LIAS light – Item Descriptions
LIASlight ItemID: 7752
Usnea praetervisa (Asahina) P. Clerc
| Characters[*]: | Character States[*]: |
|---|---|
| global occurrence: | Eurasia – Asia Extratropical | Eurasia – Europe | Americas – North America (incl Mexico) |
| substrate: | bark, cork, plant surface – trunks, branches, twigs |
| life habit: | lichenized (mutualistic with algal photobionts) |
| thallus: | fruticose (fruticous), shrub-like, beard-like |
| thallus: | continuous, diffuse, effuse |
| [th] upper surface: | yellow(ish) green | green(ish) yellow |
| [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 | present |
| [th upper surface] soredia, soralia, soralioid structures: | present |
| [th] morphol substructures (eg areoles, squamules): | distantly discontiguous |
| [th] morphol substructures (eg lobes, branches): | isotomic-dichotomous | anisotomic-dichotomous |
| ascomata: | absent |
| secondary metabolites: | present |
| secondary metabolites: | norstictic acid | usnic acid |
| primary photobiont: | present |
| secondary photobionts (eg in cephalodia): | absent |
| primary photobiont: | chlorophytaceous – trebouxiaceous, chlorococcoid |