Diplazium ternatum Liebm.
Descripción
Rhizomes short-creeping to erect; rhizome scales concolorous, dark brown to black, deltate, 0.8–1 X 0.5–0.8 mm, entire; fronds 20–55 cm long; stipes green to brownish green, 24–36 cm X 1–2 mm, 1⁄2–2⁄3 the frond length, lacking scales or hairs except at the very base; blades thick-herbaceous, pinnately tripinnate, 9–20 cm long, each blade often with a proliferous bud at the base of a lateral pinna; rachises brownish green, with a bud in the axil of one of the lateral pinnae; pinnae sessile to short-stalked 1–2 mm, 2 lateral pinnae plus a terminal pinna per blade, longacuminate, lanceolate, falcate, terminal pinna ± conform, or often slightly larger than lateral pinnae, stalked 1–2.5 cm, all 3 pinnae coarsely and doubly serrate, especially toward pinna tips; veins usually free except sometimes the anterior branch in a vein group (the primary, soriferous veinlet), which forks and usually reunites to form a narrowly elliptic areole, 2–3 pairs of veins per vein group, all curving abruptly toward pinna margins and running ± parallel to each other; indument absent on all parts of the blades; sori diplazioid or single on a given vein, often restricted to the acroscopic vein branch of a vein group, with entire indusia 5–20 X 0.5–0.7 mm wide; 2n=164 (Oax, Hond).A
Forma de vida
Epipétrica o TerrestreA
Ejemplar revisado
Chis (Breedlove 32387, DS, NY, 34378, DS). Gro (Lorea 3025, FCME, IEB). Hgo (Hernández M. 5354, US; Estrada s.n., 2 Nov 1974, NY). Oax (Hernández G. 1642, CHAPA, NY; Wendt et al. 5163, CHAPA, MEXU, MO, NY). Pue (Rzedowski 32436, ENCB; Ventura A. 394, ARIZ, ENCB, NY). Ver (Ventura A. 5117, ARIZ, 15226, ENCB, IEB, NY).
A
A
Elevación
500 – 2200 mA
Ecología y Hábitat
Mostly on Atlantic slope, on wet rocks.A
Tipo de vegetación
Bosque de neblina/mesófiloA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
This is most closely related to D. plantaginifolium, with which it agrees in the buds at the bases of blades, similar venation, and undivided pinnae. See D. plantaginifolium for a discussion of a putative hybrid.
A
A