Notholaena copelandii C.C.Hall

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Notholaena copelandii C.C.Hall

Descripción

Similar to N. candida, differing in: blade apices abruptly contracted to a fairly well defined terminal pinna, and the basal pinnae with a single basiscopically exaggerated pinnule; 2n=60 (NL, Tam).A

Forma de crecimiento

Hierba

Forma de vida

Terrestre

Nutrición

Autotrófica

Ejemplar revisado

Coah (Johnston 7205, US; Sánchez 784, MEXU). Hgo (Hinton 21139, UC). NL (Dorr 2586, NY; Pennell 16949, MEXU, NY; Windham 468, NY). Tam (Bartlett 10586, MICH; King 4528, NY; Palmer 191, NY; Stanford et al., 2137, NY).
Unverified, Doubtful, or Mistaken Reports. SLP (Purpus 5484, F, US, 4876, C, 4877, F, UC, US, all cited by Hall, 1950, but not verified).
A

Distribución

México (país) Nativo y no endémicoA, Norteamérica al N de México PresenteA

Elevación

300 – 1500 mA

Ecología y Hábitat

Rocky slopes and cliffs, apparently confined to limestone.A

Tipo de vegetación

Matorral de otro tipoB

Categoría IUCN

No incluidaC

Categoría NOM-059-SEMARNAT-2010

No incluidaD

Estatus del taxón

(A) Como definida actualmente, probablemente una entidad natural (monofilética)

Discusión taxonómica

Notholaena copelandii often has been treated as a variety of N. candida. The two taxa show differences in chemical composition of the farinose indument (Wollenweber, 1984), and isozyme data indicate that Notholaena copelandii and N. candida are distinct (Windham, in FNA Ed. Comm., 1993); however, few intermediate specimens occur in Coahuila. Several specimens in other parts of the country (Chiapas, Oaxaca, Guerrero, Nayarit, Zacatecas) resemble Notholaena copelandii in having a single exaggerated basiscopic pinnule and somewhat abruptly narrowed blade apices, suggesting that there is some variability in these characters. However, the basiscopic basal pinnules in these specimens tend to be larger than those of N. copelandii and the blade apices are not as abruptly narrowed. Probably these specimens from southern and western states are aberrant specimens of N. candida.
Notholaena copelandii differs from N. jacalensis in its wider blades: (3–)4–7.5 cm wide (vs. 2.5–4 cm in N. jacalensis).
A

Bibliografía

A. Mickel, J. T. & Smith, A. R. 2004: The Pteridophytes of Mexico Vol. 88
B. Velázquez Montes, E. 2019: Familia Pteridaceae. En: Rzedowski, J. & Hernández Ledesma, P. (Eds.). Fl. Bajío Regiones Adyacentes Fasc. 210: 1-249
C. IUCN 2022: The IUCN Red List of Threatened Species. Versión 2022-2
D. 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]