Cheiropleuria tricuspe

Description

Rhizome long creeping,5-6 mm in diam.,densely covered with scales;scales reddish brown,base ovate-lanceolate,5-6 mm,margin minutely serrate,apex subulate and long caudate.Fronds remote.Stipe straw-colored or castaneous,20-35 cm,glabrous,stipes of fertile fronds longer than those of sterile fronds.Laminae dimorphic.Sterile lamina deeply 3-lobed or pinnatilobate,lobes 20-35 × 2.5-7 cm,central lobe larger than lateral lobes,entire at margin,acuminate at apex;veins reticulate with simple or branched included veinlets,hardly visible;lamina leathery,pale green,glabrous on both surfaces.Fertile lamina with much narrower lobes,linear,30-40 × 1-1.5 cm.Sori with simple paraphyses.