Bacidia phacodes Ramalinaceae
Bacidina phacodes (Bacidia phacodes)

Growth type crustose
Chemical results: Hymenium, upper part K +/- yellow

Can be frequent on basic or nutrient-rich bark of shaded, mature trees.

Smooth, warted or scurfy, whitish to grey-green thallus. Apothecia flat to convex, discs beige or pink-orange, the margins usually paler. Hypothecium colourless. Spores 3-7 septate, 20-45 x 1.5-2 Ám. Pycnidia are immersed, conidia 25-50(-60) x 1-1.5 Ám, septate. Microscope photograph below.

Similar: Bacidia delicata and Bacidia rubella.
Lecania chlorotiza and L. cyrtellina have 0-1 septate spores.

Bacidia phacodes

Bacidia phacodes

Microscope photograph
Bacidia phacodes
Bacidia phacodes
Studland, Dorset. November 2013

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