LIAS light – Item Descriptions
LIASlight ItemID: 15247
Chaenothecopsis tsugae Rikkinen
| Characters[*]: | Character States[*]: |
|---|---|
| global occurrence: | Americas – North America (incl Mexico) |
| substrate: | bark, cork, plant surface – trunks, branches, twigs |
| life habit: | saprobic (on decaying organic substrate) |
| thallus: | crustose (crustaceous) – endosubstratal, inconspicuous, immersed |
| [th marginal and upper surface] specific structures: | absent |
| ascomata: | absent | present |
| ascoma: | apothecial, apothecioid – hymenial |
| ascoma [mm]: | (min) 0.7 (low) 0.77 (high) 1.11 (max) 1.15 |
| ascoma: | pedicellate, stipitate, pedunculate, stalked |
| [ascm, if apoth] disc, mazaedium: | strongly convex, hemispherical, (sub-)globose |
| [ascm, if apoth] disc, mazaedium: | black(ish) |
| [ascm, if apoth] disc, mazaedium: | epruinose | pruinose |
| [ascm, if apoth] disc, mazaedium pruina: | scarce, sparse, fine | dense |
| [ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: | hyaline, colourless |
| asci: | prototunicate |
| [asc] tholus: | not thickened |
| [asc] tholus amyloidity (iodine reaction): | absent |
| ascospores: | (median) 8.0 |
| [asp] shape: | ellipsoidal | cylindrical |
| [asp] length [µm]: | (min) 5.5 (low) 7.2 (high) 9.3 (max) 11.5 |
| [asp] width [µm]: | (min) 3.0 (low) 3.3 (high) 4.1 (max) 4.5 |
| [asp] septa: | absent – spore lumen unilocular, monolocular |
| [asp] pigmentation: | pale brown |
| [asp] perispore, epispore: | not apparent |
| secondary metabolites: | absent |
| primary photobiont: | absent |