Adiantum macrophyllum Sw.
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Authority
Mori, S. A., et al. 1997. Guide to the vascular plants of central French Guiana: Part 1. Pteridophytes, gymnosperms, and monocotyledons. Mem. New York Bot. Gard. 76: 1-422.
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Family
Pteridaceae
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Scientific Name
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Description
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Species Description - Rhizomes short-creeping, covered with linear scales. Fronds alternate, erect or decumbent, pinnate; petiole shiny, black, glabrous, 15-30 cm long; blade oblong to ovate, 15- 30 X 10-20 cm; pinnae 3-8 on each side of rachis, glabrous, lightly subglaucous on abaxial surface, terminal pinna present; sterile pinnae with one margin irregularly incised or lobed. Sori continuous or nearly continuous.
Distribution and Ecology - In French Guiana known only from Saul where it is extremely rare on clay banks or on fallen logs in well-shaded forests.