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 short-creeping, horizontal, 2–3 mm diam.; rhizome scales linear-lanceolate, castaneous, lustrous, 3–4 mm long, inconspicuously toothed; fronds clumped, 20–33 x 1.5–2.3 cm; phyllopodia distinct; stipes 1/10–1/5 the frond length, densely scaly, the scales spreading, orange-tan, concolorous or with dark central streak, 2–3 mm long; blades narrowly elliptic, narrowly cuneate at bases, acuminate at apices; veins obscure, ca. 1 mmapart, at 80º angle to costa; hydathodes absent; blade scales scattered to overlapping, lanceolate, 1–2 mm long (to 3 mm long on the costae abaxially), orange-tan (on adaxial surfaces becoming white with age, with long hair-teeth); fertile fronds longer than the sterile, the stipes ca. 3/4 the frond length, the blades linear, ca. 6 mm wide, usually inrolled to appear 3–4 mm wide, the scales lanceolate abaxially along the costae, those of the adaxial surfaces much reduced.
Species Description - Rhizomes short-creeping, horizontal, 2–3 mm diam.; rhizome scales linear-lanceolate, castaneous, lustrous, 3–4 mm long, inconspicuously toothed; fronds clumped, 20–33 x 1.5–2.3 cm; phyllopodia distinct; stipes 1/10–1/5 the frond length, densely scaly, the scales spreading, orange-tan, concolorous or with dark central streak, 2–3 mm long; blades narrowly elliptic, narrowly cuneate at bases, acuminate at apices; veins obscure, ca. 1 mmapart, at 80º angle to costa; hydathodes absent; blade scales scattered to overlapping, lanceolate, 1–2 mm long (to 3 mm long on the costae abaxially), orange-tan (on adaxial surfaces becoming white with age, with long hair-teeth); fertile fronds longer than the sterile, the stipes ca. 3/4 the frond length, the blades linear, ca. 6 mm wide, usually inrolled to appear 3–4 mm wide, the scales lanceolate abaxially along the costae, those of the adaxial surfaces much reduced.
Discussion:
Type. Mexico. Jalisco: E of [Rancho] Manantla ´n, about 15 mi SSE of Autla´n, Wilbur & Wilbur 1971 (US!; isotypes MEXU!, MICH!).
Elaphoglossum manantlanense resembles E. paleaceum in the scaly blades but is distinct in the castaneous, nearly edentate rhizome scales, very short stipes (1/10–1/5 the length of the frond instead of 1/5–1/4), concolorous stipe scales (or with a dark central streak), and linear fertile blades, slightly longer than the sterile.