LiasLight

LIAS light – Item Descriptions


LIASlight ItemID: 6393

Umbilicaria mammulata (Ach.) Tuck.

Characters[*]:Character States[*]:
global occurrence: Americas – North America (incl Mexico) | Arctic
substrate: rock – siliceous, siliciferous, acidic
life habit: lichenized (mutualistic with algal photobionts)
thallus: peltate, umbilicate
thallus: continuous, diffuse, effuse
[th] upper surface: brown(ish) (if pale: fawn, tan; if mid: cinnamon) | brown(ish) green (olivaceous, olive green) | green(ish) brown (olive brown) | red(dish) brown (if pale: orange brown)
[th upper surface]: pruinose
[th upper surface] pruina: scarce, sparse, fine
[th marginal and upper surface] specific structures: absent
[th] morphol substructures (eg areoles, lobes, branches) width [mm]: (low) 60.0 (high) 300.0
[th] morphol substructures (eg areoles, squamules): distantly discontiguous
[th] morphol substructures (eg areoles, lobes, branches) upper surface: smooth, plane | granulose, granular | rugose, plicate, folded, pustulate, faveolate, wrinkled
[th] lower surface: black(ish)
[th lower surface] specific structures: present
[th lower surface] rhizines, rhizoid structures: present
[th lower surface] rhizines, rhizinoid structures: unbranched, simple
ascomata: absent | present
ascoma: apothecial, apothecioid – hymenial
ascoma [mm]: (low) 2.0 (high) 4.0
ascoma: sessile, superficial | subpedicellate, substipitate, subpedunculate, substalked
[ascm, if apoth] disc, mazaedium: plane, flat, flattened, expanded | subconvex, slightly convex | convex
[ascm, if apoth] disc, mazaedium: black(ish)
[ascm, if apoth] disc, mazaedium: epruinose
[ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: black(ish)
[ascm, if apoth] margin excipular photobionts: absent
[ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: brown(ish) (if pale: fawn, tan; if mid: cinnamon)
[ascm] paraphyses/-oids: present
[ascm] paraphyses/-oid cells width [µm]: (low) 2.4 (high) 3.0
[ascm] paraphyses/-oid apical cells width [µm]: (low) 3.0 (high) 3.3
[ascm] epihymenium, epithecium: black(ish)
asci: lecanoralean
[asc] tholus: thickened
[asc] tholus amyloidity (iodine reaction): present
[asc] tholus amyloidity pattern: entirely amyloid (= Catillaria-, Teloschistes-types etc)
ascospores: (median) 8.0
[asp] shape: ellipsoidal
[asp] length [µm]: (low) 16.0 (high) 25.0
[asp] width [µm]: (low) 8.0 (high) 15.0
[asp] septa: absent – spore lumen unilocular, monolocular
[asp] pigmentation: hyaline, colourless | medium brown, brownish
[asp] perispore, epispore: not apparent
secondary metabolites: present
secondary metabolites: gyrophoric acid
primary photobiont: present
secondary photobionts (eg in cephalodia): absent
primary photobiont: chlorophytaceous – trebouxiaceous, chlorococcoid

[*] 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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