Pleopeltis fallacissima (Maxon) A.R.Sm. & Tejero
Descripción
Rhizomes creeping, 1 mm diam.; rhizome scales bicolorous, each with black-clathrate center and narrow pale fringed margins, tan, lanceolate, 1.5–2 X 0.5 mm; fronds 3.5–9.5 cm long, subapproximate; stipes ca. 1⁄3 the frond length, stramineous, with scattered scales grading from black-centered at base to concolorous but still with thicker walled isodiametric cells in center and elongate cells at fringed margins, lanceolate with cordate bases; blades pinnatifid, elliptic, (0.5–)1–2 cm wide, decurrent at bases; pinnae (0–)1–2 pairs, 8–20 X 2.5–4 mm, narrowly oblong and ascending at ca. 45° to rachises; abaxial surfaces with scattered to dense scales as on stipes, ovate to lanceolate, concolorous but with thick-walled isodiametric cells; adaxial surfaces glabrous, lime-dots absent; veins obscure; sori round, medial; sporangia glabrous.A
Forma de vida
Epipétrica.A
Ejemplar revisado
(Related to the synonym Polypodium fallacissimum) Coah (Arce s.n., 31 Aug 1986, ANSM; Cowan 3806, TEX, UC; de la Rosa I. & Villarreal 1607, ANSM, MSC, XAL, UC; Koch & González L. 8655, NY; Lyonnet 43100001, MEXU, TEX, UC; Palmer 425, F, UC; Villarreal & Carranza 1729, ANSM). NL (Hinton 20138, TEX; Ramirez A. s.n., 1 Feb 1980, UNL).A
Distribución
México (país) EndémicoA
Elevación
2150 – 2200 mA
Ecología y Hábitat
On rocky slopes.A
Tipo de vegetación
Bosque de encino, Matorral de otro tipoA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
(In relation to the synonym Polypodium fallacissimum) This species closely resembles Polypodium riograndense and small specimens of P. thyssanolepis, but is distinct in its pinnae being oblique to the rachis and the large laminar scales. Polypodium fallacissimum is like P. guttatum in its yellow-green blades and fringed blade scales. Polypodium riograndense also differs in having caudate blade scales with pronounced teeth.A
Bibliografía
C. SEMARNAT 2019: MODIFICACIÓN del Anexo Normativo III, Lista de especies en riesgo de la Norma Oficial Mexicana NOM-059-SEMARNAT-2010: 101 pp. – https://www.dof.gob.mx/nota_detalle.php?codigo=5578808&fecha=14/11/2019#gsc.tab=0 [accessed 2023-05-04 06:16]