LiasLight

LIAS light – Item Descriptions


LIASlight ItemID: 3757

Micarea olivacea Coppins

Characters[*]:Character States[*]:
global occurrence: Eurasia – Europe
substrate: wood – dead, living | rock, stones, pebbles – unspecified
life habit: lichenized (mutualistic with algal photobionts)
thallus: crustose (crustaceous) – endosubstratal, inconspicuous, immersed
thallus: compartimentized – areolate, squamulate
[th] upper surface: grey(ish) | green(ish) grey
[th marginal and upper surface] specific structures: absent
ascomata: absent | present
ascoma: apothecial, apothecioid – hymenial
ascoma [mm]: (low) 0.1 (high) 0.25
[ascm, if apoth] disc, mazaedium: convex
[ascm, if apoth] margin excipular photobionts: absent
[ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: green(ish) brown (olive brown)
[ascm] paraphyses/-oids: present
[ascm] paraphyses/-oid cells width [µm]: (low) 1.0 (high) 1.5
[ascm] paraphyses/-oid apical cells width [µm]: (min) 2.0
asci: lecanoralean
[asc] tholus: thickened
[asc] tholus amyloidity (iodine reaction): present
[asc] tholus amyloidity pattern: with amyloid tube, ring (= Collema-, Micarea-, Porpidia-, Psora-types etc)
ascospores: (median) 8.0
[asp] shape: ovoid, ovate
[asp] length [µm]: (min) 7.0 (low) 9.0 (high) 12.3
[asp] width [µm]: (low) 2.5 (high) 3.5
[asp] septa: absent – spore lumen unilocular, monolocular | present
[asp] septa: transversely septate
[asp] transversal septa: (min) 0.0(median) 1.0
[asp] pigmentation: hyaline, colourless
[asp] perispore, epispore: not apparent
conidiomata: absent | present
conidia: cylindrical
[co] length [µm]: (low) 3.0 (high) 4.5
primary photobiont: present
secondary photobionts (eg in cephalodia): absent
primary photobiont: chlorophytaceous – trebouxiaceous, chlorococcoid

[*] Not all (synonymous, equivalent or similar) terms being provided in parallel for a character or character state (e.g. 'endosubstratal, inconspicuous, immersed') need to be valid for the taxon under concern.


© 2001–2021 by Botanische Staatssammlung M√ľnchen
Impressum · Disclaimer · Webmaster