Dirina massiliensis f massiliensis Roccellaceae
Dirina massiliensis f. massiliensis

Growth type crustose
Thallus K-, C+ red, KC+ red, P-, UV-. Medulla K-, C-, P-, UV+ pale yellow
BLS conservation evaluation: NT NS

This is the fertile form of Dirina massiliensis f. sorediata. The apothecia are +/- sessile, the discs white-grey to dark grey and white-pruinose. Asci are 8-spored, the spores 3-septate, 20-24 x 4-6 Ám, fusiform and often curved. Microscope photograph below.

Similar: Dirina fallax was only recently separated from Dirina massiliensis and only occurs on siliceous and acid rocks. It is thought to probably be widespread in western areas


Dirina massiliensis f massiliensis

Dirina massiliensis f massiliensis

Dirina massiliensis f massiliensis

Microscope photograph
Dirina massiliensis f massiliensis
Dirina massiliensis f massiliensis
On chert and limestone, Portland, Dorset. February 2016

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