Small World Discoveries
by Tony Enticknap - tickspics
Taking a close look at insects and other small species that can be found in and around East Dorset and the New Forest ...
ASCOMYCOTA | LECANOROMYCETES > LECANORALES > Lecanoracea
Genus Lecanora, meaning 'beautiful small bowl' - from the shape of the apothecia
Â
Common name:Â Â Â Â Â Â Â Â Â Â Â Members of the genus collectively known as a 'rim lichens'
Synonyms:Â Â Â Â Â Â Â Â Â Â Â -Â Â Â Â Â Â Â Â
Primary habitat:Â Â Â Â Â Â Â Â Â Â Â Urban (for this entry), but also coastalÂ
Usual substrata:           Stone and rock Â
Growth forms:             Saxicolous    Â
Thallus:                 Crustose                  Â
Apothecia:                   Lecanorine               Â
BLS identity rating: Graded 2/5 (visual identification relatively easy with care)
Thallus usually forming roughly circular patches, to around 10cm dia., can be warty or areolate; dullish white, pale green or grey-greenish, fimbriate although sometime inconspicuous white prothallus; apothecia numerous, usually crowded towards the centre, sessile, up to 1.5mm dia., disc flat to slightly convex, smooth, brown-red to chestnut, often blackish when old, thalline margin white, smooth, but becoming twisted or distorted, with small irregular crystals.
Very common on both basic to calcareous substrata, as well as nutrient-enriched siliceous rocks, both inland and coastal, but also on walls, concrete, mortar, and asphalt driveways in urban areas.
Three Legged Cross (garden), East Dorset
(on a concrete coping tile of a low-level wall)
Three Legged Cross (garden), East Dorset
(on a concreate coping tile of a low-level wall)
Three Legged Cross (garden), East Dorset
(on a concrete coping tile of a low-level wall)
Three Legged Cross (garden), East Dorset
(on a concrete coping tile of a low-level wall)
