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 moderately creeping, 2-4 mm diam.; rhizome scales deltate-lanceolate, lustrous brown, ca. 2 mm long, entire or with a few weak short hairs, somewhat deciduous, leaving a partially naked rhizome; phyllopodia distinct, usually 1-1.5 cm long; fronds somewhat spaced, to 30 cm long, 1-2 cm wide; stipe ¼-½ the frond length, naked or with a few lanceolate scales at base; blade narrowly elliptic, coriaceous, apex acute 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, black, stellate, reduced scales, especially on the lower surface; fertile fronds slightly longer than the sterile fronds, the stipe longer (½-¾ the length) and the blade slightly narrower, scales lacking; spores with large, round bumps or low ridges.
Species Description - Rhizome moderately creeping, 2-4 mm diam.; rhizome scales deltate-lanceolate, lustrous brown, ca. 2 mm long, entire or with a few weak short hairs, somewhat deciduous, leaving a partially naked rhizome; phyllopodia distinct, usually 1-1.5 cm long; fronds somewhat spaced, to 30 cm long, 1-2 cm wide; stipe ¼-½ the frond length, naked or with a few lanceolate scales at base; blade narrowly elliptic, coriaceous, apex acute 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, black, stellate, reduced scales, especially on the lower surface; fertile fronds slightly longer than the sterile fronds, the stipe longer (½-¾ the length) and the blade slightly narrower, scales lacking; spores with large, round bumps or low ridges.
Discussion:
Type. Mexico. Oaxaca: Dist. Ixtlán, 4 km S of Vista Hermosa, 74 km N of Ixtlán de Juárez on Rte 175; wet montane forest, 5400-6200'[1645-1890 m], Mickel 6615 (NY!; isotypes MEXU!, UC!). This species is much like E. glabellum but with phyllopodia shorter, blade broader, with minute, black, stellate scales, and the fertile frond longer than the sterile.
Type. Mexico. Oaxaca: Dist. Ixtlán, 4 km S of Vista Hermosa, 74 km N of Ixtlán de Juárez on Rte 175; wet montane forest, 5400-6200'[1645-1890 m], Mickel 6615 (NY!; isotypes MEXU!, UC!). This species is much like E. glabellum but with phyllopodia shorter, blade broader, with minute, black, stellate scales, and the fertile frond longer than the sterile.
Distribution:
Mexico North America| Oaxaca Mexico North America|
Mexico North America| Oaxaca Mexico North America|