PLANT: terrestrial in AZ. STEMS dichotomously branched to 20 cm, 3-angled, 4 mm in diameter. LEAVES: absent or scalelike, less than 1 mm long. SYNANGIA: SYNANGIA yellowish to greenish yellow, 2-3 mm wide. NOTES: Rocky slopes: Santa Cruz Co.; ca. 1100 m; Jan-Dec; AL, FL, GA, LA, MS, SC, TX; Mex., C. and S. Amer., W. Ind., and Old World Tropics. REFERENCES: Raul Gutierrez Jr., 2007, Vascular Plants of Arizona: Psilotaceae. CANOTIA 3 (2): 32-34.