LiasLight

LIAS light – Item Descriptions


LIASlight ItemID: 4579

Phaeocalicium praecedens (Nyl.) A. F. W. Schmidt

Characters[*]:Character States[*]:
global occurrence: Eurasia – Europe | Americas – North America (incl Mexico) | Arctic
substrate: bark, cork, plant surface – trunks, branches, twigs
life habit: saprobic (on decaying organic substrate) | phytopathogenic (pathogenic on kormophytes)
thallus: crustose (crustaceous) – endosubstratal, inconspicuous, immersed
[th marginal and upper surface] specific structures: absent
ascomata: absent | present
ascoma: apothecial, apothecioid – hymenial
ascoma [mm]: (low) 0.18 (high) 0.28
ascoma: pedicellate, stipitate, pedunculate, stalked
[ascm, if apoth] disc, mazaedium: 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: brown(ish) (if pale: fawn, tan; if mid: cinnamon)
[ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: brown(ish) (if pale: fawn, tan; if mid: cinnamon)
[ascm] paraphyses/-oids: present
[ascm] epihymenium, epithecium: brown(ish) (if pale: fawn, tan; if mid: cinnamon)
asci: prototunicate
[asc] tholus: not thickened
[asc] tholus amyloidity (iodine reaction): absent
ascospores: (median) 8.0
[asp] shape: ellipsoidal
[asp] length [µm]: (min) 10.1 (low) 12.0 (high) 12.8 (max) 17.0
[asp] width [µm]: (min) 4.0 (low) 5.0 (high) 5.6 (max) 7.0
[asp] septa: absent – spore lumen unilocular, monolocular
[asp] pigmentation: medium brown, brownish | dark brown
[asp] perispore, epispore: not apparent | ornamented, rough, warted, striate, cracked
secondary metabolites: absent
host organism:
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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