Arcyria versicolor

Arcyria versicolor Phill. Grevillea 5: 115. 1877
Arcyria vitellina Phill. Grevillea 5: 115. 1877.
Sporangia crowded, stalked to nearly sessile, obpyriform, their total height 2-3.5 mm. before dehiscence, 1-2 mm. broad; peridium iridescent, olivaceous-yellow, clear yellow, or reddish to olivaceous-brown, dehiscent near the apex, the bulk of the membrane persisting as a deep, lobed, cup-like base; stalk strandlike, weak, filled with spore-like cells, usually rather short, sometimes a mere point, arising from a prominent, venulose hypothallus; capillitium strongly elastic, concolorous, scarcely attached, the threads 5-6 ft in diameter, spinulose or spiny-reticulate, rarely with faint bars ; spores yellow to olivaceous-brown or dull red in mass, pale ochraceous by transmitted light, minutely spiny, 9-1 1 ft in diameter.
Typb w>camty: California.
Habitat: Dead coniferous wood.
Distribution: South Dakota, Wyoming, Colorado, Idaho, Washington, Oregon,