Irish lichens

Leptogium cochleatum
Order: Peltigerales       Family: Collemataceae

Species: Leptogium cochleatum

Growth type foliose.
Photos: On hazel. Cathair Chomáin, the Burren, W Ireland.
BLS Burren meeting 2009

Large greyish-green thallus with wavy, convoluted, fine-ridged lobes. Sessile red-brown apothecia are usually present but isidia are absent. The spores are muriform, 20-35 x 12-16 µm.

Occurs mainly on trunks of Ash and Hazel in damp, shady woodland, also found on mossy rocks. Rare, most Irish records are from the Burren, Co. Clare.
Chemical reactions negative.

Leptogium cochleatum

Leptogium cochleatum

Leptogium cochleatum
Leptogium cochleatum. BLS Burren meeting, April 2009

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