Each areola has a single sunken black, dust covered ( pruinose ) fruiting body ( apothecium ) with a white rim.
12.
The gills are narrow but become pruinose ( as if covered with a fine white powder ), but it later becomes smooth.
13.
The basal disc is grooved ( from gill impressions ) and pruinose or covered with fine minute hairs, but soon becomes smooth.
14.
Non-pruinose males and females have a metallic-green or brown thorax and abdomen; the thorax has yellow antehumeral stripes.
15.
In dried specimens, the non-glandular portion of the inner surface is bluish and pruinose and may or may not be spotted.
16.
It is resupinate, forming a very thin structure which is white, pruinose ( flour-like dusting ) or chalky in appearance.
17.
It is very distinctive with a very broad flattened abdomen, four wing patches and, in the male, the abdomen becomes pruinose blue.
18.
The surface is densely white-pruinose initially, but soon becomes naked with a subsequent color shift to orange-yellow or lemon yellow.
19.
Mature males, however, have a bright pruinose-blue colouring on the collar, between the wings and on the last two segments of the abdomen.
20.
It usually does not have a coating of fine dustlike particles ( pruinose ), but sometime may, especially at the margins, especially where the sinuses are folded.
