BRIEF DESCRIPTION: The following is largely based on the original description (Wood 1997).

The cap of Amanita chlorophylla is up to 90 mm wide, convex then plane, smooth, dry, dull white to pallid cream, with a slight but distinct greenish tint, with a nonstriate and appendiculate margin.  Volval remains are present as fairly large, flat, soft, membranous scales, cream to warm buff.

The gills are free, thin, crowded, bright to grayish lime-green, with a paler to almost white edge.  The short gills are present in at least one or two series.

The stem is up to 120 × 15 mm, firm, off-white to pale green with fine fibrils covering most of it.  The ring is fragile and often present in fragments, fragile, submembranous, originally skirt-like, warm buff or green, and not striate on the upper surface.  The base is bulbous to ellipsoid to top-shaped, with no volva, but with warm buff colored zones on the upper portion.  [Wood mentions scatters bands on the lower portion on the stem but does not state whether they represent the volva and does not provide a color for them.]

The spores measure 9.3 - 11.4 (-11.7) × 5.4 - 6.6 (-6.9) µm and are elongate and amyloid.  Clamps are frequent at bases of basidia.  The spore print is said to be clearly greenish; however, the possibility that the green tint is due to deciduous material from the edge of the gills is not explored.

Originally described from the state of New South Wales, Australia, in association with Allocasuarina littoralis and also occuring in "tall open forests."

We concur with Wood's placement of the present species in Bas' stirps Grossa.

For comparison and discussion, see Amanita austroviridis O. K. Mill.