LiasLight

LIAS light – Item Descriptions


LIASlight ItemID: 2226

Gyalecta ulmi (Sw.) Zahlbr.

Characters[*]:Character States[*]:
global occurrence: Eurasia – Asia Extratropical | Eurasia – Europe | Arctic
substrate: soil, clay, humus, turf, detritus, dead leaves | bryophytes – mosses, liverworts | bark, cork, plant surface – trunks, branches, twigs
life habit: lichenized (mutualistic with algal photobionts)
thallus: crustose (crustaceous) – episubstratal – unspecified
thallus: continuous, diffuse, effuse | cracked, fissured, fractured, rimose
[th] upper surface: white(ish)
[th marginal and upper surface] specific structures: absent
ascomata: absent | present
ascoma: apothecial, apothecioid – hymenial
ascoma [mm]: (median) 2.0
[ascm, if apoth] disc, mazaedium: concave
[ascm, if apoth] disc, mazaedium: brown(ish) (if pale: fawn, tan; if mid: cinnamon) | red(dish) | red(dish) brown (if pale: orange brown)
[ascm, if apoth] disc, mazaedium: pruinose
[ascm] paraphyses/-oids: present
asci: unitunicate
[asc] tholus: thickened
[asc] tholus amyloidity (iodine reaction): absent | present
ascospores: (median) 8.0
[asp] length [µm]: (low) 15.0 (high) 25.0
[asp] width [µm]: (low) 5.0 (high) 8.0 (max) 9.0
[asp] septa: present
[asp] septa: transversely septate
[asp] transversal septa: (median) 3.0
[asp] pigmentation: hyaline, colourless
[asp] perispore, epispore: not apparent
primary photobiont: present
secondary photobionts (eg in cephalodia): absent
primary photobiont: chlorophytaceous – trentepohliaceous, trentepohlioid

[*] 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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