List of pteridophytes of Sri Lanka

Sri Lanka is a tropical island situated close to the southern tip of India. The invertebrate fauna is as large as it is common to other regions of the world. There are about 2 million species of arthropods found in the world, and still it is counting. So many new species are discover up to this time also. So it is very complicated and difficult to summarize the exact number of species found within a certain region.

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This a list of the pteridophytes found from Sri Lanka.

Pteridophytes

Pteridophytes are vascular plants which reproduce by spores. These free sporing vascular plants show a remarkable life cycle with independent gametophyte and sporophyte generations. Pteridophytes are composed of ferns and lycophytes. Ferns consist of stems, leaves and roots. The stem is usually referred to as rhizome, which is sometimes underground in nature. Most species show stolons and few are with semi-woody trunks. Leaves are referred to as a frond. New leaves typically expand by the unrolling of a tight spiral, the phenomenon known as circinate vernation.[1] There are about 10,560 known species of ferns in the world.[2]

Lycopods are belong to the division Lycopodiophyta, and some are homosporous while others are heterosporous. They differ from ferns due to presence of microphylls, which are the leaves that have only a single vascular trace. There are two extant classes of lycopods, which contains a total of 12 genera and 1290 known species.

The earliest notes on pteridophyte diversity of Sri Lanka dated back to 1887 with Baker's Handbook to the Fern Allies and then in 1892 with Beddome's Handbook to the Ferns of British India, Ceylon, and the Malay Peninsula. In 1947, Copeland adopted a taxonomical system to describe modern taxa of pteridophytes of Sri Lanka. Based on these publications, Prof. R.N. de Fonseka and Mr. M.A.B Jansen prepared the checklist of the pteidophytes of Sri Lanka in 1978.[3] Since then, many experiments and research were carried out about particular families which are important to economy.[4][5][6][7][8]

The following article is based on the checklist by Fonseka and Jansen in 1978.[9]

Division Pteridophyta
Family Equisetaceae - Horsetails
Family Marattiaceae
Family Ophioglossaceae - Adder's-tongue ferns
  • Botrychium daucifolium
  • Botrychium lanuginosum
  • Helminthostachys zeylanica
  • Ophioglossum gramineum
  • Ophioglossum pedunculosum
  • Ophioglossum pendulum
  • Ophioglossum petiolatum
  • Ophioglossum reticulatum
Family Cyatheaceae - Scaly tree ferns
Family Gleicheniaceae - Forked ferns
Family Hymenophyllaceae - Bristle ferns
  • Hymenophyllum denticulatum
  • Hymenophyllum gardneri
  • Hymenophyllum javanicum
  • Hymenophyllum macriglossum
  • Hymenophyllum polyanthos
  • Trichomanes bilabiatum
  • Trichomanes bimarginatum
  • Trichomanes exiguum
  • Trichomanes intramarginale
  • Trichomanes kurzii
  • Trichomanes motleyi
  • Trichomanes nitidulum
  • Trichomanes obscurum
  • Trichomanes pallidum
  • Trichomanes plicatum
  • Trichomanes proliferum
  • Trichomanes saxifragoides
  • Trichomanes wallii
Family Osmundaceae - Flowering ferns
Family Athyriaceae
  • Anisocampium cumingianum
  • Athyrium anisopterum
  • Athyrium hohenackeranum
  • Athyrium macrocarpon
  • Athyrium nigripes
  • Athyrium praetermissum - var. erythrorachis, tripinnatum
  • Athyrium solenopteris - var. pusillum
  • Deparia boryana
  • Diplazium beddomei
  • Diplazium cognatum
  • Diplazium decurrens
  • Diplazium dilatatum
  • Diplazium esculentum
  • Diplazium lasiopteris
  • Diplazium muricatum
  • Diplazium paradoxum
  • Diplazium polyrhizon
  • Diplazium procumbens
  • Diplazium subsinuatum
  • Diplazium sylvaticum
  • Diplazium travancoricum
  • Diplazium zeylanicum
Family Aspleniaceae - Spleenworts
  • Asplenium aethiopicum
  • Asplenium affines
  • Asplenium cheilosorum
  • Asplenium decorum
  • Asplenium decrescens
  • Asplenium disjunctum
  • Asplenium ensiforme
  • Asplenium erectum
  • Asplenium falcatum
  • Asplenium formosum
  • Asplenium gardneri
  • Asplenium indicum
  • Asplenium inaequilaterale
  • Asplenium longipes
  • Asplenium nidus
  • Asplenium nitidum
  • Asplenium normale
  • Asplenium obscurum
  • Asplenium pellucidum
  • Asplenium serricula
  • Asplenium tenuifolium
  • Asplenium tenerum
  • Asplenium unilaterale
  • Asplenium varians
  • Asplenium zenkeranum
Family Blechnaceae
Family Cystopteridaceae
Family Davalliaceae
Family Dennstaedtiaceae
Family Diplaziopsidaceae
  • Diplaziopsis javanica
Family Dryopteridaceae - Wood ferns
  • Arachniodes amabilis
  • Arachniodes aristata
  • Arachniodes tripinnata
  • Bolbitis bradfordi
  • Bolbitis mollis
  • Bolbitis subcrenata
  • Bolbitis virens
  • Ctenitis ferruginea var. obtusiloba
  • Ctenitis rhodolepis
  • Dryopteris approximata
  • Dryopteris ambigua
  • Dryopteris deparioides subsp. concinna
  • Dryopteris hirtipes
  • Dryopteris gracillima var. prolongata, triangularis
  • Dryopteris obtusissima
  • Dryopteris pulvinulifera
  • Dryopteris sparsa
  • Dryopteris wallichiana
  • Elaphoglossum angulatum
  • Elaphoglossum ceylanicum
  • Elaphoglossum commutatum
  • Elaphoglossum spatulatum
  • Egenolfia appendiculata
  • Lastreopsis rufescens
  • Lastreopsis tenera
  • Peranema aspidioides
  • Polystichum anomalum
  • Polystichum auriculatum
  • Polystichum biaristatum
  • Polystichum setiferum var. nigropaleaceum
  • Polystichum tacticopterum
  • Polystichum walkerae var. bipinnatum
Family Hypodematiaceae
  • Hypodematium crenatum
Family Lindsaeaceae
  • Lindsaea caudata
  • Lindsaea cultrata
  • Lindsaea decomposita
  • Lindsaea ensifolia
  • Lindsaea heterophylla
  • Lindsaea macraeana
  • Lindsaea lancea
  • Lindsaea orbiculata
  • Lindsaea tenera
  • Lindsaea walkerae - syn. Isoloma walkerae
  • Sphenomeris chusana
Family Nephrolepidaceae - Swordferns
Family Oleandraceae
  • Oleandra musifolia
Family Polypodiaceae - Polypod ferns
  • Belvisia mucronata
  • Belvisia revoluta
  • Bosmania membranacea (syn. Microsorum membranaceum)
  • Calymmodon cucullatus
  • Ctenopteris glandulosa
  • Ctenopteris mooltonii
  • Ctenopteris repandula
  • Ctenopteris subfalcata
  • Ctenopteris thwaitesii
  • Drymoglossum heterophyllum
  • Drynaria quercifolia
  • Drynaria sparsisora
  • Grammitis attenuata
  • Grammitis medialis
  • Grammitis reinwardtii
  • Grammitis wallii
  • Grammitis zeylanica
  • Leptochilus decurrens
  • Leptochilus matallicus
  • Leptochilus thwaitesianus
  • Leptochilus wallii
  • Loxogramme involuta
  • Loxogramme parallela
  • Microsorum dilatatum
  • Microsorum nigrescens
  • Microsorum punctatum
  • Microsorum pteropus
  • Microsorum scolopendria
  • Pleopeltis amarurolepida
  • Pleopeltis macrocarpa
  • Pleopeltis nuda
  • Prosaptia alata
  • Prosaptia contigua
  • Prosaptia khasyana
  • Prosaptia obliquata
  • Pyrrosia ceylanica
  • Pyrrosia gardneri
  • Pyrrosia lanceolata
  • Pyrrosia mollis
  • Pyrrosia pannosa
  • Scleroglossum sulcatum
  • Selliguea montanus
  • Xiphopteris cornigera
Family Pteridaceae
Family Tectariaceae
  • Arthropteris obliterata
  • Pteridrys syrmatica
  • Pteridrys zeylanica
  • Tectaria coadunata
  • Tectaria decurrens
  • Tectaria devexa
  • Tectaria paradoxa
  • Tectaria polymorpha
  • Tectaria subtriphylla
  • Tectaria thwaitesii
  • Tectaria trimenii
  • Tectaria zeilanica
Family Thelypteridaceae
  • Ampelopteris prolifera
  • Cyclosorus arbuscula
  • Cyclosorus dentatus
  • Cyclosorus extensus
  • Cyclosorus gongyiodes var. glabrus, hirsutus
  • Cyclosorus interruptus
  • Cyclosorus jaculosus
  • Cyclosorus latipinna
  • Cyclosorus megaphyllus
  • Cyclosorus papilio
  • Cyclosorus parasiticus
  • Cyclosorus penangianus
  • Cyclosorus repandulus
  • Cyclosorus subpubescens
  • Cyclosorus thwaitesii
  • Cyclosorus triphyllus
  • Cyclosorus truncatus
  • Cyclosorus unitus
  • Cyclosorus urophyllus
  • Stegnogramma mollissima - syn. Leptogramma mollissima
  • Stegnogramma aspidioides
  • Thelypteris beddomei
  • Thelypteris brunnea
  • Thelypteris ciliata
  • Thelypteris flaccida
  • Thelypteris uliginosa
  • Thelypteris xylodes
Family Marsileaceae Pepperworts
Family Salviniaceae - Salvinias
Family Lygodiaceae - Climbing ferns
Family Schizaeaceae
Family Psilotaceae - Whisk ferns

Division Lycopodiophyta
Family Selaginellaceae - Spike mosses
  • Selaginella brachystachya
  • Selaginella calostachya
  • Selaginella ciliaris
  • Selaginella cochleata
  • Selaginella crassipes
  • Selaginella intermedia
  • Selaginella involvens
  • Selaginella ornithopodioides
  • Selaginella praetermissa
  • Selaginella tenera
  • Selaginella wightii
Family Isoetaceae - Quillworts
  • Isoetes coromandeliana
Family Lycopodiaceae - Clubmosses

References
  1. "Fern Fronds". Basic Biology. Retrieved 6 December 2014.
  2. Christenhusz, M. J. M.; Byng, J. W. (2016). "The number of known plants species in the world and its annual increase". Phytotaxa. Magnolia Press. 261 (3): 201–217. doi:10.11646/phytotaxa.261.3.1.
  3. "A check list of the pteridophytes of Sri Lanka". National Science Foundation of Sri Lanka. Retrieved 14 November 2017.
  4. "Taxonomy and Conservation Status of Pteridophyte Flora of Sri Lanka" (PDF). Ministry of Environment, Sri Lanka. Retrieved 14 November 2017.
  5. "Research and development and innovations in floriculture: lessons from the market giants for developing countries like Sri Lanka". Research Gate. Retrieved 14 November 2017.
  6. "Conservation Priorities for Tree Ferns (Cyatheaceae) in Sri Lanka" (PDF). tai2.ntu.edu.tw. Retrieved 14 November 2017.
  7. "Angiopteris evecta (Forst.) Hoffm: a potential source for antibacterial activity" (PDF). University of Colombo. Retrieved 14 November 2017.
  8. "Cyathea srilankensis Ranil (Cyatheaceae): A New Tree Fern Species From Sri Lanka". bioone.org. Retrieved 14 November 2017.
  9. "Tentative keys to the families & genera of pteridophytes of Sri Lanka". libsys.wyb. Retrieved 14 November 2017.

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