Irish lichens

Gyalecta jenensis
Order: Gyalectales       Family: Gyalectaceae

Species: Gyalecta jenensis

Growth type crustose.
Photos: On limestone. Black Head, the Burren, W Ireland.
BLS Burren meeting 2009

Thin light-grey thallus, often pink-tinged. Distinctive pale orange apothecia with thick notched margins are initially spherical. The asci are 8-spored and the spores are hyaline, 3-septate to muriform when mature, with 3-6 transverse septa and 1-2 longitudinal septa, (11-)15-25(-40) x 6-10(-16) Ám.

Found on damp, shaded limestone, also on old church walls.
Chemical reactions negative.

Similar: Gyalecta truncigena, found on basic-barked trees.

Gyalecta jenensis

Gyalecta jenensis
Gyalecta jenensis. BLS Burren meeting, April 2009

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