Figure 1. Close up of the squamulose lichen |
Keying steps:
Key G. Squamulose Lichens pg. 134
1. Thallus dull or shiny, but not gelatinous when wet
3. Thallus pale green, gray, brown, olive, or black without yellowish or orange tint
17. Squamules ascending or erect, flat or cylindrical, with the lower surface easily seen
18. Thallus composed of flat, clearly dorsiventral squabbles
20. Squamules not more than 3 times longer than broad, apothecia occurring singly, thallus cortex K-(atranorin absent) relatively common
21. Squamules lobed or finely divided, apothecia raised on a stalk or stipe; thallus cortex C-, KC-(gyrophoric acid absent as main compound)
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