Saccoloma inaequale (Kunze) Mett.

  • Authority

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

  • Family

    Saccolomataceae

  • Scientific Name

    Saccoloma inaequale (Kunze) Mett.

  • Description

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    Species Description - Rhizomes erect, to 20 mm diam.; rhizome scales bicolorous, central portion dark brown, lustrous, margins thin, erose, lighter brown, linear-lanceolate, 3–4 x 1–1.5 mm; fronds mostly 70–120 cm long (to 2 m), clumped; stipes nearly 1/2 the frond length, to 1 mm diam., green-yellow to black at bases, grooved, with minute bumps proximally; blades deltate, 40–90 cm wide, bipinnate to quadripinnate-pinnatifid; pinnae 4–7 pairs, alternate, inequilateral, petiolulate (stalks of proximal pinnae 0.5–1.5 cm); segments lanceolate-deltate to obliquely oblong, 1–2 cm long, sessile, distal segments adnate-decurrent, bases cuneate, margins serrate to lobed, slightly incurved, glossy dark green above, slightly lighter below, glabrous with minute papillae, coriaceous; veins free, nearly reaching the segment margins; vertical wing present on costae adaxially; sori submarginal, one per segment lobe, terminal on veins, 1x 0.8 mm, usually impressed and surfaces embossed adaxially; indusia glabrous, crenulate, adnate to the blade along three sides forming a conical cup just back from the margin; 2n=126 +/– 4 (Chis).

  • Discussion

    Davallia inaequalis Kunze, Linnaea 9: 87. 1834. Type. Peru. Loreto: Near Yurimaguas, Poeppig, Diar. 2113 (LZ, destroyed; isotype B!, photo GH!, frag. US!).

    Microlepia galeottii Fe´e, Me´m. Foug. 5: 327. 1852. Type. Mexico. Teotalcingo, Galeotti 6526 (P?, not found).

    Microlepia caudata Fe´e, Me´m. Foug. 5: 327. 1852. Type. Mexico. Galeotti 6527 (P!).

    For additional synonymy, see Proctor, Fl. L. Antill. 2: 118. 1977

    Unverified, Doubtful, or Mistaken Reports. Gro (Lorea 2108, FCME; Vela´zquez 817, FCME, cited by Lorea-Herna´ndez & Vela´zquez M., 1998, but not verified). The dark green, coriaceous, highly dissected blades resembles those of Dennstaedtia bipinnata, but Saccoloma inaequale is distinct by its erect, scaly rhizomes and submarginal (vs. marginal) sori.

  • Distribution

    Wet montane forests on Atlantic slope; 150- 2000 m. Southern and eastern Mexico; Guat, Bel, Hond, Nic, CR, Pan; Cuba, PR; Col, Ven, Trin, Guy, Sur, Fr Gui, Ec, Peru, Braz, Bol.

    Mexico North America| Bolivia South America| Brazil South America| Peru South America| Ecuador South America| French Guiana French Guiana South America| Suriname South America| Guyana South America| Trinidad and Tobago South America| Venezuela South America| Amazonas Colombia South America| Puerto Rico South America| Cuba South America| Panama Central America| Costa Rica South America| Nicaragua Central America| Honduras Central America| Belize Central America| Guatemala Central America|