Monographs Details:
Authority:
Mickel, John T. & Beitel, Joseph M. 1988. Pteridophyte Flora of Oaxaca, Mexico. Mem. New York Bot. Gard. 46: 1-580.
Mickel, John T. & Beitel, Joseph M. 1988. Pteridophyte Flora of Oaxaca, Mexico. Mem. New York Bot. Gard. 46: 1-580.
Family:
Dryopteridaceae
Dryopteridaceae
Description:
Species Description - Rhizome short- to moderately creeping, 2-4 mm diam.; rhizome scales lanceolate, lustrous brown, to 5 mm long, entire or with a few weak, short hairs, sometimes deciduous, leaving a naked rhizome; phyllopodia distinct fronds clumped to slightly spaced, to 60 cm long, but usually half that long, 1.5-4.0 cm wide; stipe ¼-½ the frond length, naked or with minute, reduced, appressed scales; blade linear to linear-lanceolate, coriaceous, apex obtuse to acuminate, base narrowly cuneate; veins obscure, free, simple or once-forked, ca. 1 mm apart, at ca. 70° angle; hydathodes lacking; blade surfaces glabrous or with minute stellate hairs, especially on the lower surface; fertile fronds slightly longer than the sterile fronds, the stipe longer (½-¾ the length) and the blade narrower, scales lacking; spores with large, round bumps or low ridges and sparse spicules.
Species Description - Rhizome short- to moderately creeping, 2-4 mm diam.; rhizome scales lanceolate, lustrous brown, to 5 mm long, entire or with a few weak, short hairs, sometimes deciduous, leaving a naked rhizome; phyllopodia distinct fronds clumped to slightly spaced, to 60 cm long, but usually half that long, 1.5-4.0 cm wide; stipe ¼-½ the frond length, naked or with minute, reduced, appressed scales; blade linear to linear-lanceolate, coriaceous, apex obtuse to acuminate, base narrowly cuneate; veins obscure, free, simple or once-forked, ca. 1 mm apart, at ca. 70° angle; hydathodes lacking; blade surfaces glabrous or with minute stellate hairs, especially on the lower surface; fertile fronds slightly longer than the sterile fronds, the stipe longer (½-¾ the length) and the blade narrower, scales lacking; spores with large, round bumps or low ridges and sparse spicules.
Discussion:
Acrostichum guatemalense Klotzsch, Allg. Gartenzei-tung 23: 66. 1855. Type. From cultivation in Potsdam, Germany, grown from spores of unknown locality in Guatemala. Acrostichum salvinii Baker ex Hemsley, Biol, centr. amer. 3: 688. 1885. Type. Guatemala. Volcán de Fuego, Godman & Salvin 54226 (K). We have placed under this name those essentially glabrous specimens that have slender, creeping rhizomes and short, lanceolate, lustrous, brown rhizome scales. There may in fact be more than one element here as some specimens seem especially narrow with acuminate apices, some broader with bluish-green blades and acuminate apices, with the bulk of the specimens with obtuse to acute apices.
Acrostichum guatemalense Klotzsch, Allg. Gartenzei-tung 23: 66. 1855. Type. From cultivation in Potsdam, Germany, grown from spores of unknown locality in Guatemala. Acrostichum salvinii Baker ex Hemsley, Biol, centr. amer. 3: 688. 1885. Type. Guatemala. Volcán de Fuego, Godman & Salvin 54226 (K). We have placed under this name those essentially glabrous specimens that have slender, creeping rhizomes and short, lanceolate, lustrous, brown rhizome scales. There may in fact be more than one element here as some specimens seem especially narrow with acuminate apices, some broader with bluish-green blades and acuminate apices, with the bulk of the specimens with obtuse to acute apices.
Distribution:
Mexico North America| Honduras Central America| Guatemala Central America|
Mexico North America| Honduras Central America| Guatemala Central America|