Elaphoglossum tectum
Description
Rhizomes compact, short- to moderately creeping, 2–3 mm diam.; rhizome scales linear- lanceolate, dark reddish black, sclerotic, lustrous, ca. 5 mm long, with a few pale, weak hairteeth; fronds clumped to 3 mm apart, 60–80 X 1.7–2.6 cm; phyllopodia indistinct; stipes 1⁄3–1⁄2 the frond length, with scales appressed, peltate, round with dark centers and short hairteeth; blades linear-elliptic, chartaceous, bases narrowly cuneate, apices long-acuminate; veins obscure, free, simple or onceforked, mostly 0.7–1 mm apart, at ca. 80° angle to costa; hydathodes absent; blade scales on adaxial surfaces white, appressed, round, peltate, toothed, deciduous with age, scales on the abaxial surfaces reduced to stellate hairs; fertile fronds about as long as the sterile or slightly longer, but with narrower blades and longer stipes more than 1⁄2 the frond length, scales round, peltate on abaxial costae but absent among the sporangia; 2n =164 (Jam).A
A. Mickel, J. T. & Smith, A. R. 2004: The Pteridophytes of Mexico Vol. 88
Discussion
This species is readily distinguished by the round, peltate scales on the stipes and adaxial blade surfaces and stellate hairs on the abaxial blade surfaces.B
B. Mickel, J. T. & Smith, A. R. 2004: The Pteridophytes of Mexico Vol. 88
Specimen
Chis (Breedlove 23172, DS; Lloyd 4064, ENCB p.p.). Oax (Mickel 5086b, 5096, NY). Ver (Bourgeau 2538, K, 3065, NY; Müller 42, NY; Purpus 2350, 6187, US; Smith 2017, UC).
D
D. Mickel, J. T. & Smith, A. R. 2004: The Pteridophytes of Mexico Vol. 88
D