Elaphoglossum ipshookense
Description
Rhizomes short-creeping, compact, horizontal, 1.2–2 mm diam.; rhizome scales linear-lanceolate, castaneous to dark reddish brown, sclerotic, lustrous, 2–3 mm long, subentire with sparse teeth; fronds clumped to 2 mm apart, 19–30 X 1–1.4 cm; phyllopodia distinct, 5–7 mm long; stipes 1⁄6–1⁄4 the frond length, with scales sparse, appressed, sclerotic, dark reddish brown, arachnidoid; blades linear-elliptic, chartaceous, bases narrowly cuneate, apices long-acuminate; veins obscure, free, simple or 1-forked, mostly 0.7–1 mm apart, at ca. 75° angle to costa; hydathodes absent; adaxial blade surfaces subglabrous with sparse substellate scales, costa with sparse, short, dark, arachnidoid scales and occasional inconspicuous, pale, peltate, fimbriate scales; abaxial surfaces with sparse, orange, stellate hairs, costae with sparse, dark-sclerotic to pale arachnidoid scales; fertile fronds ca. equal to sterile in length but narrow, linear, 3–4 mm wide with inrolled margins, adaxial surfaces with abundant, orange, round, peltate, fimbriate scales ca. 0.5 mm across (incl. teeth), adaxial costae with similar scales and scattered, small, dark, sclerotic, arachnidoid scales, abaxial costae with only dark arachnidoid scales.A
A. Mickel, J. T. & Smith, A. R. 2004: The Pteridophytes of Mexico Vol. 88
Discussion
Elaphoglossum ipshookense is closely allied to E. tectum, resembling that species in blade shape, dark rhizome scales, and stellate hairs abaxially, but differing from it in smaller size and in lacking the distinctive round, peltate scales on stipes, rachises, and adaxial blade surfaces of the sterile fronds. The peltate scales on the fertile fronds confirm the relationship with E. tectum. This is one of the few species in Elaphoglossum in which the scales of the fertile fronds differ from those of the sterile fronds.B
B. Mickel, J. T. & Smith, A. R. 2004: The Pteridophytes of Mexico Vol. 88
Distribution
México (Country) endemicC
Specimen
Known only from the type collection. Oax (Mickel 4748, NY!).
Unverified, Doubtful, or Mistaken Reports. Chis (Pérez-Farrera 435, UAMIZ, UNICACH, cited by Pérez-Farrera, García, Riba, & López-Molina, Amer. Fern J. 93: 152, 2003, but not verified.D
D. Mickel, J. T. & Smith, A. R. 2004: The Pteridophytes of Mexico Vol. 88
Unverified, Doubtful, or Mistaken Reports. Chis (Pérez-Farrera 435, UAMIZ, UNICACH, cited by Pérez-Farrera, García, Riba, & López-Molina, Amer. Fern J. 93: 152, 2003, but not verified.D
Synonymy
Elaphoglossum ipshookense, Mem. New York Bot. Gard. 46: 175, figs. 1988