Irish lichens

Catillaria lenticularis

Order: Lecanorales       Family: Catillariaceae

Species: Catillaria lenticularis

Growth type crustose
Photos: Coachford old cemetery, Co. Cork, SW Ireland.
Identification confirmed by John Douglass

Thin or immersed whitish, beige or pale brown thallus. Numerous grouped or scattered apothecia, reddish to dark brown, often +/- immersed. Spores are 1-septate, 7-10(-12) (2-)2.5-3.5(-4) m. Paraphyses with dark swollen tips. Photobiont is Dictyochloropsis. Micrographs below. Chemical results negative

Common on limestone, calcareous rocks and building materials.

Similar: Catillaria chalybeia is found on siliceous rocks


Catillaria lenticularis

Catillaria lenticularis

Micrographs
Catillaria lenticularis

Catillaria lenticularis
Catillaria lenticularis . April 2012

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