Stigmatopteris longicaudata C.Chr.
Descripción
Rhizomes suberect; rhizome scales dark-castaneous, lustrous, lanceolate, 5–7(–10) X 1–3 mm, margins entire to denticulate; fronds 1–1.4 m long; stipes stramineous to tan, 25–70 cm long, 1⁄2–2⁄3 the frond length, with brown, ovate-lanceolate scales at stipe bases; blades pinnate, 40–60 X 20–26 cm; pinnae 12–18 pairs, 12–24 X 2–3 cm, serrately incised or lobed less than 1⁄4 their width, proximal pinnae stalked to 5 mm, all but proximal 2–4 pairs adnate and long-decurrent onto rachises, those of distal 1⁄3 of blade connected by a wing; rachises with sparse bifid or trifid scales, tips clavate; costae abaxially with sparse, tan, lanceolate, scales 0.3–0.8 mm long with clavate tips; adaxial costal grooves minutely pubescent, hairs especially dense near pinna bases; veins 3–6 pairs per segment, not united or rarely the basalmost veins casually united; sori in a double row between costules, 2–5 pairs of sori per segment.A
Forma de vida
TerrestreA
Ejemplar revisado
Chis (Breedlove 35128, DS, LL, 56494, CAS, ENCB, MICH, MO, NY; Rovirosa 822, K, PH). Oax (Mickel 5662, ENCB, NY, UC, US, 6543, NY, UC). Pue (Ventura A. 484, ENCB, LL, NY). Ver (Finck 169, UC; Nee et al. 26382, F, NY, XAL, Z).A
Elevación
450 – 1700(– 2250) mA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
The once-pinnate blades with shallowly lobed and longdecurrent pinnae distinguish S. longicaudata from S. sordida.A