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LIAS light – Item Descriptions
LIASlight ItemID: 1306
Chaenotheca gracillima (Vain.) Tibell
Characters[*]: | Character States[*]: |
---|---|
global occurrence: | Africa (incl Madagascar) | Eurasia – Asia Extratropical | Oceania – Australasia | Eurasia – Europe | Americas – North America (incl Mexico) | Americas – South and Central America | Eurasia – Asia Tropical |
substrate: | wood – dead, living | bark, cork, plant surface – trunks, branches, twigs |
life habit: | lichenized (mutualistic with algal photobionts) |
thallus: | crustose (crustaceous) – endosubstratal, inconspicuous, immersed | leprose, leprarioid, powdery, byssoid | crustose (crustaceous) – episubstratal – unspecified |
thallus: | granular, granulose, granulate |
[th] upper surface: | grey(ish) green |
[th marginal and upper surface] specific structures: | absent |
[th] morphol substructures (eg areoles, lobes, branches) upper surface: | granulose, granular |
ascomata: | absent | present |
ascoma: | apothecial, apothecioid – mazaedial |
ascoma [mm]: | (low) 0.1 (high) 0.2 |
ascoma: | pedicellate, stipitate, pedunculate, stalked |
[ascm, if apoth] disc, mazaedium: | epruinose |
asci: | prototunicate |
[asc] tholus: | not thickened |
[asc] tholus amyloidity (iodine reaction): | absent |
[asp] shape: | globose, spherical | subglobose, subspherical |
[asp] length [µm]: | (low) 2.5 (high) 3.5 (max) 4.0 |
[asp] width [µm]: | (low) 2.5 (high) 3.5 (max) 4.0 |
[asp] septa: | absent – spore lumen unilocular, monolocular |
[asp] pigmentation: | pale brown |
[asp] perispore, epispore: | not apparent | ornamented, rough, warted, striate, cracked |
secondary metabolites: | absent |
primary photobiont: | present |
secondary photobionts (eg in cephalodia): | absent |
primary photobiont: | chlorophytaceous – trebouxiaceous, chlorococcoid |