SPOROCARPS: cylindric, arcuate, 1.5 mm. high when unexpanded, closely clustered, dull crimson, stipitate.
PERIDIUM: evanescent except here and there a persistent patch, the calyculus shallow, plicate, papil- lose within.
STALK: short, weak, concolorous ; hypothallus distinct, mem-branous, concolorous.
CAPILLITIUM: capillitium a loose; far-expanding, elastic net, the meshes uneven, often small, the threads characterized by much irregularity and many bulbose thickenings, especially at the nodes, strongly spinulose throughout.
SPORES: spore-mass crimson or reddish brown, dull ; spores by transmitted light colorless, nearly smooth, sub-globose, 9-10 µm diam.
PLASMODIUM: White.
HABITAT: On dead wood.
SPORANGIA: Total height 5 to 20 mm. Sporangia cylindrical, obtuse, stalked, brownish purple or almost black, usually in large clusters, sometimes scattered.
PERIDIUM: membranous, persistent, purplish in the lower part, occasionally mottled with darker shades.
STALK: black, shining, 1 to 4 mm. high, rising from a brown, membranous hypothallus.
COLUMELLA: reaching nearly to the top of the sporangium.
CAPILLITIUM: of dark brown threads springing from all parts of the columella, combined into a loose network, the ultimate branches forming a delicate smooth or spinose surface-net with angular, unequal meshes, varying from 6-16 µm wide.
SPORES: grayish violet or brownish violet, 6-8 µm in diameter, faintly or strongly spinulose, the spines arranged in a more or less reticulate pattern.
PLASMODIUM: White
HABITAT: On dead wood.