Psilotum nudum (L.) P.Beauv.

  • Authority

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

  • Family

    Psilotaceae

  • Scientific Name

    Psilotum nudum (L.) P.Beauv.

  • Description

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    Species Description - Plants erect or arching, mostly 20-60 cm long; main aerial stems 1-1.5 mm diam., terete or angled, 3-7 times dichotomously branched; ultimate branches ca. 0.8 mm diam.; enations 1-1.5 mm long.

  • Discussion

    Lycopodium nudum Linnaeus, Sp. pl. 2: 1100. 1753. Psilotum triquetrum Swartz, J. Bot. (Schrader) 1800(2): 109. 1801. Type. “In Indiis.” LINN 1257.1. For additional synonymy, see Proctor (Fl. L. Antill. 2: 16, 18. 1977). The slender, terete to angled aerial stems readily distinguish this species from P. complanatum.

  • Distribution

    Epiphytic in wet montane forests, also among rocks; 160-1000 m. Mexico (Socorro Isl., Son, Jal, Col, Mex, DF, Tam, Ver, Chis); se US; Guat to Pan; WI; Col, to Bol, Braz, Parag & Arg; Old World tropics. Not yet found in Oaxaca.

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