LiasLight

LIAS light – Item Descriptions


LIASlight ItemID: 1771

Collema undulatum Laurer ex Flot.

Characters[*]:Character States[*]:
global occurrence: Eurasia – Europe | Americas – North America (incl Mexico) | Arctic
substrate: soil, clay, humus, turf, detritus, dead leaves | rock – calcareous, calciferous, basic
life habit: lichenized (mutualistic with algal photobionts)
thallus: foliose (foliaceous), leaf-like
[th marginal and upper surface] specific structures: absent
ascomata: absent | present
ascoma: apothecial, apothecioid – hymenial
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)
[asp] shape: ellipsoidal
[asp] length [µm]: (low) 17.0 (high) 30.0
[asp] width [µm]: (low) 6.5 (high) 9.0
[asp] septa: present
[asp] septa: transversely septate
[asp] transversal septa: (median) 3.0
[asp] pigmentation: hyaline, colourless
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.


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