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Habitats
Oceanic zone
Non-lichenized fungi
Macaronesia
Ubiquitous
Littoral zone
Sub-montane
Mesic supralittoral zone
Aerohaline zone
Undetermined
Mediterranean
Montane
Xeric supralittoral zone
Pyrenula macrospora forma
Pyrenula macrospora forma
Synonyms:
Family: PYRENULACEAE
Habitat: Oceanic zone
Description
This form differs from the type, to which it is linked by intermediaries, by the formation of mosaics of thalli separated by a black ridge bordered by black pycnidia, which gives a "seam" appearance.
Cylindrical asci, I-, 125-135 x 12-18 µm according to our measurements.
Elliptical spores, brown-grey with 4 (6) diamond-shaped locules, 20-40 x 8-12 µm according to our measurements.
Globular pycnidia with a more or less flattened apex, black with an onion-shaped chamber.
Colorless conidia, filiform, curved, 10-16 x 1 µm.
Form occurring on deciduous trees with smooth bark in areas with little sun and humidity (and as a curiosity often with
Lecidella elaeochroma
).
Pyrenula macrospora forma Crozon 1
Bernard BOUFFINIER
Pyrenula macrospora forma sur Corylus Crozon 1
Bernard BOUFFINIER
Pyrenula macrospora forma sur Corylus Crozon 2
Bernard BOUFFINIER
Pyrenula macrospora forma sur Corylus Crozon 3
Bernard BOUFFINIER
Pyrenula macrospora forma Lesteven 1
Bernard BOUFFINIER
Pyrenula macrospora forma Lesteven 2
Bernard BOUFFINIER
Pyrenula macrospora forma avec Lecidella elaeochroma Saint-Julien 1
Bernard BOUFFINIER
Pyrenula macrospora forma sur Corylus Crozon 4
Jacques HAINE
Pyrenula macrospora forma sur Corylus Coupe périthéce Crozon 5
Jacques HAINE
Pyrenula macrospora forma sur Corylus Pycnide Crozon 6
Jacques HAINE
Pyrenula macrospora forma sur Corylus Pycnides Crozon 7
Jacques HAINE
Pyrenula macrospora forma sur Corylus Asque KOH Crozon 8
Jacques HAINE
Pyrenula macrospora forma sur Corylus Asque Bleu Coton Crozon 9
Jacques HAINE
Pyrenula macrospora forma sur Corylus Asque Lugol Crozon 10
Jacques HAINE
Pyrenula macrospora forma sur Corylus Spores KOH Crozon 11
Jacques HAINE
Pyrenula macrospora forma sur Corylus Spores Bleu Coton Crozon 12
Jacques HAINE
Pyrenula macrospora forma sur Corylus Conidies Crozon 9
Jacques HAINE
Pyrenula macrospora forma sur Corylus Conidies Crozon 14
Jacques HAINE
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