LIAS light – Item Descriptions
LIASlight ItemID: 4445
Pertusaria albescens (Huds.) M. Choisy & Werner var. albescens
| Characters[*]: | Character States[*]: |
|---|---|
| global occurrence: | Eurasia – Europe | Americas – North America (incl Mexico) | Arctic |
| substrate: | bryophytes – mosses, liverworts | bark, cork, plant surface – trunks, branches, twigs | rock, stones, pebbles – unspecified |
| life habit: | lichenized (mutualistic with algal photobionts) |
| thallus: | crustose (crustaceous) – episubstratal – unspecified |
| thallus: | continuous, diffuse, effuse | cracked, fissured, fractured, rimose |
| [th] upper surface: | grey(ish) | yellow(ish) grey | white(ish) grey |
| [th upper surface]: | epruinose |
| [th marginal and upper surface] specific structures: | 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: | allo-pertusaric acid | dihydropertusaric acid |
| primary photobiont: | present |
| secondary photobionts (eg in cephalodia): | absent |
| primary photobiont: | chlorophytaceous – trebouxiaceous, chlorococcoid |