Pileus up to 6 cm. diameter, at first broadly convex, then plane, margin recurved; centre obtusely umbonate with an encircling depressed zone, sometimes umbilicate; brown or yellow brown in the centre, becoming pale brown outwards, shading off to pure white in the outer half; centre corrugated; the central half covered with minute distant brown warts, elsewhere glabrous; margin striate. Flesh thin, white, turning brownish when cut.
Stalk up to 10 cm. long, usually almost horizontal at the base and then curving upwards, up to 9 mm. diameter at the base, attenuated upwards and 5 mm. diameter at the apex; blackish brown, clothed with grayish flocci, becoming paler and longitudinally fibrillose towards the ring; longitudinally striate and reddish above the ring; solid, outer layers dark brown in section, inner tissue brownish white; in clusters of six to nine, arising from a cushion-like mass, each stalk surrounded at the base by a narrow, white, tomentose ring.
Ring, near the apex, dependent, ample, rather thick and floccose.
Gills white, rather crowded, narrow (3-4 mm. broad), decurrent, attenuated outwards.
Spores white, oval, or subglobose, smooth, 6-8 × 5-7 µm.
On roots of Acacia decurrens, which it kills. Mycelium between the wood and bark of the host plant in reddish plates. Rhizomorphs, 2-3 mm. diameter, at first reddish, then black. Uda Pussellawa, Ceylon.
SEE THE OTHERS WITH ONE CLIC.