose stem colored as the cap, and growth in tufts about the base of trees. The description is derived from Hesler(2).
Gymnopilus magnus has been found at least in BC, WA, and NY, (Hesler).
Cap:
10-15cm across, broadly convex; pale yellow or buff; not viscid, fibrillose and somewhat virgate [radially streaky], the margin commonly becoming rolled up when old
Flesh:
soft; whitish or yellowish, yellowish in stem
Gills:
adnate or slightly decurrent, close, about 0.6cm broad, often crisped and wavy toward stem; ochraceous at maturity (probably yellow when young)
Stem:
7.5-10cm x 1.6-2.4cm, equal or widened toward base, solid; colored as cap; fibrillose
Veil:
arachnoid (cobwebby), fleeting
Microscopic spores:
spores 7.5-10 x 5.5-7 microns, elliptic in face view, inequilateral or subamygdaliform [somewhat almond-shaped] in side view, "rough-warty, no germ pore, ferruginous in KOH, dextrinoid"; basidia (2-)4-spored, 27-38 x 6-7 microns, sometimes brown; pleurocystidia none, cheilocystidia 26-37 x 7-10 microns, "ventricose, usually with a neck and capitate, sometimes brown"; gill trama subparallel, hyphae 5-11 microns wide; cap trama interwoven, cuticle repent; cap and gill trama yellowish brown in KOH, reddish brown in Melzer''s, yellow pigment, soluble in KOH, present in gill trama; clamp connections present
Spore deposit:
[presumably somewhere from orange to rusty brown]
|
