LiasLight

LIAS light – Item Descriptions


LIASlight ItemID: 7534

Pertusaria islandica Lynge

Characters[*]:Character States[*]:
global occurrence: Africa (incl Madagascar) | Eurasia – Asia Extratropical
substrate: soil, clay, humus, turf, detritus, dead leaves
life habit: lichenized (mutualistic with algal photobionts)
thallus: crustose (crustaceous) – episubstratal – unspecified | squamulose (squamulous)
thallus: compartimentized – areolate, squamulate
[th] upper surface: brown(ish) yellow (ochraceous, ochre)
[th marginal and upper surface] specific structures: absent
[th] morphol substructures (eg areoles, lobes, branches) width [mm]: (low) 0.6 (high) 2.5
[th lower surface] specific structures: present
[th lower surface] rhizines, rhizoid structures: present
[th lower surface] rhizines, rhizinoid structures: fasciculate
ascomata: absent | present
ascoma: apothecial, apothecioid – hymenial
ascoma [mm]: (low) 0.6 (high) 0.8 (max) 1.0
ascoma: immersed, innate | subsessile, subimmersed, adnate, semi-immersed, emergent
[ascm, if apoth] disc, mazaedium: plane, flat, flattened, expanded
[ascm, if apoth] disc, mazaedium: red(dish) | red(dish) black
[ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: hyaline, colourless
[ascm] paraphyses/-oids: present
[ascm] paraphyses/-oid cells width [µm]: (low) 1.5 (high) 2.0
[ascm] paraphyses/-oid apical cells width [µm]: (low) 3.0 (high) 3.5
[ascm] epihymenium, epithecium: red(dish) brown (pale: orange brown)
asci: prototunicate
[asc] tholus: not thickened
ascospores: (median) 8.0
[asp] shape: ellipsoidal
[asp] length [µm]: (low) 14.7(median) 17.4 (high) 20.1
[asp] width [µm]: (low) 6.9(median) 7.5 (high) 8.1
[asp] septa: absent – spore lumen unilocular, monolocular
[asp] pigmentation: hyaline, colourless
[asp] perispore, epispore: not apparent
conidiomata: absent | present
conidia: bacilliform, bacillar
[co] length [µm]: (low) 3.0 (high) 3.5
secondary metabolites: absent
primary photobiont: present
secondary photobionts (eg in cephalodia): absent
primary photobiont: cyanobacterial

[*] 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.


© 2001–2024 by Botanische Staatssammlung München
Impressum · Disclaimer · Webmaster