Hemionitis pinnatifida Baker
Descripción
Rhizomes erect, 2–3 mm diam.; rhizome scales linear, bicolorous, central portion dark brown with margins light brown, becoming concolorous at base of stipes; fronds 7–24 cm, clumped; stipes 1⁄2–2⁄3 the frond length, 1–2 mm diam., castaneous, grooved to flattened adaxially, with narrow scales at bases grading into multicellular, acicular to capitate hairs 2 mm long; blades deeply pinnately 5–7-lobed, 5–8 cm wide, the basal pair usually with a single basiscopic lobe; sterile lobes rounded; fertile lobes acute to acuminate; margins crenulate, not recurved, proliferous from many small buds in small sinuses; veins netted without included veinlets, dark color of 5–7 major veins extending into branches of 5–7 minor veins, minor veins pinnately arranged; adaxial and abaxial surfaces pilose with jointed, multicellular, acicular hairs 1–1.5 mm long; sori along all veins; spores light yellow-orange; 2n=120 (Oax).
A
A
Forma de vida
TerrestreA
Ejemplar revisado
Chis (Breedlove 38432, MEXU, 71513, CAS; Matuda 2128, GH, MEXU, US). Gro (González 344, FCME; Lorea 401, IEB). Jal (Rzedowski & McVaugh 1361, ENCB). Oax (Mickel 5988, 6133a, 6238, 5975, NY).A
Elevación
50 – 1000 mA
Ecología y Hábitat
In soil on moist, rocky slopes in mesic forest, mostly on the Pacific slope.A
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
Hemionitis pinnatifida is distinct from H. palmata by having bicolorous rhizome scales and pinnately arranged lobes and major veins. Hybrids with H. palmata are known from Oaxaca (see also discussion under H. palmata).A