Polypodium lepidotrichum (Fée) Maxon
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Authority
Mickel, John T. & Smith, Alan R. 2004. The pteridophytes of Mexico. Mem. New York Bot. Gard. 88: 1-1054.
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Family
Polypodiaceae
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Scientific Name
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Description
Species Description - Rhizomes creeping, 5-7 mm diam.; rhizome scales pale, concolorous except with cell walls near center dark brown, stramineous to lustrous-castaneous, linear to linear-lanceolate, longattenuate, remotely serrulate, 2-2.5(-4) x 0.5-0.8 mm, often reflexed; fronds 30-65 cm long, distant; stipes 1/3-1/2 the frond length, stramineous, lanose with pale acicular scales with round basal portion 0.3-0.5 mm wide, centers dark red, tips 2-4 mm long, twisted, white; blades deltate-ovate or obovate, pinnatisect, with terminal pinna conform, 16-23 cm wide; pinnae 10-18 pairs, to 12 x 0.7-1.5 cm, linear-deltate, broadly adnate, surcurrent to equally surcurrent and decurrent, occasionally slightly constricted at bases, nectaries on surcurrent edges, apices acuminate; costae prominent, stramineous; adaxial laminar surfaces with scattered minute acicular fimbriate scales; abaxial surfaces with more and larger scales, centers red, tips white, 1-1.3 mm long; veins not evident; sori slightly oblong, pushing through scale cover, impressed, adaxial surfaces embossed; sporangia glabrous.
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Discussion
Goniophlebium lepidotrichum Fe´e, Me´m. Foug. 8: 93. 1857. Lectotype (chosen by Maxon, 1916: 591). Mexico. Veracruz: Orizaba, Schaffner 451 (RB).
Unverified, Doubtful, or Mistaken Reports. Qro (Di´az-Barriga 6656, IEB, cited by Di´az-Barriga & Palacios-Rios, 1992, but not verified and doubtful, probably Polypodium rosei). Among members of the P. squamatum L. complex, P. lepidotrichum is distinct by its long pinnae, strongly reflexed rhizome scales, and the long-tipped, acicular stipe scales.
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Distribution
Epiphytic, in montane wet forests of oak and Liquidambar; 300-1850 m. Mexico.
Mexico North America|