Notes: Crust lichen, on bark.
THALLUS: dull rimose yellowish, not too thick, cortex not very distinct from medulla, K+ very faint yellow (visible under 30x), KC+ orange (visible under 30x), C+ fleeting orange (very strong on epihymenium)
MEDULLA: can’t distinguish from cortex
APOTHECIA: disks buried in smooth-sided warts
SPORES: huge, 2 per ascus, elliptical-oblong, 125 × 40 µm, outer wall 4 µm, inner wall 4 µm, one end has very thin outer wall, conspicuously radially striate, inner wall conspicuously rough
There are four poriform, esorediate, 2-spored Pertusaria listed for the area in Nash, two of which have the C+ orange reaction. The other one, P. pustulata, has smooth inner spore wall and dark epithecium, this one, P. xanthodes has rough inner spore wall and pale epithecium.
|User’s votes are weighted by their contribution to the site (log10 contribution). In addition, the user who created the observation gets an extra vote.|
|I’d Call It That||3.0||6.42||1||(jason)|
sum(score * weight) /
(total weight + 1)
Created: 2008-10-25 22:36:53 COT (-0500)
Last modified: 2008-10-25 22:36:53 COT (-0500)
Viewed: 28 times, last viewed: 2016-03-20 20:40:18 COT (-0500)