Gyalectidium setiferum  Vezda & Sérus.

     Thallus crustose, oval to circular 0.2-0.3 mm in diameter but may give by union a thallus (Hyphophore) of leprous aspect of 0.5 to 4 mm in its greatest length, membranous with a granular surface, greyish by dry weather and greenish-gray to greenish in wet weather, becoming whitish by crystals when drying in a herbarium, concolorous membranous prothallus if present. This thallus is covered with hyaline cilia with a darker end of 0.3-0.5 mm in length, formed of elongated hyaline hyphae, these cilia are grouped in small tufts on a conidial mass formed of monoliform hyphae strongly constricted at the septa and of greenish gray color sometimes tinged with orange, these monoliform hyphae retain the spherical green algae probably Chloroccaceae and will give by fragmentation conidia which will ensure the propagation. Apothecia unknown. Negative colored chemical reactions. Thermophilic leaf species coming in the shade on the permanent leaves of: Buxus, Abies, Laurus, etc. in humid hyperoceanic forests. N.B. Some authors believe that the current spread of this species is favored by global warming!