Onocleopsis F.Ballard
Descripción
Rhizomes erect, stout, often stoloniferous from bases; rhizome scales concolorous, brown, lustrous; fronds clumped, dimorphic; stipes light brown to stramineous, with scattered concolorous scales; sterile blades pinnate, reduced at blade bases, apices pinnatifid; rachises similar to stipes; sterile pinnae lanceolate, sessile, bases truncate or subcordate, apices acuminate, margins broadly serrate; blades glabrous adaxially, short-pilose on veins and costae abaxially, membranaceous to chartaceous; fertile blades 2–3-pinnate, with laminar tissue nearly absent, fertile pinnules rolled into 3–4 globular divisions, brown at maturity; veins on sterile pinnae netted and without included veinlets, on fertile pinnae free; sori enclosed by inrolled pinnae, ultimate segments with 2 sori; indusia essentially absent or present as thin, hyaline scale for each sorus; spores bilateral; x=?.A
Forma de vida
TerrestreA
Distribución
México (país) Nativo y no endémicoA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
Onocleopsis is a monotypic genus, occurring from central Mexico to Guatemala at high elevations in or adjacent to mountain streams. It is closely allied to Matteuccia and Onoclea of north temperate regions. The genus is distinct by the large, 1-pinnate sterile fronds with netted veins and 2–3-pinnate fertile fronds.A