Observation 12289: Aspicilia confusa Owe-Larss & a. Nordin (2007)
When: 2007-08-24
Herbarium specimen reported

Notes: crust lichen, on granitic rock
THALLUS: dark gray, areolate, K-
MEDULLA: white
ALGAE: green
APOTHECIA: ~1 per areole, sunken, disk black, epihymenium greenish brown turning pure brown in K, hymenium clear, hypothecium clear, asci with K/I- thickened tip, paraphyses narrow & anastomosing & with about 4 swollen cells at end
SPORES: 8 per ascus, elliptical, smooth, around 20-25 × 12-14 µm, clear, simple

Clearly keys to A. confusa (common) or A. fumosa (not common): former has concolorous to white-lined rims and spores 19-27 × 11-16 µm; latter has olive to brown contrasting rims and spores 18-22 × 10-14 µm. Otherwise
they are essentially the same. Mine is clearly the former. This is also reputedly common in southern California mountains.

Proposed Names

87% (1)
Eye3 Eyes3
Used references: Nash’s Sonoran Flora
Based on microscopic features
Based on chemical features: K-

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Created: 2008-10-11 08:01:05 AEDT (+1100)
Last modified: 2008-10-11 08:01:05 AEDT (+1100)
Viewed: 22 times, last viewed: 2016-10-23 20:42:13 AEDT (+1100)