Bolbitis serratifolia (Mertens) Schott
Descripción
Rhizomes long-creeping, not climbing, to 15 mm diam.; rhizome scales dark brown, to 6 X 2 mm, entire; fronds subdistant, mostly 50–100 cm long; stipes 20–70 cm X 3–6 mm, those of sterile fronds less than 1⁄2 the sterile frond length, those of fertile fronds ca. 2⁄3 the fertile frond length, with appressed scales; sterile blades firmly chartaceous, mostly 25–50 X 20–25 cm, pinnate, with an apical pinna similar to lateral pinnae, not flagellate or proliferous; sterile pinnae 10–20 X 2–3 cm, to ca. 12(–30) pairs, bases broadly cuneate, apices acuminate, margins crenate-serrate (sometimes doubly so), the serrations ca. 5 mm apart; veins areolate, the subcostal areoles with 0–1 excurrent, free veinlets; fertile blades once pinnate, with 8–12 pairs of short-stalked pinnae ca. 3 X 0.6–1 cm, pinnae narrowly elliptic, entire, rounded at tips; sporangia covering the abaxial surfaces of fertile blades.A
Ejemplar revisado
Chis (Breedlove 32817, DS, MEXU; Ghiesbreght 409, GH, cited by Hennipman, 1977, but not verified; Münch 19, DS, US).A
Elevación
550 mA
Ecología y Hábitat
Especially stream banks.A
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
Bolbitis serratifolia differs from congeners in Mexico by the pinnate blades with narrowly elliptic, entire pinnae; from B. hemiotis and B. pergamentacea it differs by the lack of recurrent veinlets in the areoles. It usually has more pairs of lateral pinnae than any other species of Bolbitis in Mexico, excepting B. bernoullii, which differs in its hemiepiphytic habit and denticulate rhizome scales.A