BRIEF DESCRIPTION: The cap of A. pausiaca is 60 mm wide, plane with a slightly depressed center, dry, with a finely sulcate-striate margin.  The cap is bister-olivaceous, darker and more fuscous in the center, innately streaked with darker fibrils, and more or less concentrically spotted with small grayish patches.

The gills are distantly free, crowded, and white.

The stem is 70 x 6 - 13 mm, solid, pale yellow-olivaceous, and clearer yellow near the apex.  The volva is present as olivaceous, small warts.

The spores measure 5.1 - 6.1 x 4.4 - 5.8 µm and are amyloid and globose to broadly ellipsoid.  Clamps were not observed at bases of basidia.

The present species was originally described from Peninsular Malaysia.