Sporangia:- sessile gregarious, crowded, globose to 1mm diameter, often forming a pulvinate colony.
Outer layer of Peridium calcerous, fragile, rough, breaking away readily and distorted by pressure. Inner layer blue irredescent and remote from outer.
Columella:- small white, often lacking not always obvious.
Capillitium:- sparsely branched with few anastomoses, dark, fading toward the tips.
Spores:- Dark on mass and finely spiny, lighter by transmitted light.
Diderma crustaceum is listed in the following regions:
No sightings currently exist.
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