LiasLight

LIAS light – Item Descriptions


LIASlight ItemID: 7651

Arthonia tehleri Sundin

Characters[*]:Character States[*]:
global occurrence: Africa (incl Madagascar) | Americas – North America (incl Mexico)
substrate: wood – dead, living | bark, cork, plant surface – trunks, branches, twigs
[th] upper surface: white(ish)
[th marginal and upper surface] specific structures: absent
ascomata: absent | present
ascoma: apothecial, apothecioid – hymenial
ascoma [mm]: (low) 0.2 (high) 1.3
ascoma: subsessile, subimmersed, adnate, semi-immersed, emergent | sessile, superficial
[ascm, if apoth] disc, mazaedium: plane, flat, flattened, expanded | subconvex, slightly convex
[ascm, if apoth] disc, mazaedium: black(ish)
[ascm, if apoth] disc, mazaedium: pruinose
[ascm, if apoth] disc, mazaedium pruina: scarce, sparse, fine | dense
[ascm, if apoth] margin excipular photobionts: absent
[ascm] epihymenium, epithecium: green(ish) brown (olive brown) | yellow(ish) brown
asci: fissitunicate – bitunicate
[asc] tholus: thickened
[asc] tholus amyloidity (iodine reaction): absent | present
[asc] tholus amyloidity pattern: with amyloid tube, ring (= Collema-, Micarea-, Porpidia-, Psora-types etc)
ascospores: (median) 8.0
[asp] shape: ovoid, ovate
[asp] length [µm]: (low) 16.0 (high) 18.0
[asp] width [µm]: (low) 6.0 (high) 8.0
[asp] septa: present
[asp] septa: transversely septate | muriformly septate – muriform, submuriform
[asp] transversal septa: (low) 5.0 (high) 6.0
[asp] pigmentation: hyaline, colourless
[asp] perispore, epispore: ornamented, rough, warted, striate, cracked
conidiomata: absent | present
conidia: filiform, vermiform | [cur] – curved, unciform, falcate, sickle-shaped
[co] length [µm]: (low) 7.0 (high) 9.0
primary photobiont: absent

[*] 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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