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(Map updated: 11 August 2009)

The thallus of this common pollution-tolerant lichen is a crinkled mat of bright green scales (squamules). From here arise battalions of green-grey stalks (podetia), each tapering to a point sometimes becoming twisted into the shape of a bent nail or question mark. The stalks are scaly and incised below remaining finely powdery above. On rotting tree stumps, logs and mossy tree bases.

Key characteristics

• Habitat of rotting stumps and mossy tree bases
• Grey-green stalks resembling bent nails usually tapering to a fine point.

Original text submitted by Vince J. Giavarini