Helminthostachys

Genus of ferns

Helminthostachys

Helminthostachys zeylanica
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Division:	Polypodiophyta
Class:	Polypodiopsida
Order:	Ophioglossales
Family:	Ophioglossaceae
Subfamily:	Helminthostachyoideae C.Presl
Genus:	Helminthostachys Kaulf. 1824
Type species
Helminthostachys zeylanica (L. 1753) Hook. 1824
Species
†H. halcabadica Fokina 1963 H. zeylanica (L. 1753) Hook. 1824^[1]
Synonyms
Botryopteris C. Presl 1825 non non Renault 1875 Ophiala Desv. 1827 ^[2]

Helminthostachys is a fern genus in the Ophioglossaceae (adder's tongue) family.^[3] It is widespread throughout southeast Asia and Australia.

References

^ subtaxa Tropicos.org. Missouri Botanical Garden. 15 Jan 2012
^ synonyms Tropicos.org. Missouri Botanical Garden. 15 Jan 2012
^ details Tropicos.org. Missouri Botanical Garden. 15 Jan 2012

Classification of Archaeplastida or Plantae s.l.

Domain

Archaea

Bacteria

Eukaryota

(major groups

Excavata

Diaphoretickes

Hacrobia

Cryptista

Rhizaria

Alveolata

Stramenopiles

Plants

Amorphea

Amoebozoa

Opisthokonta

Animals

Fungi

Mesomycetozoea)

Archaeplastida

Picozoa	Picomonas
Rhodelphidia	Rhodelphis
Rhodophyta (red algae)	Cyanidiophyceae Porphyridiophyceae Stylonematophyceae Compsopogonophyceae Rhodellophyceae Bangiophyceae Florideophyceae
Glaucophyta	Glaucocystophyceae
incertae sedis	Algospongia

Viridiplantae
or Plantae s.s.
(green algae &
land plants)

Prasinodermophyta	Prasinodermophyceae Palmophyllophyceae

Chlorophyta

Prasinophytina	Mamiellophyceae Pyramimonadophyceae
Chlorophytina	Nephroselmidophyceae Picocystophyceae Chloropicophyceae Pedinophyceae Chlorodendrophyceae UTC clade Ulvophyceae Trebouxiophyceae Chlorophyceae

Streptophyta

Phragmoplastophyta

Anydrophyta

Zygnematophyceae

Embryophyta (land plants)	(see below↓)

Embryophytes or Plantae sensu strictissimo

Bryophytes

Marchantiophyta (liverworts)	Haplomitriopsida Marchantiopsida Jungermanniopsida
Anthocerotophyta (hornworts)	Leiosporocerotopsida Anthocerotopsida
Bryophyta (mosses)	Takakiopsida Sphagnopsida Andreaeobryopsida Andreaeopsida Oedipodiopsida Tetraphidopsida Polytrichopsida Bryopsida

Polysporangiophytes

†Protracheophytes*

†Horneophytopsida
†Aglaophyton

Tracheophytes
(vascular plants)

†Paratracheophytes*	†Cooksoniopsida †Rhyniopsida †Renaliales

Eutracheophytes

Lycophytes	†Barinophytopsida †Zosterophyllopsida Lycopodiopsida (clubmosses, spikemosses & quillworts)

Euphyllophytes

†Eophyllophytopsida
†Trimerophytopsida

Moniliformopses	†Ibykales †Cladoxylopsida Polypodiopsida (ferns and horsetails)

Lignophytes

†Progymnosperms*	†Noeggerathiopsida †Aneurophytopsida †Archaeopteridopsida †Protopityales

Spermatophytes
(seed plants)

†Pteridosperms* (seed ferns) and other extinct seed plant groups	†Bennettitales †Calamopityales †Callistophytales †Caytoniales †Cordaitales †Corystospermales †Czekanowskiales †Gigantopteridales †Glossopteridales †Lyginopteridopsida †Medullosales †Peltaspermopsida †Pentoxylopsida †Petriellales
Acrogymnospermae (living gymnosperms)	Cycadopsida (cycads) Ginkgoales (Ginkgo) Pinopsida (conifers) Gnetopsida
Angiospermae (flowering plants)	Basal angiosperms Core angiosperms Magnoliids Monocots Eudicots

Fern classification

Supergroup Plant:
Bryophyta
Marchantiophyta
Polypodiophyta
Acrogymnospermae
Angiospermae

Basal clade

†Ibykales
- †Ibykaceae

†Cladoxylopsida

†Cladoxylales
- †Cladoxylaceae
- †Voelkeliaceae
†Hyeniales
- †Hyeniaceae
†Iridopteridales
- †Iridopteridaceae
†Pseudosporochnales
- †Pseudosporochnaceae
†Steloxylales
- †Steloxylaceae

Polypodiopsida

†Stauropterididae

†Stauropteridales
- †Stauropteridaceae

†Zygopterididae

†Rhacophytales
- †Rhacophytaceae
†Zygopteridales
- †Zygopteridaceae

Equisetidae

†Pseudoborniales †Pseudoborniaceae †Sphenophyllales †Aspidostachyaceae †Boegendorfiaceae †Boegendorfiaceae †Eviostachyaceae †Sphenophyllaceae
Equisetales	†Asterocalamitaceae †Autophyllitaceae †Honseleriaceae †Archaeocalamitaceae †Paracalamitaceae †Calamitaceae †Apocalamitaceae †Konnostachyaceae †Manchurostachyaceae †Notocalamitaceae †Schizoneuraceae †Sorocaulinaceae †Echinostachyaceae †Gondwanostachyaceae †Tchernoviaceae Equisetaceae

Ophioglossidae

Psilotales	Psilotaceae
Ophioglossales	Ophioglossaceae

Marattiidae

Marattiales	†Knorripteridaceae †Pecopteridaceae †Ptychocarpaceae †Weichseliaceae †Asterothecaceae †Danaeopsidaceae Marattiaceae

Polypodiidae

†Anachoropteridales
- †Anachoropteridaceae
- †Psalixochlaenaceae
- †Sermayaceae
†Botryopteridiales
- †Botryopteridiaceae
†Senftenbergiales
- †Senftenbergiaceae
†Urnatopteridales
- †Crossothecaceae
- †Discopteridaceae
- †Urnatopteridaceae

Osmundales

†Guaireaceae
Osmundaceae

Hymenophyllales

Hymenophyllaceae

Gleicheniales

Schizaeales

†Acrostichopteridaceae
†Cynepteridaceae
†Klukiaceae
†Stachypteridaceae
†Tempskyaceae
Anemiaceae
Lygodiaceae
Schizaeaceae

Salviniales

†Heroleandraceae
Marsileaceae
†Hydropteridiaceae
Salviniaceae

Cyatheales

Thyrsopteridineae	Thyrsopteridaceae Loxsomataceae Plagiogyriaceae Culcitaceae
Cyatheineae	†Tanydoraceae Metaxyaceae Cibotiaceae Dicksoniaceae Cyatheaceae

Polypodiales

Saccolomatineae	Saccolomataceae
Lindsaeineae	Cystodiaceae Lonchitidaceae Lindsaeaceae
Pteridineae	Pteridaceae
Dennstaedtiineae	Dennstaedtiaceae
Aspleniineae	Cystopteridaceae Rhachidosoridaceae Diplaziopsidaceae Hemidictyaceae Desmophlebiaceae Aspleniaceae Thelypteridaceae Woodsiaceae Onocleaceae Blechnaceae Athyriaceae
Polypodiineae	Hypodematiaceae Didymochlaenaceae Dryopteridaceae Lomariopsidaceae Nephrolepidaceae Tectariaceae Oleandraceae Davalliaceae Polypodiaceae

Taxon identifiers
Helminthostachys	Wikidata: Q2664653 Wikispecies: Helminthostachys APNI: 103368 CoL: 637FK EoL: 61079 EPPO: 1HLSG FloraBase: 20878 FNA: 114946 FoAO2: Helminthostachys FoC: 114946 GBIF: 2650122 GRIN: 17260 iNaturalist: 332971 IPNI: 17116640-1 IRMNG: 1033991 ITIS: 500786 NCBI: 41912 Open Tree of Life: 178176 PLANTS: HELMI2 POWO: urn:lsid:ipni.org:names:17116640-1 Tropicos: 40023094 WFO: wfo-4000017297

Taxon identifiers

Helminthostachys