Stable identifiers http://herbarium.bgbm.org/object/B200147092
Herbarium # B 20 0147092
Collection # B-Pteridophyta
Stored under taxonname Pyrrosia porosa (C. Presl) Hovenkamp var. porosa (C. Presl) Hovenkamp   tropicos
GBIF
Family Polypodiaceae
Det./rev./conf./assigned P. Hovenkamp (L) 1982-11-29
Ident. history orig.: Niphobolus porosus, G. Mettenius: Polypodium porosum; P. Hovenkamp (L) 1982-11-29: Pyrrosia porosa· var. porosa
Isotypus of Niphobolus porosus C. Presl
Typified by: P. Hovenkamp 1982-11-29
Current Name: Pyrrosia porosa (C. Presl) Hovenkamp
Collector wikidata Index of Botanists (HUH) VIAF Bionomia Wallich,N. 266 (link to CETAF Botany Pilot) 
Date 1821
Location Nepal
Label sine loco
Habitat
Habitus
Annotations Polypodium porosum com. Meissner; Herbarium G. Mettenius