Elaphoglossum huacsaro
Description
Rhizomes compact, often 5–10 cm long, 3–5 mm diam., apices ascending; rhizome scales lanceolate, concolorous, castaneous to black, 1–3 mm long, lustrous, entire, each often with a tortuous hair-like tip; fronds 17–34 cm long, approximate; phyllopodia present but obscured by scales; stipes 1⁄4–1⁄3 of sterile frond length, orange to brown; stipe scales ca. 1 mm long, mostly appressed, some spreading, lanceolate, dark to pale, the larger ones often dark-tipped; sterile blades (6–)15–24 X 0.8–1.6 cm, linear, chartaceous to subcoriaceous, bases narrowly cuneate, apices obtuse to rounded; veins obscure, ca. 1 mm apart, at 60–75° angle to costa; hydathodes absent; blade scales reduced to resinous dots on both surfaces, costal scales ca. 1 mm long, lanceolate, spreading, and scales along adaxial lamina margins 0.2–0.6 mm long, appressed, ovate, entire; fertile fronds far exceeding the sterile in length, stipes 2⁄3 of frond length, nearly as long as the entire sterile leaf, blades narrow, (6–)8–11 mm wide, intersporangial scales absent.A
A. Mickel, J. T. & Smith, A. R. 2004: The Pteridophytes of Mexico Vol. 88
Discussion
Elaphoglossum huacsaro is distinct by the linear fronds with resinous dots abaxially and small marginal scales adaxially, obtuse blade apices, ascending rhizomes, and terrestrial habitat.B
B. Mickel, J. T. & Smith, A. R. 2004: The Pteridophytes of Mexico Vol. 88
Habitat & Ecology
On steep roadbanks.D
D. Mickel, J. T. & Smith, A. R. 2004: The Pteridophytes of Mexico Vol. 88
Specimen
Chis (Breedlove 22412, ENCB, NY, 23167, 32336, DS; Lloyd 4064, ENCB).E
E. Mickel, J. T. & Smith, A. R. 2004: The Pteridophytes of Mexico Vol. 88