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Naevia punctiformis (Ach.) A. Massal. =Arthonia punctiformis Ach.

Naevia punctiformis (Ach.) A. Massal.

=Arthonia punctiformis  Ach.

Synonyms:

Arthonia punctiformis  Ach



Family: ARTHONIACEAE

Habitat: Ubiquitous

Description

     Thallus very thin, immersed in bark, usually effuse, indistinct or slightly 'bleaching' the bark: whitish, pale grey, pale brown, prothallus absent. Apothecia scattered all over the thallus, usually immersed, flat and non erumpent, variable in size and shape, rounded, elliptic to linear, rarely branched or substellate, 0,2-1,2 mm, black, not pruinose. Ascospores colourless, oblong-ovoid to oblong, 3 (-5)-septate, apical cell not enlarged, 15-23 x 5-7 µm. Photobiont : Trentepohlia. Chemical spot test negative. Often a primary common colonizer on smooth bark of twigs of a wide variety of deciduous trees and shrubs. Often associated with Arthopyrenia punctiformis but with ascospores uni-septate. N.B. This species does not seem to have photobiont and probably is not lichenized.*





Naevia punctiformis (Ach.) A. Massal.
=Arthonia punctiformis Ach.

Arthonia punctiformis Ardennes 1
Jacques HAINE

Naevia punctiformis (Ach.) A. Massal.
=Arthonia punctiformis Ach.

Arthonia punctiformis Ardennes 2
Jacques HAINE

Naevia punctiformis (Ach.) A. Massal.
=Arthonia punctiformis Ach.

Arthonia punctiformis Ardennes 3
Jacques HAINE

Naevia punctiformis (Ach.) A. Massal.
=Arthonia punctiformis Ach.

Arthonia punctiformis Ardennes 4
Jacques HAINE

Naevia punctiformis (Ach.) A. Massal.
=Arthonia punctiformis Ach.

Arthonia punctiformis Spores
Jacques HAINE

Naevia punctiformis (Ach.) A. Massal.
=Arthonia punctiformis Ach.

Arthonia punctiformis (à droite blanchâtre) et Arthopyrenia punctiformis (à gauche grisâtre) sur branche de bouleau, Ardennes
Jacques HAINE

Naevia punctiformis (Ach.) A. Massal.
=Arthonia punctiformis Ach.

Arthonia punctiformis Spores dans le lugol.
Jacques HAINE



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