Tectaria incisa Cav.

  • Authority

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

  • Family

    Tectariaceae

  • Scientific Name

    Tectaria incisa Cav.

  • Description

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    Species Description - Rhizome erect; rhizome scales concolorous, brown, 3-5 mm long, 0.8-1 mm wide, margin strongly fimbriate; fronds mostly 70-170 cm long; stipe about equaling blade, stramineous to brownish, with scattered 0.1 mm long hairs; blade once-pinnate, oblong to ovate-oblong, 40-7 5 cm long, 20-60 cm wide; rachis glabrous or glabrescent, not gemmiferous in axils of pinnae; pinnae 3-10 pairs, oblique, terminal pinna with decurrent base, distal pinnae adnate basiscopically with decurrent base, basal pair short-stalked (to 5 mm), with an elongate, acute, basal, basiscopic lobe, otherwise subentire or undulate, other pinnae mostly 20-25 cm long, 3.5-6(-7) cm wide; costae and costules glabrous below or with scattered 0.1 mm long hairs on veins, adaxial costae with dense to scattered 0.1 mm long hairs; areoles pentagonal or hexagonal, included free veinlets common; sori in two rows, one on either side of main lateral veins; indusia persistent, reniform or round, with a basal sinus, lobes overlapping, indusia thus appearing peltate, 1-1.3 mm diam., glabrous.

  • Discussion

    Type. Puerto Rico. Ventenat s.n. (MA, seen by Christensen, Dansk Bot. Ark. 9(3): 14. 1937). Aspidium martinicense Sprengel, Anleit. Kenntn. Gew. 3:133.1804. Aspidium macrophyllum Rudolphi, Bemerk. Geb. Naturges. 2: 103. 1805, nom. illeg. superfl. Tectaria martinicense (Sprengel) Copeland, Phillip. J. Sci., Bot. 2: 410. 1907. Type. Santo Domingo [Hispaniola]. Poiteau s.n. [incorrectly said to be from Martinique by Sprengel]. For additional synonymy, see Morton (1966). See T. vivípara and T. transiens for comparison and discussion. The non-peltate indusia, 3-10 lateral pairs of pinnae with decurrent bases, terminal segment with a cuneate base, and basal pinnae with a single basiscopic lobe distinguish T. incisa from T. heracleifolia.

  • Distribution

    Slopes and stream banks; Choa-pan, Ixtlán, Juchitán, Pochutla, Putla, Tuxtepec, Villa Alta; 50-800 m. Mexico (Ver, Gro, Oax, Chis, Tab); Guat to Pan; WI, Trin; Col & Fr Gui, to Bol & Braz.

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