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Guide to Plagiotropis arizonica

Czarn. and Blinn 1978

Plagiotropis Arizonica Guide
Credit: Loren Bahls
  1. Valves large
  2. Areolae distinct
  3. Striae convergent and more widely spaced at valve center

Valves are linear-lanceolate and large, greater than 110 µm in length. Striae are somewhat convergent and more widely spaced at the valve center. Areolae are distinct in LM and number 15-18 in 10 µm.

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