Gymnosphaera salvinii (Hook.) S.Y.Dong
Descripción
Trunks 3–6 m tall; stipes atropurpureous, tuberculate, with 6–10 pairs of reduced skeletonized pinnae (aphlebiae); stipe spines absent; stipe scales castaneous, 2–3 mm wide, with pale erose margins and short ephemeral apical setae, reduced squamulae intermixed; blades to 3.5 m long, 3-pinnate to 3-pinnatepinnatifid, pinnae subsessile to stalked 0.5–4 cm, pinnules sessile to short-stalked 3 mm long at bases; segments 1.2–2.4 cm wide, cut shallowly to halfway to the midvein, glabrous; rachises and costae atropurpureous to dark brown, with dark brown marginate scales and bullate scales, costae hairy adaxailly; veins 1–2- forked, basal lobes with veins 2-forked to pinnate; sori medial, naked; indusia absent.A
Forma de vida
TerrestreA
Ejemplar revisado
(Related to the synonym Alsophila salvinii) Chis (Breedlove 21465, DS, ENCB; Heath & Long 934, XAL; Matuda 38280, MEXU). Oax (Mickel 4318, MEXU, NY, 5580, NY, US; Rzedowski 33582, MEXU; Torres C. 9531, 11308, MEXU). Ver (Calzada 10961, XAL; Sousa 3604, MEXU).A
Elevación
900 – 2500 mA
Tipo de vegetación
Selva alta, Bosque de neblina/mesófiloA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
Sujeta a protección especial (Pr)C
Discusión taxonómica
(In relation to the synonym) Alsophila salvinii is distinct in its dark frond axes and the presence of reduced, skeletonized pinnae (aphlebiae). As old trunks fall, buds develop on the trunk, take root, and develop into independent trees. This species is most closely related to species in Madagascar and Borneo (Conant, 1983).A