Phanerophlebia pumila (M.Martens & Galeotti) Fée
Descripción
Rhizomes short, erect, unbranched; rhizome scales concolorous, brown, ovate, 3–5 X 2–3 mm, margins ciliate-denticulate; fronds mostly 10–30(–45) cm long; stipes usually 1⁄2 or more of the frond length, stramineous to tan, with dense, persistent, lanceolate scales toward bases, scales becoming filiform distally, sometimes abraded, (3–)5–10 X 0.2–1.5 mm; blades ovate, subcoriaceous, (3.5–)6–20(–35) cm long; rachises with scattered to dense, filiform scales; buds absent from axils of distal pinnae; pinnae 0–3(–4) lateral pairs, ovate to lanceolate, straight or subfalcate, to 1.5–8(–12) X 1–2(–3) cm, the terminal usually the largest, bases rounded to truncate or subcordate, apices rounded to acute, lowermost pinnae inequilateral, excavate basiscopically, sometimes subauriculate acroscopically, margins spinulose throughout; veins free or only occasionally casually anastomosing near pinna margins, 2–3-branched; sori in 1–3 series between costae and margins, inner row (1–)2–5 mm from costa, outer row 2–4 mm from margin; indusia subpersistent, tan, 0.8–1.5 mm diam., flat or convex, not umbonate, erose at margins; 2n=164 (Chis, Oax).A
Forma de vida
Epipétrica. -no state-A
Ejemplar revisado
Chis (Breedlove 31816, DS, MEXU, TEX; 55521, DS). Gro (Nelson 2222, UC, US). Mich (Hinton 12428, LL, MEXU, US, 15935, ENCB, MEXU, NY, US). Oax (Breckon & Christman 622, IEB, UC; Gereau & Martin 2011, NY; Hallberg 848, MEXU; Yatskievych 85-139, ARIZ).
Unverified, Doubtful, or Mistaken Reports. Qro (Fernández 4585, ENCB, Rzedowski 42551, IEB, and Rzedowski 46146, QMEX, cited by Arreguín et al., 2001, none seen, but Rzedowski 42551 is P. nobilis at ENCB, UAMIZ).
A
Unverified, Doubtful, or Mistaken Reports. Qro (Fernández 4585, ENCB, Rzedowski 42551, IEB, and Rzedowski 46146, QMEX, cited by Arreguín et al., 2001, none seen, but Rzedowski 42551 is P. nobilis at ENCB, UAMIZ).
A
Elevación
2000 – 2950 mA
Ecología y Hábitat
In rock crevices, limestone sinks, and on cliffs.A
Tipo de vegetación
Bosque de neblina/mesófiloA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
Phanerophlebia pumila is distinguished by having free veins, large persistent indusia, coriaceous texture, and few pairs of cordate-based pinnae. Rzedowski 42551 and 44614b (IEB), from Querétero, were cited by Díaz-Barriga and Palacios-Rios (1992) as P. pumila, but are merely juvenile sterile or nearly sterile forms of P. nobilis, with 1–4 pairs of lateral pinnae; the pinnae are less coriaceous and not cordate, thus agreeing better with P. nobilis, which is common in Querétero.A