LiasLight

LIAS light – Item Descriptions


LIASlight ItemID: 12954

Thalloloma isidiosum Staiger

Characters[*]:Character States[*]:
global occurrence: Oceania – Pacific Islands (Melanesia, Micronesia, Polynesia)
substrate: soil, clay, humus, turf, detritus, dead leaves | bryophytes – mosses, liverworts
life habit: lichenized (mutualistic with algal photobionts)
thallus: crustose (crustaceous) – episubstratal – unspecified
thallus: granular, granulose, granulate
[th] upper surface: white(ish) | yellow(ish) grey
[th upper surface]: epruinose
[th marginal and upper surface] specific structures: present
[th margin] cilia, cilioid structures: absent
[th upper surface] isidia, isidioid structures: present
[th upper surface] soredia, soralia, soralioid structures: absent
[th] morphol substructures (eg areoles, lobes, branches) upper surface: granulose, granular | verruculose, minutely warted | verrucose, warted
ascomata: absent | present
ascoma: apothecial, apothecioid – hymenial
ascoma [mm]: (low) 0.3 (high) 0.8
ascoma: subsessile, subimmersed, adnate, semi-immersed, emergent
[ascm, if apoth] disc, mazaedium: plane, flat, flattened, expanded
[ascm, if apoth] disc, mazaedium: red(dish) | red(dish) brown (if pale: orange brown)
[ascm, if apoth] disc, mazaedium: epruinose | pruinose
[ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: hyaline, colourless | red(dish) yellow (orange, orange yellow)
[ascm] paraphyses/-oids: present
[ascm] paraphyses/-oid cells width [µm]: (low) 1.5 (high) 2.0
[ascm] epihymenium, epithecium: red(dish) | brown(ish) red (carneous)
asci: unitunicate
[asc] tholus: thickened
[asc] tholus amyloidity (iodine reaction): absent
ascospores: (median) 8.0
[asp] length [µm]: (low) 30.0 (high) 45.0
[asp] width [µm]: (low) 10.0 (high) 15.0
[asp] septa: present
[asp] septa: muriformly septate – muriform, submuriform
[asp] transversal septa: (low) 7.0 (high) 14.0
[asp] pigmentation: hyaline, colourless
[asp] perispore, epispore: amyloid
secondary metabolites: present
secondary metabolites: constictic acid | stictic acid | isohypocrelline
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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