![LiasLight](/Pictures/LiasLight_small.gif)
LIAS light – Item Descriptions
LIASlight ItemID: 12770
Psoroglaena arachnoidea Herrera-Camp. & Lücking
Characters[*]: | Character States[*]: |
---|---|
global occurrence: | Americas – North America (incl Mexico) |
substrate: | leaves, fronds, needles – living |
life habit: | lichenized (mutualistic with algal photobionts) |
thallus: | filamentose (filamentous), pannose | crustose (crustaceous) – episubstratal – unspecified |
[th] upper surface: | yellow(ish) (if dull: buff) | grey(ish) green |
[th marginal and upper surface] specific structures: | absent |
ascomata: | absent | present |
ascoma: | perithecial, perithecioid – hymenial |
ascoma [mm]: | (low) 0.1 (high) 0.15 |
ascoma: | subsessile, subimmersed, adnate, semi-immersed, emergent | sessile, superficial |
[ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: | brown(ish) yellow (ochraceous, ochre) |
[ascm] paraphyses/-oids: | absent |
asci: | fissitunicate – verrucarialean |
[asc] tholus: | thickened |
[asc] tholus amyloidity (iodine reaction): | absent |
ascospores: | (median) 8.0 |
[asp] shape: | fusiform |
[asp] length [µm]: | (low) 15.0 (high) 25.0 |
[asp] width [µm]: | (low) 3.0 (high) 5.0 |
[asp] septa: | present |
[asp] septa: | transversely septate |
[asp] transversal septa: | (median) 3.0 |
[asp] pigmentation: | hyaline, colourless |
[asp] perispore, epispore: | not apparent |
secondary metabolites: | absent |
primary photobiont: | present |
secondary photobionts (eg in cephalodia): | absent |
primary photobiont: | chlorophytaceous – trebouxiaceous, chlorococcoid |