BRIEF DESCRIPTION: All information is taken from Corner and Bas (1962). This species was named for the lark because of the variegated brown cap.

The cap is 30 mm wide, sepia or pale purplish umber to mouse-colored (darker over the stem) and streaked by innate dark fibrils (especially near the margin), smooth, and viscid. Its flesh is white.

The gills are free, crowded, white then cream, 3 mm broad, and number about 65. The short gills are attenuate and are unevenly distributed, with at most one between a given pair of adjacent gills.

The stipe if 55 x 5 mm, cylindric, white, smooth, firm, solid, and has a bulbous base 8 - 9 mm wide. The annulus is apical and about 8 mm wide, white, pendant, membranous, finely striate above, and soon collapses on the stipe. The limbate volva is membranous, about 10 mm high, free for about half its height, white, and splits into irregular lobes.

The spores from dried material measure 7.1 - 8.4 (-9.2) x 6.3 - 8.3 µm (from fresh material, 9.0 - 11.0 x 8.0 - 10.0 µm) and are globose to subglobose and amyloid. Clamps were not observed at the bases of basidia.

Amanita alauda was originally described from Singapore.