Polyphlebium capillaceum (L.) Ebihara & Dubuisson
Descripción
Rhizomes very fine, 0.1–0.3 mm diam., long-creeping, filamentous; rhizome hairs sparse to abundant, brown, 0.3 mm long; roots present; fronds 5–10(–15) cm long, distant, glabrous; stipes ca. 1⁄4 the frond length, 0.1–0.5 mm diam., glabrous, non-alate, green to stramineous (darker at base); blades lanceolate, ovate to oblanceolate, light yellow-green, membranaceous, 3–4-pinnate, 1–5 cm wide, proximal pinna pairs slightly reduced; rachises nonalate; pinnae non-alate in proximal third, ultimate segments filiform, 0.1–0.4 mm wide, emarginate, margins entire, plane; veins free, false veins absent; sori often 1(–4) per pinna, terminating proximal veinlets; involucres stalked and free from the tissue, 0.3–0.5 mm wide at middle, 1.5 mm long, mouth flared, 0.8–1 mm wide, entire; 2n=72 (CR, Jam).A
Forma de vida
o raramente epipétrica. EpífitaA
Ejemplar revisado
(Related to the synonym Trichomanes capillaceum) Chis (Breedlove 23142, MICH, 33027, DS, MICH). Gro (Hinton 14307, NY, US; Rzedowski 18611, MICH). Méx (Tejero-Díez 2899, IZTA). Mor (Lyonnet 2860, CHAPA, ENCB, MEXU, US). Oax (Mickel 1024, MICH, NY, 6585, NY). Pue (Rzedowski 29972, NY). Tab (Cowan 2902, CAS). Ver (Pringle 8173, CAS, P, UC, US; Purpus 2411, UC).A
Elevación
900 – 2600 mA
Ecología y Hábitat
On tree fern trunks or rarely on wet rocks by streams.A
Tipo de vegetación
Selva alta, Bosque de neblina/mesófiloA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
(In relation to the synonym Trichomanes capillaceum)The very finely dissected blades, filiform segments, and nonalate stipes distinguish T. capillaceum. Specimens from Oaxaca and farther north in Mexico are typical of the species, whereas in Chiapas intermediates between T. capillaceum and T. angustatum were reported by Smith (1981). Trichomanes angustatum has broader ultimate segments 0.5–0.7 mm wide and costae alate to the main rachis.A