Observation 102258: Acarospora obnubila H. Magn.

When: 2011-09-28

Collection location: Castro Crest, Malibu Creek State Park, Los Angeles Co., California, USA [Click for map]

34.0812° -118.7524° 637m

Who: Jason Hollinger (jason)

Specimen available

Notes:
HABITAT oldgrowth chaparral and conglomerate outcrops at top of high transverse ridge; SUBSTRATE north face of conglomerate cliff; ASPECT shaded; NOTES scattered dull light brown areoles, K- C- KC- UV- 350-375nm, 1-5 dark red-brown sunken small apothecia in each areole, epihymenium red-brown POL-, cortex margin brown POL- but hyaline POL- within, algal layer conspicuously jagged, medulla finely POL+ in areas, hymenium hyaline POL-, hypothecium brownish POL-; SPORES many per ascus, ~4 × 1.5 µm.

Images

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20110928-318.jpg
Fertile areoles, at 30x, stacked.
240184
20110928-317.jpg
Scattered tiny areoles, at 10x, stacked.
240185
20110928-43.jpg
Large shaded patch on rotten flake of stone.
240186
20110928-203.jpg
Thallus, at 30×.
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20110928-204.jpg
Apothecial section, in water, at 100×.
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20110928-205.jpg
Apothecial section, in water, at 100x, cross-polarized.

Proposed Names

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Created: 2012-07-20 02:37:40 CDT (-0400)
Last modified: 2012-07-20 02:37:45 CDT (-0400)
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