PESA stands for “Pacific Exotica Spora Amazonia.” It got this name from the spore vendor that developed it — Pacifica Exotica Spora (PES).
This strain sometimes goes by other names, like the Amazon Strain, Amazonian Cubensis, and PES Amazonia. It’s unclear whether this strain is the same as the Amazon strain, as both mushrooms have similar but distinct growth habit.
This isolation is a Leucistic version.