Phanerophlebia juglandifolia (Willd.) J.Sm.
Descripción
Rhizomes short, suberect, not branched; rhizome scales light brown, bicolorous with broad to narrow dark brown or sclerotic centers and tan ciliate margins, ovate-lanceolate, 3–10 X 1.5–5 mm; fronds mostly 60–90 cm long; stipes stramineous, equaling or longer than blades, with a few, brownish, ovate, usually overlapping scales 6–11 mm long similar to those of the rhizomes and scattered, twisted, hair-like scales 1–2 mm long; blades ovate, 20–45 cm long; rachises sparingly scaly to glabrescent; pinnae 2–4(–6) lateral pairs, elliptic to ovate, subfalcate, 9–10(–20) X 2–3(–5) cm, bases rounded to broadly cuneate, often inequilateral, apices acute to acuminate, margins entire to spinulose only in distal 1⁄3, costae and veins abaxially with rare to sparse minute, hair-like scales 0.5–0.8 mm long on costae, 0.1–0.3 mm long on veins; buds present or absent in axils of distal pinna, 0–1(–6) per blade; veins 3–5-branched, ± regularly anastomosing about midway between costae and margins; sori in 3–4(–6) series between costae and pinna margins, inner row 2–3 mm from costae, outer row 2–3 mm from margins; indusia absent; spores 41–60 µm long; 2n=164 (Chis, as P. cf. remotispora, CR).A
Forma de vida
TerrestreA
Ejemplar revisado
Chis (Breedlove 26840, DS, MEXU, NY, 34692, CHAPA, DS, NY, 41708, 42564, DS, MEXU, 46731, 48670, CAS; Dressler 1613, NY, US). Hgo (Hernández M. 5916, ENCB, MO).
Unverified, Doubtful, or Mistaken Reports. Gro (Lozano V. 215, FCME, cited by Lorea-Hernández & Velázquez M., 1998, but not verified; this could also be P. gastonyi).
A
Unverified, Doubtful, or Mistaken Reports. Gro (Lozano V. 215, FCME, cited by Lorea-Hernández & Velázquez M., 1998, but not verified; this could also be P. gastonyi).
A
Elevación
(700 –)1350 – 2700 mA
Ecología y Hábitat
In wet forests.A
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
Phanerophlebia juglandifolia is distinct in its few pinna pairs, regularly anastomosing veins, and in the usual presence of a bud in the axil of a distal pinna. However, this last character is not always reliable in Mexico, as several specimens lack buds. Nor is it very reliable in Central America, where all 12 specimens (in UC) from Costa Rica lack buds, as do 4 of 6 Panamanian specimens seen.
The species is very closely related to P. gastonyi (which see) and thought to be an allopolyploid derivative of that species (Yatskievych, 1992, 1996). Specimens cited as this species by Mickel and Beitel (1988) are P. gastonyi (Mickel 6044, 6182), as determined by Yatskievych.
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The species is very closely related to P. gastonyi (which see) and thought to be an allopolyploid derivative of that species (Yatskievych, 1992, 1996). Specimens cited as this species by Mickel and Beitel (1988) are P. gastonyi (Mickel 6044, 6182), as determined by Yatskievych.
A