Observation 10124: Physciella chloantha (Ach.) Essl.
When: 2008-08-28
Herbarium specimen reported

Notes: The darned thing is so bloody small, I have no idea how to separate the upper from lower cortex, so I just squashed an entire lobe under the microscope. One surface was paraplectenchymatous (tiny packed round cells), the other was clearly prosoplectenchymatous (long narrow wavy parallel hyphae). Never dreamed it would be so obvious or easy. (This critical character separates Physciella from the sometimes otherwise identical Phaeophyscia.)

Proposed Names

87% (1)
Eye3 Eyes3
Recognized by sight: labriform soralia, white lower surface and rhizines
Used references: Nash’s Sonoan Flora
Based on microscopic features: prosoplectenchymatous lower cortex
Based on chemical features: cortex K-

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Merged location
By: Nathan Wilson (nathan)
2008-08-28 20:29:59 CEST (+0200)

I believe the park is commonly called “Crescenta Valley Park” not “La Crescenta Valley Park”. Actually according to the website it’s, “Crescenta Valley Community Regional Park”.

Created: 2008-08-28 19:30:10 CEST (+0200)
Last modified: 2008-08-28 19:30:10 CEST (+0200)
Viewed: 153 times, last viewed: 2016-11-19 03:19:26 CET (+0100)