Ophioglossum nudicaule

Kessler, Michael & Smith, Alan R., 2017, Prodromus of a fern flora for Bolivia. V. Ophioglossaceae, Phytotaxa 327 (1), pp. 90-94 : 92

Ophioglossum nudicaule L.f., Suppl. Pl. 443. 1781 [1782].

= Ophioglossum ellipticum Hook. & Grev., Icon. Filic. 1(2): t. 40A. 1827.

Range: —Southeastern U.S.A. and Mexico to Brazil and Argentina; Greater Antilles; Africa; tropical Asia; Australia. In Bolivia, recorded from BE, CH, CO, LP, SC, and TA, but with mostly only single records in each department.

Ecology: —Uncommon, or at least uncommonly collected; terrestrial flooded savannas in the Beni lowlands, and in humid high-elevation meadows and pastures; to 4000 m.

Notes: —A variable species in which seven ill-defined varieties are sometimes recognized ( Clausen 1938, Wagner et al. 1984a).