LiasLight

LIAS light – Item Descriptions


LIASlight ItemID: 4565

Petractis hypoleuca (Ach.) Vězda

Characters[*]:Character States[*]:
global occurrence: Eurasia – Europe
substrate: rock – calcareous, calciferous, basic
life habit: lichenized (mutualistic with algal photobionts)
thallus: crustose (crustaceous) – endosubstratal, inconspicuous, immersed
[th] upper surface: white(ish) | white(ish) yellow | white(ish) red (rose)
[th marginal and upper surface] specific structures: absent
ascomata: absent | present
ascoma: apothecial, apothecioid – hymenial
ascoma: immersed, innate
[ascm, if apoth] disc, mazaedium: yellow(ish) red (orange red)
[ascm] paraphyses/-oids: present
[asc] tholus amyloidity (iodine reaction): absent
[asp] length [µm]: (low) 20.0 (high) 38.0
[asp] width [µm]: (low) 4.5 (high) 7.0
[asp] septa: present
[asp] septa: transversely septate | muriformly septate – muriform, submuriform
[asp] transversal septa: (low) 5.0 (high) 9.0
[asp] pigmentation: hyaline, colourless
[asp] perispore, epispore: thick, distincly halonate
secondary metabolites: absent
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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