LIAS light – Item Descriptions
LIASlight ItemID: 15085
Chaenothecopsis thujae Rikkinen
| Characters[*]: | Character States[*]: |
|---|---|
| global occurrence: | Americas – North America (incl Mexico) |
| substrate: | bark, cork, plant surface – trunks, branches, twigs |
| thallus: | crustose (crustaceous) – endosubstratal, inconspicuous, immersed |
| [th marginal and upper surface] specific structures: | absent |
| ascomata: | absent | present |
| ascoma: | apothecial, apothecioid – hymenial |
| ascoma [mm]: | (min) 0.04 (low) 0.23(median) 0.37 (high) 0.5 (max) 0.58 |
| ascoma: | pedicellate, stipitate, pedunculate, stalked |
| [ascm, if apoth] disc, mazaedium: | black(ish) |
| [ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: | 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: | broadly ellipsoidal |
| [asp] length [µm]: | (min) 7.5 (low) 7.6(median) 8.7 (high) 9.9 (max) 12.5 |
| [asp] width [µm]: | (min) 3.8 (low) 4.1(median) 4.6 (high) 5.0 (max) 5.6 |
| [asp] septa: | absent – spore lumen unilocular, monolocular |
| [asp] pigmentation: | medium brown, brownish |
| [asp] perispore, epispore: | not apparent | ornamented, rough, warted, striate, cracked |
| secondary metabolites: | absent |
| primary photobiont: | absent |