Phanerophlebia macrosora Underw.
Descripción
Rhizomes suberect to erect, unbranched; rhizome scales concolorous, tan, ovate-lanceolate, 10–12(–15) X 5–7 mm, margins ciliate-denticulate; fronds 70–135(–200+) cm long; stipes 1⁄3–1⁄2 the frond length, stramineous, densely scaly with mostly spread ing tan, persistent scales similar to those of rhizomes; blades ovate to deltate, 40–90 cm long, smelling like a skunk when fresh; rachises with scattered to dense, pale, ovate, denticulate, caducous scales mostly 1–3 mm long, the narrowest ones twisted, hairlike; buds absent from axils of distal pinnae; pinnae 6–17 lateral pairs, linear-lanceolate, straight to slightly falcate, (8–)15–25 X 2–4.5 cm, bases inequilateral, broadly cuneate to rounded, the proximal ones basiscopically excavate, with auricles acroscopically, margins faintly crenulate and minutely spinulose; veins free, 3–4-branched; sori round, in 3–5 series between costae and pinna margins, inner row 2–3 mm from costa, outer row 1–10 mm from costa; indusia tan, caducous, 0.8–1 mm diam., flat or concave centrally, erose, not umbonate; 2n=82 (Oax, CR).A
Forma de vida
TerrestreA
Ejemplar revisado
Chis (Breedlove 41713, DS; Matuda 5230, LL, MEXU, TEX). Gro (Lorea 4090, FCME; Martínez S. 5067, ARIZ, ENCB, MEXU, UAMIZ). Hgo (Croat & Hannon 65955, UC; Rebolledo V. 291, CHAPA, ENCB, NY). Méx (Tejero-Diéz 2255, IZTA). Mich (Rzedowski 46201, UAMIZ). Oax (Yatskievych 83-467, UC). Ver (Narave F. 319, IEB, XAL, 370, XAL).
A
A
Elevación
1550 – 2750 mA
Ecología y Hábitat
At middle to higher elevations.A
Tipo de vegetación
Bosque de neblina/mesófilo, Bosque de pinoA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
Phanerophlebia macrosora is distinct by its many pinna pairs, free veins, and rather densely scaly stipes. When fresh, plants produce a strong, unpleasant, skunk-like odor (Mickel & Beitel, 1988; Yatskievych, 1996), apparently the only species in the genus that has this characteristic. Putative hybrids with P. juglandifolia are known from Costa Rica (e.g., Yatskievych 86-31a, NY, UC). Fuentes 760 (CHAPA, NY), from Jalisco, determined as this species by Mickel (1992), is P. nobilis. Croat & Hannon 65955, from Hidalgo, was cited by Yatskievych (1996) as P. nobilis var. remotispora.A