 
	    LIAS light – Item Descriptions
LIASlight ItemID: 4788
| Characters[*]: | Character States[*]: | 
|---|---|
| global occurrence: | Africa (incl Madagascar) | Oceania – Australasia | Eurasia – Europe | Americas – North America (incl Mexico) | Americas – South and Central America | Arctic | 
| substrate: | rock – siliceous, siliciferous, acidic | rock, stones, pebbles – unspecified | 
| life habit: | lichenized (mutualistic with algal photobionts) | 
| thallus: | crustose (crustaceous) – episubstratal – unspecified | placodioid-crustose, placodioid-foliose | 
| thallus: | cracked, fissured, fractured, rimose | compartimentized – areolate, squamulate | 
| [th] upper surface: | white(ish) | white(ish) brown (beige) | 
| [th marginal and upper surface] specific structures: | absent | present | 
| [th margin] cilia, cilioid structures: | absent | 
| [th upper surface] isidia, isidioid structures: | absent | 
| [th upper surface] soredia, soralia, soralioid structures: | present | 
| ascomata: | absent | 
| secondary metabolites: | present | 
| secondary metabolites: | gyrophoric acid | lecanoric acid | 
| primary photobiont: | present | 
| secondary photobionts (eg in cephalodia): | present | 
| primary photobiont: | chlorophytaceous – trebouxiaceous, chlorococcoid |