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 long-creeping, ca. 1 mm diam.; rhizome scales ovate to linear-lanceolate, dull orange, peltate, entire, 3–6 mm long; fronds 1–2 cm distant, 5–8 x 1.2–1.6 cm; phyllopodia absent; stipes slender, ca. 1/2 the frond length, moderately clothed with ovate, dull orange scales 2–3 mm long; blades ovate-lanceolate or spatulate, chartaceous, bases broadly cuneate, apices obtuse; veins obscure, free, simple or once-forked, ca. 1 mm apart, at 60–70º angle to costa; hydathodes absent; blade scales sparse, small, inconspicuous, 1–2 mm long, linear, often coarsely and irregularly toothed, especially toward the scale bases, more frequent on the abaxial surfaces; fertile fronds as tall as, or slightly taller than, the sterile fronds, with longer stipes, ca. 3/4 the length, blades spathulate, smaller than the sterile with a few scales along the abaxial costae but absent among the sporangia.
Species Description - Rhizomes long-creeping, ca. 1 mm diam.; rhizome scales ovate to linear-lanceolate, dull orange, peltate, entire, 3–6 mm long; fronds 1–2 cm distant, 5–8 x 1.2–1.6 cm; phyllopodia absent; stipes slender, ca. 1/2 the frond length, moderately clothed with ovate, dull orange scales 2–3 mm long; blades ovate-lanceolate or spatulate, chartaceous, bases broadly cuneate, apices obtuse; veins obscure, free, simple or once-forked, ca. 1 mm apart, at 60–70º angle to costa; hydathodes absent; blade scales sparse, small, inconspicuous, 1–2 mm long, linear, often coarsely and irregularly toothed, especially toward the scale bases, more frequent on the abaxial surfaces; fertile fronds as tall as, or slightly taller than, the sterile fronds, with longer stipes, ca. 3/4 the length, blades spathulate, smaller than the sterile with a few scales along the abaxial costae but absent among the sporangia.
Discussion:
Acrostichum squamipes Hook., Icon. Pl., ser. 1, 2: t. 197. 1837. Type. Peru. Chacapoyas, Mathews s.n. (K!).
Acrostichum ovatum Liebm., Mexic. Bregn. 164 (reprint 12). 1849, hom. illeg., non Hook. & Grev., 1829. Elaphoglossum subaequale T. Moore, Index Fil. 368. 1862. Type. Mexico. Oaxaca: Cerro Zempoalte´petl, Liebmann s.n. [Pl. Mex. 2431, Fl. Mex. 5] (C!; isotypes K!, P!, US!).
Elaphoglossum squamipes represents a distinct group with long-creeping rhizomes and broad, dull orange, rhizome and stipe scales. It is very closely related to E. peltatum, differing from E. squamipes et aff. only in blade dissection.
Distribution:
Mexico North America| Bolivia South America| Brazil South America| Peru South America| Amazonas Ecuador South America| Venezuela South America| Colombia South America| Cuba South America| Panama Central America| Puntarenas Costa Rica Central America| El Salvador Central America|
Mexico North America| Bolivia South America| Brazil South America| Peru South America| Amazonas Ecuador South America| Venezuela South America| Colombia South America| Cuba South America| Panama Central America| Puntarenas Costa Rica Central America| El Salvador Central America|