Vandenboschia radicans (Sw.) Copel.
Descripción
Rhizomes stout, 1–2 mm diam., long-creeping; rhizome hairs dense, slender, brown, 1 mm long, and also with occasional thick, dark brown hairs 1–1.5 mm long at frond bases and on stipes; roots absent on climbing stems; fronds 22–30 cm long, distant; stipes ca. 1⁄4 the frond length, stout, flattened, 0.8–1 mm wide, alate 3⁄4 of the way to bases, with scattered, short, glandular hairs 0.1 mm long; blades bipinnate to tripinnate-pinnatifid, 6–10 cm wide, ovate to lanceolate, barely reduced at bases; rachises alate, glabrous except for stubby blackish hairs; pinnae 12–18 pairs, lanceolate, ultimate segments 0.5–0.8 mm wide, margins entire; veins free, false veins absent; sori terminating segments; involucres free from or barely immersed in blade tissue, elongate, 1.8–2 mm long, 0.5–0.8 mm wide at middle, 0.3 mm wide at bases, lips erect, straight or only slightly flaring, concolorous; 2n=72 (Chis, Jam).A
Forma de vida
EpífitaA
Ejemplar revisado
(Related to the synonym Trichomanes radicans) Chih (Correll & Gentry 23088, F, MO, NY, UC, US). Chis (Breedlove 29454, NY). Dgo (Sanders et al. 4876, UC). Gro (Hinton 14165, NY). Hgo (Moore 5345, US). Jal (McVaugh 20439, MICH). Méx (Tejero-Díez 2966, IZTA). Mich (Rzedowski 46274, XAL). Mor (Lyonnet 2861, US). Oax (Pringle 4677, NY). Pue (Barnes & Land 497, NY). Qro (Rubio 391, ENCB, MEXU). SLP (Rzedowski 10952, NY). Ver (Müller 390, NY).
Unverified, Doubtful, or Mistaken Reports. Tab (Linden 1508, cited by Rovirosa, 1909, but not verified; Rovirosa 1033, s. herb., cited by Cowan, 1983, but not verified).A
Unverified, Doubtful, or Mistaken Reports. Tab (Linden 1508, cited by Rovirosa, 1909, but not verified; Rovirosa 1033, s. herb., cited by Cowan, 1983, but not verified).A
Elevación
(600 –)1250 – 2450 mA
Tipo de vegetación
Bosque de neblina/mesófilo, Selva altaA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
(In relation to the synonym) Trichomanes radicans closely resembles T. collariatum in its relatively large fronds and long-creeping rhizomes but is distinct by its involucres with narrow, non-flared lips, long stipes, and broad blades.
Specimens from northern states of Mexico are often named T. boschianum J. W. Sturm, a species of the eastern United States, but transitional forms suggest that these small Mexican specimens are merely dwarf forms of T. radicans.A
Specimens from northern states of Mexico are often named T. boschianum J. W. Sturm, a species of the eastern United States, but transitional forms suggest that these small Mexican specimens are merely dwarf forms of T. radicans.A