LIAS light – Item Descriptions
LIASlight ItemID: 3651
Megalospora pachycheila (Tuck.) Sipman
| Characters[*]: | Character States[*]: |
|---|---|
| global occurrence: | Americas – North America (incl Mexico) | Americas – South and Central America |
| substrate: | bryophytes – mosses, liverworts | bark, cork, plant surface – trunks, branches, twigs |
| life habit: | lichenized (mutualistic with algal photobionts) |
| thallus: | crustose (crustaceous) – episubstratal – unspecified |
| [th] upper surface: | green(ish) | white(ish) grey | grey(ish) white |
| [th marginal and upper surface] specific structures: | absent |
| ascomata: | absent | present |
| ascoma: | apothecial, apothecioid – hymenial |
| ascoma: | sessile, superficial | subpedicellate, substipitate, subpedunculate, substalked |
| [ascm, if apoth] disc, mazaedium: | concave | plane, flat, flattened, expanded |
| [ascm, if apoth] disc, mazaedium: | black(ish) | brown(ish) (if pale: fawn, tan; if mid: cinnamon) |
| [ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: | black(ish) | brown(ish) (if pale: fawn, tan; if mid: cinnamon) |
| [ascm, if apoth] margin excipular photobionts: | present |
| [ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: | hyaline, colourless |
| [ascm] paraphyses/-oids: | present |
| [ascm] epihymenium, epithecium: | brown(ish) yellow (ochraceous, ochre) | yellow(ish) brown | red(dish) brown (pale: orange brown) | brown(ish) red (carneous) |
| asci: | lecanoralean |
| [asc] tholus: | thickened |
| [asc] tholus amyloidity (iodine reaction): | present |
| [asc] tholus amyloidity pattern: | entirely amyloid (= Catillaria-, Teloschistes-types etc) |
| ascospores: | (median) 1.0 |
| [asp] shape: | ellipsoidal | elongate-fusiform, ellipsoidal-fusiform |
| [asp] septa: | present |
| [asp] septa: | transversely septate |
| [asp] transversal septa: | (low) 5.0 (high) 11.0 |
| [asp] pigmentation: | hyaline, colourless |
| conidiomata: | absent | present |
| conidia: | cylindrical | bacilliform, bacillar |
| secondary metabolites: | present |
| secondary metabolites: | lichexanthone | pannarin | usnic acid | zeorin (hopane-6α,22-diol) |
| primary photobiont: | present |
| secondary photobionts (eg in cephalodia): | absent |
| primary photobiont: | chlorophytaceous – trebouxiaceous, chlorococcoid |