Bolbitis pergamentacea (Maxon) Ching

  • Authority

    Mickel, John T. & Smith, Alan R. 2004. The pteridophytes of Mexico. Mem. New York Bot. Gard. 88: 1-1054.

  • Family

    Dryopteridaceae

  • Scientific Name

    Bolbitis pergamentacea (Maxon) Ching

  • Description

    Species Description - Rhizomes long-creeping, to 10 mm diam.; rhizome scales brown, ca. 6 x 4 mm, entire; fronds subdistant, 50–140 cm long; stipes 20–80 cm x 3–10 mm, those of sterile fronds ca. 1/2 the sterile frond length, those of fertile fronds nearly 2/3 the fertile frond length, with scattered scales; sterile blades firmly chartaceous, ovate to elliptic, 25–60 x 20–50 cm, pinnate, each blade with a conform terminal pinna, not proliferous; sterile pinnae (0–)2–6 pairs, proximal pinnae stalked, somewhat unequally elliptic, with cuneate bases and acuminate apices, margins entire to obscurely undulate; veins finely areolate, areoles with excurrent and recurrent, often branched, free veinlets; fertile blades once-pinnate, 12–45 cm long, with 1–3 pairs of lateral pinnae and a slightly larger terminal pinna; sporangia covering the abaxial surfaces of fertile blades; 2n=82 (Jam).

  • Discussion

    Leptochilus pergamentaceus Maxon, J. Wash. Acad. Sci. 14: 144. 1924. Type. Jamaica. Green River Valley, Underwood 1426 (US!-2 sheets).

    The lack of axillary buds and pinnae with more or less symmetric bases distinguish this species from B. hemiotis

  • Distribution

    Wet lowland forests; 200-600 m. Mexico; Guat, Bel, Hond, Nic, CR, Pan; Gr Ant; Col, Ven, Ec. Also cited from Peru by Hennipman & Moran (in Davidse et al. 1995: 249).

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