Monographs Details:
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.
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.
Family:
Pteridaceae
Pteridaceae
Description:
Species Description - Rhizomes robust, erect, with dense scales. Fronds 1-2 m long, the basal part 3- or 4-pinnate; petiole robust, smooth, as long as blade; blade deltoid to pentagonal, acuminate, 1.2 X 1.2 m; rachis with fine, subcoriaceous scales; basal pinnae largest, to 55 cm long, the distal pinnae pinnatifid; pinnules linear to lanceolate, 5-15 cm long, sessile, pinnatifid; fertile ultimate segments oblong, oblique, falcate, 3-4 mm wide, with mucronate apex free of sori, the sterile ultimate segments with dentate margins; veins 1- or 2-furcate.
Distribution and Ecology - Rare, in lowland forest.
Species Description - Rhizomes robust, erect, with dense scales. Fronds 1-2 m long, the basal part 3- or 4-pinnate; petiole robust, smooth, as long as blade; blade deltoid to pentagonal, acuminate, 1.2 X 1.2 m; rachis with fine, subcoriaceous scales; basal pinnae largest, to 55 cm long, the distal pinnae pinnatifid; pinnules linear to lanceolate, 5-15 cm long, sessile, pinnatifid; fertile ultimate segments oblong, oblique, falcate, 3-4 mm wide, with mucronate apex free of sori, the sterile ultimate segments with dentate margins; veins 1- or 2-furcate.
Distribution and Ecology - Rare, in lowland forest.