SPOROCARPS: scattered, cylindrical, simple, branched or netted, 0.3 to 0.5 mm. diam., attached by a narrow base, or confluent and applanate, mottled yellow, orange, red, or brown, or entirely red; sporangial wall membranous, stouter and persistent below, yellow, with closely set deposits of lime, marked with the bases of the calcareous parts of the capillitium.

CAPILLITIUM: a dense, elastic network of rigid, yellow threads with many pointed branchlets or spines, and surrounding numerous, large, angular, branching or irregular, white or yellow nodules composed of lime-granules, which are usually flattened, or often formed as flattened plates transversely placed; the capillitium delicately attached to the sporangial wall or its lime-deposits, so that it becomes detached eventually as an entire mass.