Cyathus Striatus

(Family: Nidulariaceae)
bird's nest fungi
Cyathus Striatus
by: klair


The Nidulariaceae has a gasteriod fruiting body, meaning that the spores develop internally, in an angiocarp. Fruiting bodies are typically gregarious (growing together in groups, but not joined together). Young fruiting bodies are initially covered by a thin membrane that dehisces irregularly or by a circumscissile split, in a circular line around the circumference of the cup opening. Fruiting bodies (also called peridia) are small, generally between 5–15 mm wide and 4–8 mm high, urn- or vase-shaped, and contain one to several disc-shaped peridioles that resemble tiny eggs.

Pileus (Cap) / Gill:

  • none Shape: None
  • none Decorations: None
  • none Gill attachment: None
  • No decurrent tooth
  • none Gill spacing: None


  • none Shape: None
  • none Base: None
  • none Annulus: None


Grows on plant material/manure

A white membrane covers the grey, spore-containing eggs in the bud and early stages. When it rains, the drops of water may land in the cup and dislodge the tiny eggs, propelling them out of the nest. They then attach themselves by fine threads to twigs, stumps and organic debris and later germinate.


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  • Miller HR, Miller OK. (1988). Gasteromycetes: morphological and developmental features, with keys to the orders, families, and genera. Eureka, Calif: Mad River Press. ISBN 0-916422-74-7.