Collection location: Pasadena, California, USA [Click for map]
microscopically fruticose lichen, on rough elm bark, probably enriched by bird droppings
THALLUS: bright yellow-orange, leprose to minutely subfruticose, very few lobes intact, undersurface quicky breaking up into granular soredia, lobes ascending
APOTHECIA: rare, lecanorine, orange, epihymenium brown, hymenium clear and IKI-, hypothecium clear, algae abundant under and in rims, paraphyses abundant and simple with rounded subclavate tips, asci clavate to balloon-shaped at maturity, thollus indented inside, thick IKI- wall and IKI- lens inside thollus that doesn’t seem to penetrate completely, cortex weakly K+ golden, epihymenium shows minute POL+ golden crystals/granules
SPORES: 8 per ascus, clear, 1 cell, oblong, smooth, IKI+ reddish, 12-16 × 3-5 µm Q=2.8-5.3 (N=10)
This is apparently a common species, that was until recently included in Candelaria concolor. However the soredia and number / size of spores clearly distinguish it.
In Pasadena, look for it just north of Heatherside on Linda Vista. It almost completely covers one of the trees on the west side of the street… but you have to be headed south to see it!
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|I’d Call It That||3.0||6.43||1||(jason)|
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Created: 2008-08-27 20:28:04 BST (+0100)
Last modified: 2008-08-27 20:28:04 BST (+0100)
Viewed: 309 times, last viewed: 2018-04-12 04:20:27 BST (+0100)