Cyathus striatus

fluted bird's nest

Names across languages

From the latest record: 2025-10-11.

Gleba lining inner surfaces of peridium, peridioles are attached by funiculi cords and dispersed by splash mechanism

Small cup- or urn-shaped nest, inner surface with distinct vertical striations, outer surface hairy or tomentose

Disc-shaped, ~1–1.5 mm wide, occasionally up to 2 mm, sometimes encased in thin tunica membrane

A structural hyphal cord with ballooned purse, coiled cord, basal and middle portions.

Spore print white

Saprobic on woody debris, mulch, forest litter, woodchips, tends to cluster, summer to early winter

Inedible

Fruit body size ~7–10 mm tall, ~6–8 mm wide

Cup diameter ~6–8 mm

Insignificant

Spores ~15–20×8–12 µm, ellipsoid, smooth, hyaline, with a notch, basidia clavate and sessile, 4-spored

Fungus with miniature cup fruit bodies that resemble tiny nests filled with lens-shaped peridioles

1787). Fl. Berol. Prodr.: 399.

Kadrioru park, Tallinn, Harju, Eesti

Urban park, under oaks, in clay-rich soil with decaying wood, leaves and grass remains

59°26'23.3"N 24°47'42.6"E

🌡️ 12°C 🌤️ Scattered clouds 💨 Wind 310° NW->SE, 26 km/h