Niphidium crassifolium (L.) Lellinger

  • Authority

    Mickel, John T. & Beitel, Joseph M. 1988. Pteridophyte Flora of Oaxaca, Mexico. Mem. New York Bot. Gard. 46: 1-580.

  • Family

    Polypodiaceae

  • Scientific Name

    Niphidium crassifolium (L.) Lellinger

  • Description

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    Species Description - Rhizome short-creeping, 7-10 mm diam.; rhizome scales 5-7 mm long, 1.5-2 mm wide, clathrate, margin membranous, pale, entire; fronds 35-125 cm long, clumped; stipe lacking to 30 cm long; blade narrowly elliptic to oblanceolate, gradually narrowed at the base, apex acuminate, 4.5-11 (-14) cm wide, glabrous, coriaceous, rachis with a few scattered scales, 2-3 mm long; lateral primary veins prominent, to margin, veins netted, crossveins obscure, anaxetoid; sori large, round, mostly ca. 3 mm diam. (2-5 mm), solitary in major areoles, forming single rows of 6-10 sori between main veins; sporangia setose (several short hairs per sporangium), paraphyses usually common among sporangia.

  • Discussion

    Polypodium crassifolium Linnaeus, Sp. pl. 2:1083.1753. Pessopteris crassifolia (Linnaeus) Underwood & Maxon, Contr. U.S. Natl. Herb. 10: 485. 1908. Lectotype (chosen by Lellinger, 1972: 106). Petiver, Pterid. amer., t. 6, f. 1. 1712, which is a redrawing of Plumier, Traité foug. Amér., t. 142. 1705, illustrating a plant from Martinique.

  • Distribution

    Epiphytic or epipetric; Cuicatlán, Ixtlán, Mixe, Pochutla, Tehuantepec, Teotitlán, Tuxtepec, Villa Alta; 400-1700 m. Mexico (Qro, Ver, Pue, Oax, Chis); Guat to Pan; WI; Col to Sur, s to Bol & Braz.

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