- Peperomia quadrangularis, Peperomia atabapoensis;Peperomia angulata;Peperomia saginans;Piper quadrangulare
- Thelypteris hispidula, Roughhairy maiden fern;Thelypteris quadrangularis;Dryopteris dentata;Dryopteris quadrangularis;Nephrodium quadrangulare;Aspidium hispidulum;Christella hispidula
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