Campyloneurum costatum C.Presl

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Campyloneurum costatum C.Presl

Descripción

Rhizomes short-creeping, not pruinose, 3–6 mm diam.; rhizome scales dense, brown, lustrous, narrowly lanceolate, 3–5 X 0.8–1(–1.5) mm, clathrate, the cells elongate, at least twice as long as wide; fronds 20–60 cm long, crowded to somewhat distant; stipes 1⁄10–1⁄5 the length of the blades; blades chartaceous to subcoriaceous, oblanceolate or obovate-lanceolate, 3–6 cm wide, bases attenuate or narrowly cuneate, apices generally caudate; lime dots absent adaxially; areoles 5–10 rows between midribs and margins, excurrent veinlets 3 or 4 per primary areole, the middle one completely bisecting the areole; main lateral veins inconspicuous or faintly visible on both sides, secondary veins regularly anastomosing; sori 5–10-seriate between the midribs and blade margins, in two very regular rows between main lateral veins, 2 sori per primary areole; 2n=74 (CR, Jam).
A

Forma de crecimiento

Hierba

Forma de vida

or on limestone rocks. EpífitaA

Nutrición

Autotrófica

Ejemplar revisado

Chis (Breedlove 33188, 33190, DS, MEXU; Palacios-Rios 2802, UC; Reyes-García & Sousa S. 2257, MEXU). Oax (Mickel 1449, US). Ver (Vera-Santos 3010, US).A

Distribución

Caribe PresenteA, Centroamérica: Belice PresenteA; Costa Rica PresenteA; Guatemala PresenteA; Honduras PresenteA; Nicaragua PresenteA; Panamá PresenteA, México (país) Nativo y no endémicoA, Norteamérica al N de México PresenteA, Sudamérica PresenteA

Elevación

300 – 750 mA

Tipo de vegetación

Selva altaA

Categoría IUCN

No incluidaB

Categoría NOM-059-SEMARNAT-2010

No incluidaC

Estatus del taxón

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

Discusión taxonómica

This species has features of both C. xalapense and C. serpentinum, and differs from the former in having shorter petioles, oblanceolate blades, and growing at generally lower elevations. It is a much less common species than is C. xalapense. From C. serpentinum (and C. repens) it differs in its shorter-creeping rhizomes and much less obvious secondary venation, and thinner blade texture.
Campyloneurum aphanophlebium (Kunze) T. Moore, which bears short hairs on the petioles and abaxially at the bases of the blades, apparently does not occur in Mexico, although it is known from Belize, Honduras, and further south (León, 1992, and in Davidse et al., 1995).
A

Bibliografía

A. Mickel, J. T. & Smith, A. R. 2004: The Pteridophytes of Mexico Vol. 88
B. IUCN 2022: The IUCN Red List of Threatened Species. Versión 2022-2
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]