Lindsaea guianensis (Aubl.) Dryand., Trans. Linn. Soc. London

Smith, Alan R. & Kessler, Michael, 2017, Prodromus of a fern flora for Bolivia. XXV. Lindsaeaceae, Phytotaxa 332 (3), pp. 290-294 : 292

Lindsaea guianensis (Aubl.) Dryand., Trans. Linn. Soc. London 3: 42. 1797.

Range:— Lesser Antilles; Nicaragua; Colombia to Bolivia (PA) and northern Brazil.

Ecology:— Rare; terrestrial, in humid forests, often near streams ( Drucker et al. 2008); at 150 m in Bolivia, to 1250 m elsewhere .

Notes:— The single Bolivian specimen can be assigned to subsp. guianensis . Lindsaea guianensis subsp. lanceastrum K.U.Kramer , from central and eastern Brazil, and Paraguay, may occur in eastern Bolivia. It has pinnae acute to shortly acuminate (vs. long-acuminate); distalmost pinnules ca. 5 mm long (vs. 1–2 mm); axes usually reddish to dark brown (vs. usually pale); and blades pinnate or bipinnate (vs. usually bipinnate). Perhaps best treated as a distinct species. Petioles stramineous to basally castaneous, abaxially rounded; blades (1–)2-pinnate; rachises rounded to angular (but without pale wings); pinnules 1½–2 times as long as broad; distal segments gradually reduced; indusia (entire to) minutely erose-denticulate, 0.15–0.2 mm wide.