Monographs Details:
Authority:
Mickel, John T. & Smith, Alan R. 2004. The pteridophytes of Mexico. Mem. New York Bot. Gard. 88: 1-1054.
Mickel, John T. & Smith, Alan R. 2004. The pteridophytes of Mexico. Mem. New York Bot. Gard. 88: 1-1054.
Family:
Dryopteridaceae
Dryopteridaceae
Description:
Species Description - Rhizomes moderately to long-creeping, to 2 mm diam.; rhizome scales maroon, lustrous, linear, to 6 mm long, shorttoothed, especially along the elongate tips; fronds distant, 7.5–22 x 1.4–2.2 cm; phyllopodia indistinct or absent; stipes 1/5–1/2 the frond length, with linear, maroon, toothed, appressed scales ca. 2 mm long; blades narrowly elliptic, papyraceous, bases cuneate, apices acute to acuminate; veins evident, free, simple or rarely once-forked, 1.5–2.5 mm apart, at 50–60º angle to costa; hydathodes evident; blade scales brown, linear-lanceolate with flared bases, evenly but sparsely distributed on blades, scarce along margins, 2 mm long, with short teeth; fertile fronds smaller than the sterile, blades ca. 3.5 x 1.2 cm, stipes ca 4/5 the fertile frond length, intersporangial scales absent.
Species Description - Rhizomes moderately to long-creeping, to 2 mm diam.; rhizome scales maroon, lustrous, linear, to 6 mm long, shorttoothed, especially along the elongate tips; fronds distant, 7.5–22 x 1.4–2.2 cm; phyllopodia indistinct or absent; stipes 1/5–1/2 the frond length, with linear, maroon, toothed, appressed scales ca. 2 mm long; blades narrowly elliptic, papyraceous, bases cuneate, apices acute to acuminate; veins evident, free, simple or rarely once-forked, 1.5–2.5 mm apart, at 50–60º angle to costa; hydathodes evident; blade scales brown, linear-lanceolate with flared bases, evenly but sparsely distributed on blades, scarce along margins, 2 mm long, with short teeth; fertile fronds smaller than the sterile, blades ca. 3.5 x 1.2 cm, stipes ca 4/5 the fertile frond length, intersporangial scales absent.
Discussion:
Acrostichum squarrosum Klotzsch, Linnaea 20: 424. 1847. Type. Colombia [Venezuela]. Pa´ramo de Mucute´, Moritz 319 (B; isotypes BM!, K, frag. NY!, P!).
Elaphoglossum chiapense A. R. Sm., Proc. Calif. Acad. Sci, ser. 4, 40: 220, f. 4B-D. 1975. Type. Mexico. Chiapas: Mpio. Rayon, 10 km above Rayon Mezcalapa along road to Jitotol, Breedlove 32649 (DS!).
Among the subulate-scaled elaphoglossums in Mexico, E. squarrosum is distinct by its long-creeping rhizomes.
Distribution:
Mexico North America| Venezuela South America| Colombia South America| West Indies| Panama Central America| Costa Rica South America| Honduras Central America| Guatemala Central America|
Mexico North America| Venezuela South America| Colombia South America| West Indies| Panama Central America| Costa Rica South America| Honduras Central America| Guatemala Central America|