Pteris orizabae M.Martens & Galeotti
Descripción
Rhizomes erect, stout; rhizome scales 3–4 X 0.3–1 mm, bicolorous, centers black, sclerotic, margins light, brown, fimbriate; fronds 1–2 m long; stipes ca. 1⁄2 the frond length, stramineous, glabrous; blades bipinnate-pinnatifid; pinnae petiolulate to 6 mm, bases long-cuneate; ultimate segments acute, margins and mucronate teeth thickened, adaxial surfaces glabrous, margins with occasional hairs, abaxial surfaces pubescent with hairs 0.3–0.8 mm, hairs usually flaccid or appressed; rachis awns absent or reduced to minute papillae; pinna awns 0.5–0.8 mm long; veins netted, ending before bases of sinuses, one long areole between adjacent costules; indusia 0.8 mm wide, entire, with flange 0.3 mm wide along recurved margins, with scattered hairs or glabrous; sporangia mixed with paraphyses 0.5–0.8 mm long; spores reddish brown; 2n=ca. 116 (Chis).A
Ejemplar revisado
Chis (Breedlove 34409, DS, ENCB). DF (Lyonnet 3310, MEXU, US). Gro (Lorea 2294, FCME). Hgo (Moore 5280, MEXU, US). Jal (McVaugh 13918, MEXU, MICH, US). Méx (Arreguín 503, ENCB, MEXU). Mich (Santos Martínez 2108, IEB, MEXU). Mor (Lyonnet 1361, US). Oax (Mickel 4384, ENCB, NY). Pue (Tenorio L. 15414, MEXU). Qro (Rzedowski 45210, IEB). Ver (Ventura A. 272, ENCB).A
Elevación
300 – 2700 mA
Ecología y Hábitat
Margins of wet montane forests.A
Tipo de vegetación
Selva alta, Bosque de neblina/mesófilo, Bosque de encinoA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
Pteris apicalis Liebm. was an avowed substitute name for P. orizabae, with the same type, and therefore superfluous. Pteris apicalis was substituted for P. orizabae because Liebmann protested in a vitriolic manner (it turns out, wrongly) against calling this species “orizabae” as it “is not found at all on Volcan Orizaba” in Veracruz. It is an interesting example of what low esteem Liebmann had for the work of Martens and Galeotti, as shown by his statement: “It is deplorable that the authors should have had so slight regard for science, the truth and themselves, that rebukes of this sort are needed” (translation).
Pteris orizabae is closely related to P. podophylla and P. erosa (q.v.) but differs in larger plant size, entire indusial margins, and more easterly distribution. It is also related to P. propinqua, which has cuneate pinna bases that become decurrent basiscopically (vs. only acroscopically). Pteris propinqua also has glabrous abaxial costal surfaces (vs. bearing jointed golden hairs). Stolze (1981) incorrectly synonymized P. orizabae under P. polita Link, the type (frag. NY!) of which has free veins.
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Pteris orizabae is closely related to P. podophylla and P. erosa (q.v.) but differs in larger plant size, entire indusial margins, and more easterly distribution. It is also related to P. propinqua, which has cuneate pinna bases that become decurrent basiscopically (vs. only acroscopically). Pteris propinqua also has glabrous abaxial costal surfaces (vs. bearing jointed golden hairs). Stolze (1981) incorrectly synonymized P. orizabae under P. polita Link, the type (frag. NY!) of which has free veins.
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