italic title Taxobox name Psilotum image Psilotum.jpg image width 250px image caption Closeup of Psilotum nudum regnum Plant ae divisio Pteridophyta classis Psilotopsida ordo Psilotales familia Psilotaceae genus Psilotum subdivision ranks Species subdivision Psilotum nudum Carolus Linnaeus L. Beauvois Psilotum complanatum Olof Swartz Sw. Psilotum whisk fern is a genus of fern like vascular plant s, one of two genera in the family Psilotaceae , order Psilotales , and class Psilotopsida the other being Tmesipteris . The name of the genus is from Greek psilos naked, because it lacks organs, such as leaves, normally found in other ferns. Species and distribution There are two species, Psilotum nudum and Psilotum complanatum , with a hybrid between them known, Psilotum intermedium Warren H. Wagner W. H. Wagner . The distribution of Psilotum is tropical and subtropical, in the New World , Asia , and the Pacific , with a few isolated populations in SW Europe. The highest latitudes known are in South Carolina , C diz province in Spain , ref name Libro Rojo cite web url http www.mma.es portal secciones biodiversidad inventarios inb flora vascular pdf 1066.pdf work Atlas y Libro Rojo de la Flora Vascular Amenazada de Espa a title Psilotum nudum ref and southern Japan for P. nudum . In the U.S., one species is found from Florida to Texas, the other in Hawaii. Relation to ferns Psilotum superficially ... 4 1 , 26 30 ref strongly confirms that Psilotum is a fern. Psilophytes are sister to ophioglossoid ferns. Gametophyte The gametophyte of Psilotum nudum L. Beauv. P. triquetrum Swartz is unusual ... Holloway, J.E. 1939 The gametophyte, embryo and young rhizome of Psilotum triquetrum Schwarz ... on the cytology of Psilotum with special reference to vascular prothalli from Rangitoto Is. Annals ... Category Psilotaceae Category Living fossils Category Flora of India ca Psilotum da Psilotum de Psilotum es Psilotum fr Psilotum lt Psilotas ms Paku pakis whisk nl Psilotum pt Psilotum ... more details
italic title Taxobox name Psilotum image Psilotum.jpg image width 250px image caption Closeup of Psilotum nudum regnum Plant ae divisio Pteridophyta classis Psilotopsida ordo Psilotales familia Psilotaceae genus Psilotum species Psilotum nudum Psilotum nudum is a fern plant. Like the other species in the order Psilotales , it lacks roots. It is found in tropical Africa, Central America, tropical and subtropical North America, South America, ref name fna cite web url http www.efloras.org florataxon.aspx?flora id 1&taxon id 200002872 work Flora of North America title Psilotum nudum ref , tropical Asia, Australia, Hawaii, southern Japan, Lord Howe Island, New Zealand, with a few isolated populations in SW Europe Los Alcornocales , Spain , C diz province . ref name Libro Rojo cite web url http www.mma.es portal secciones biodiversidad inventarios inb flora vascular pdf 1066.pdf work Atlas y Libro Rojo de la Flora Vascular Amenazada de Espa a title Psilotum nudum language Spanish ref ref name Fairley 1989 Citation last1 Fairley first1 Alan last2 Moore first2 Philip title Native plants of the Sydney district edition 1st year 1989 publisher Kangaroo Press isbn 0 86417 261 3 page 27 ref Psilotum .... Its name, Psilotum nudum , means bare naked in Latin, because it lacks most of the organs of modern ..., A. 1971 An Appendageless Psilotum. Introduction to Aerial Shoot Morphology. American Fern Society 61 ... faculty.ucc.edu biology ombrello POW Psilotum.htm title Psilotum author Ombrello, T. publisher Union ... . ref name fna Image Psilotum nudum Sydney Opera House.JPG thumb left 280px Psilotum nudum at the Sydney ... Frond Extracts of Psilotum nudum, Nephrolepis biserrata and Nephrolepis cordifolia. Indian J Pharm Sci. 2010 Nov 72 6 818 22 ref commonscat Psilotum nudum References references Category Psilotaceae Category ... of Australia Category Garden plants of Asia Category Epiphytes fern stub cs Prutovka nah es Psilotum nudum fr Psilotum nudum ko nl Psilotum nudum ja to Limufonua ... more details
italic title Taxobox name Psilotum complanatum image image width image caption status G4 status system TNC regnum Plant ae divisio Pteridophyta classis Psilotopsida ordo Psilotophyta Psilotales familia Psilotaceae genus Psilotum species P. complanatum binomial Psilotum complanatum binomial authority Olof Swartz Sw. Psilotum complanatum Flatfork Fern is a rare herbaceous epiphytic fern ally in the genus Psilotum . There is some evidence that it might be a true fern that has lost some typically fern like characteristics. ref cite journal last Qiu first Yin Long coauthors Jeffrey D. Palmer year 1999 month January title Phylogeny of early land plants insights from genes and genomes journal Trends in Plant Science volume 4 issue 1 pages 26 30 doi 10.1016 S1360 1385 98 01361 2 pmid 10234267 ref Morphologically, the plant is simple, lacking leaves and roots, and having hanging stems with dichotomous branching, which lack developed leaves but have minute scales. The stems and branches have protostele , with a triangular shaped core of xylem . The scales are arranged in two rows along the flat stems and branches. The stems are broadly triangular in cross section and 5 mm wide. The branches are 1.5 to 2 mm wide. P. complanatum grows 10 to 75 cm long and stems branch in pairs a number of times up their length and are covered with brownish colored hair like rhizoid s. Small stalks end with simple sporangia from the axils of minute wiktionary bifid bifid , rounded sporophyll s. Bean shaped, monolete spore s are produced. The spores germinate best in a dark environment when ..., Stutee Gupta, M. C. Porwal, and P. S. Roy date 25 July 2003 title Psilotum complanatum Sw., a rare ... cgi bin NSWfl.pl?page nswfl&lvl sp&name Psilotum complanatum PlantNET FloraOnline Bot generated ... Psilotum Complanatum Category Psilotaceae Category Fern species Category Living fossils Category Flora of India Category Epiphytes nl Psilotum complanatum ... more details
Taxobox name Psilotaceae image Psilotum.jpg image width 250px image caption Closeup of Psilotum nudum regnum Plant ae divisio Pteridophyta classis Psilotopsida ordo Psilotales ordo authority Karl Anton Eugen Prantl Prantl familia Psilotaceae familia authority J.W. Griff. & Henfr. subdivision ranks Genera subdivision Psilotum Tmesipteris Psilotaceae is a family of fern like plants in order biology order Psilotales consisting of two genera, Psilotum and Tmesipteris . The two genera are very different and in the past Tmesipteris has been placed in its own family, Tmesipteridaceae, ref cite book year 1990 editors K. U. Kramer & P. S. Green eds. title The Families and Genera of Vascular Plants volume I author K. U. Kramer chapter Psilotaceae page 22 publisher Springer Verlag location Berlin isbn 3540517944 ref but most classifications continue to treat it in Psilotaceae. The relationships of Psilotaceae have been unclear, in part because the plants lack roots or true leaves, but recent molecular systematic studies suggest a relationship to the fern family Ophioglossaceae . ref name Smith 2006 cite journal doi 10.2307 25065646 last Smith first Alan R. coauthors Kathleen M. Pryer, Eric Schuettpelz, Petra Korall, Harald Schneider, & Paul G. Wolf year 2006 title A classification for extant ferns url http www.pryerlab.net publication fichier749.pdf format PDF journal Taxon volume 55 issue 3 pages 705 731 jstor 25065646 ref The first genus, Psilotum , consists of small shrubby plants of the dry tropics commonly known as Whisk ferns . The other genus, Tmesipteris , is an epiphyte found in Australia , New Zealand , and New Caledonia . There has long been controversy about the relationships of the Psilotaceae, with some claiming that they are fern s Pteridophyta , and others maintaining that they are descendants of the first vascular plants the Psilophytopsida Psilophyta of the Devonian period . Recent evidence from DNA demonstrates a much closer relationship to the ferns, and that they are closely ... more details
italic title Taxobox name Fork Fern image Tmesipteris truncata Turramurra.jpg image caption Turramurra , Australia regnum Plant ae divisio Pteridophyta classis Psilotopsida ordo Psilotophyta Psilotales familia Psilotaceae genus Tmesipteris species T. truncata binomial Tmesipteris truncata binomial authority R.Br. Desv. synonyms small Tmesipteris oblanceolata Copel. small small Psilotum truncatum R.Br. small Tmesipteris truncata is a fern ally endemism endemic to eastern Australia . The habitat of this primitive plant is under waterfalls, or in sandstone gullies or rainforest s. Commonly referred to as a Fork Fern . It is often found growing on the base of the Todea barbara King Fern . Usually seen as an epiphyte or lithophyte , but it may also appear as a terrestrial plant. Found as far south as Mount Dromedary . The stems are 15 to 30 cm long, mostly unbranched. Three or four grooves are at the base. The leaves grow shorter at the base, also shorter at the apex of the stems. Leaves are narrow linear to oblong in shape 15 to 25 mm long, 2 to 5 mm wide. The midvein of the leaf ends in a thin point. Synangia are 3 to 5 mm long. ref cite web title Tmesipteris truncata , PlantNET NSW Flora Online, Retrieved July 22nd, 2011 url http plantnet.rbgsyd.nsw.gov.au cgi bin NSWfl.pl?page nswfl&lvl sp&name Tmesipteris truncata ref The specific epithet truncata refers to the leaf tops, which appear abruptly cut off. ref Les Robinson Field Guide to the Native Plants of Sydney, ISBN 9780731812110 page 303 ref This plant first appeared in scientific literature in 1810 as Psilotum truncatum in the Prodromus Florae Novae Hollandiae , authored by the prolific Scottish botanist, Robert Brown botanist Robert Brown . References reflist Category Psilotaceae Category Fern species Category Flora of New South Wales Category Flora of Queensland Category Epiphytes Category Plants described in 1810 fern stub ... more details
thumb Psilotum has secondarily lost leaves, and bears enations resembling those of early land plants. An interesting case is that of Psilotum , which bears a protostele, and enations devoid of vascular tissue. Consequently, Psilotum was long thought to be a living fossil closely related to early land plants Rhyniophytes . However, genetic analysis has shown Psilotum to be a reduced fern. ref name ... more details
The Serres de l Universit de Bourgogne are greenhouse botanical garden s operated by the University of Burgundy . They are located at 8 rue du Recteur Marcel Bouchard, Dijon , Bourgogne , C te d Or , France . The greenhouses were established in 1966 and consist of a palm house , laboratories, and six greenhouse s designated for hot, temperate, and cold climates, cactuses, experiments, and multiple purposes. They preserve various threatened plants of Bourgogne , and also contain a range of tropical and sub tropical genera such as Psilotum and Lycopodium , tropical aquatics such as Eichornia and Salvinia , carnivorous plants including Sarracenia and Darlingtonia plant Darlingtonia , and epiphyte s including Bromeliaceae and Orchidaceae . Collections also include a herbarium 5,000 specimens of historic interest and teaching models of plants. See also List of botanical gardens in France References http www.u bourgogne.fr serres Serres de l Universit de Bourgogne https www.cbd.int doc world fr fr ex bg en.pdf Convention on Biological Diversity Botanical Gardens in France coord 47.3139 5.0713 type landmark region FR display title Category Gardens in C te d Or Bourgogne, Serres de l Universit de Category Botanical gardens in France Bourgogne, Serres de l Universit de Category Buildings and structures in C te d Or Category Visitor attractions in Dijon C teOr geo stub France garden stub es Invernaderos de la Universidad de Borgo a ... more details
Unreferenced stub auto yes date December 2009 A sporophyll is a leaf that bears sporangia . Both microphylls and megaphylls can be sporophylls. In heterosporous plants, sporophylls whether they are microphylls or megaphylls bear either megasporangia and thus are called megasporophylls , or microsporangia microsporophylls . The overlap of the prefixes and roots makes these terms a particularly confusing subset of botanical nomenclature. Sporophylls vary greatly in appearance and structure, and may or may not look similar to sterile leaves. Plants that produce sporophylls include Lycophyte s, where sporophylls may be aggregated into strobili Selaginella and some Lycopodium and related genera or distributed singly among sterile leaves Huperzia and segregate genera . Sporangia are distinctively borne in the axil or on the adaxial surface of the sporophyll. In heterosporous members, megasporophylls and microsporophylls may be intermixed or separated in a variety of patterns. Fern s, which may produce sporophylls that are similar to sterile fronds or that appear very different from sterile fronds. These may be non photosynthetic and lack typical pinnae e.g. Onoclea Cycads produce strobili, both pollen producing and seed producing, that are composed of sporophylls. Gingko produces microsporophylls aggregated into a pollen strobilus. Ovules are not born on sporophylls. Conifers, like ginkgo and cycads, produce microsporophylls, aggregated into pollen strobili. However, unlike these other groups, ovules are produced on cone scales, which are modified shoots rather than sporophylls. Some plants do not produce sporophylls. Sporangia are produced directly on stems. Psilotum has been interpreted as producing sporangia fused in a synangium on the terminus of a stem. Equisetum always produce strobili, but the structures bearing sporangia sporangiophores have been interpreted as modified stems. The sporangia, despite being recurved are interpreted as terminal. Gnetophytes produce b ... more details
File Nelumno nucifera open flower botanic garden adelaide2.jpg thumb Lotus Flower Lotus , the national flower of India Wildlife of India Expand list date August 2008 The Flora of India is one of the richest of the world due to a wide range of climate, topology and environments in the country. It is thought there are over 15000 species of flowering plants in India,which account for 6 percent of the total plant species in the world. ref Flower Plants of India 2009 . Web page http www.ecoindia.com flora flowers accessed 3 810 ref and probably many more species. Whilst the list comprises indigenous types, others have been introduced to India and may be included. Major plant divisions sub divisions are shown together with Family and examples. The classification and ranking of plants varies due to differing taxonomy systems and Synonym taxonomy synonyms may be shown. div col cols 3 H title Non flowering plants with hopeless seeds Gymnosperms H title Horsetails Equisetophyta Equisetaceae H title Club Moss and Liverworts Lycopodiophyta Lycopodiaceae Selaginellaceae H title Conifers Pinophyta sd cycadophytina Cycadaceae H title Gymnospermous types Pinophyta sd gnetophytina Ephedraceae Gnetaceae Welwitschiaceae H title Other conifers and trees Pinophyta sd pinophytina Araucariaceae Cupressaceae Pinaceae Podocarpaceae Podocarpus wallichianus http www.ias.ac.in currsci oct102002 806.pdf Taxaceae Taxus wallichiana Taxus baccata Taxodiaceae Cryptomeria japonica H title Ferns Polypodiophyta Gleicheniaceae Marattiaceae Ophioglossaceae Polypodiaceae Thelypteridaceae H title Whisk Ferns Psilotophyta Psilotaceae Psilotum nudum Western Ghats, Central India and northeast India Psilotum complanatum Sw. Nicobar Islands ref cite journal last Chuahan first Nidhi coauthors Hitendra Padalia, Stutee Gupta, M. C. Porwal, and P. S. Roy date 25 July 2003 title Psilotum complanatum Sw., a rare epiphytic fern ally of Great Nicobar Island Exploration and habitat monitoring journal Current Science vo ... more details
Italictitle This article was auto generated by User Polbot . taxobox name Lobelia monostachya status CR status system IUCN3.1 status ref ref Bruegmann, M.M. & Caraway, V. 2003. http www.iucnredlist.org search details.php 44069 all Lobelia monostachya . http www.iucnredlist.org 2010 IUCN Red List of Threatened Species. Downloaded on 13 May 2011. ref regnum Plant ae unranked divisio Flowering plant Angiosperms unranked classis Eudicots unranked ordo Asterids ordo Asterales familia Campanulaceae genus Lobelia species L. monostachya binomial Lobelia monostachya binomial authority Joseph Rock Rock Thomas G. Lammers Lammers ref cite web url http www.ars grin.gov cgi bin npgs html taxon.pl?416330 title Taxon Lobelia monostachya Rock Lammers work Germplasm Resources Information Network publisher United States Department of Agriculture date 2000 03 02 accessdate 2011 02 26 ref Lobelia monostachya is a species of flowering plant in the Campanulaceae family that is Endemism endemic to the island of Oahu O okina ahu in Hawaii . It inhabits cliffside Hawaiian tropical rainforests Coastal mesic forests mesic shrublands in the southern Ko olau Range Ko okina olau Mountains at an elevation of convert 44 614 m ft abbr on . It was previously believed to be extinct. In 1994 it was rediscovered and only 8 individuals are currently known to exist. ref name five USFWS. http ecos.fws.gov docs five year review doc1847.pdf Lobelia monostachya Five year Review. January 2008. ref Associated native plants include Artemisia australis , Carex meyenii , Eragrostis spp., and Psilotum nudum . ref cite web url http www.state.hi.us dlnr dofaw cwcs files Flora 20fact 20sheets Lob mon 20plant 20NTBG W.pdf title Lobelia monostachya work Hawaii s Comprehensive Wildlife Conservation Strategy publisher Hawaii Department of Fish and Wildlife accessdate 2011 02 27 ref It is threatened by habitat loss . References reflist External links commonscat inline Lobelia monostachya Lobelia monostachya wikispecies inl ... more details
italic title Taxobox name Nephrolepis image Nephrolepis exaltata indoor0705c.jpg image width 240px image caption Nephrolepis exaltata regnum Plant ae divisio Pteridophyta classis Polypodiopsida ordo Polypodiales unranked familia Eupolypods I familia Nephrolepidaceae genus Nephrolepis genus authority Heinrich Wilhelm Schott Schott , 1834 subdivision ranks Species subdivision See text Nephrolepis is a genus of about 30 species of fern s in the family Nephrolepidaceae or Lomariopsidaceae included in Davalliaceae in some classifications . Nephrolepidaceae is part of the eupolypods I clade of the order Polypodiales , ref name Christenhusz 2011 in the class Polypodiopsida . ref name Smith 2006 Selected species Nephrolepis biserrata Sw. Schott. synonymy syn. Aspidium bisseratum Sw., Aspidium acutum Schkuhr, Nephrolepis acuta Schkuhr C.Presl, Polypodium puctulatum Poir Nephrolepis cordifolia L. C.Presl syn. Polypodium cordifolium L., Nephrolepis tuberosa Bory ex Willd. C.Presl, Aspidium tuberosum Bory ex Willd. Nephrolepis exaltata L. Schott syn. Polypodium exaltatum L. Nephrolepis multiflora Roxb. F.M.Jarret ex C.V.Morton syn. Davallia multiflora Roxb. Nephrolepis obliterata Nephrolepis pectinata Willd. Schott syn. Aspidium pectinatum Willd. Some species of Nephrolepis are grown as ornamental plant s. Nephrolepis exaltata and Nephrolepis obliterata are reported to be good plants for cleaning indoor air. ref name Kobayashi 2007 Some Nephrolepis spp. may prove to be a good source of new antimicrobial chemicals. ref Rani D, Khare PB, Dantu PK In Vitro Antibacterial and Antifungal Properties of Aqueous and Non Aqueous Frond Extracts of Psilotum nudum, Nephrolepis biserrata and Nephrolepis cordifolia. Indian J Pharm Sci. 2010 Nov 72 6 818 22 ref References reflist refs ref name Smith 2006 cite journal author Alan R. Smith, Kathleen M. Pryer, Eric Schuettpelz, Petra Korall, Harald Schneider & Paul G. Wolf year 2006 title A classification for extant ferns journal Taxon volume 55 ... more details
Image Cococrb2.jpg right thumb Although it remains unclear whether or not the coconut crab is endangered species endangered , Caroline Island hosts a substantial population of the arthropod. Species recorded on Caroline Island , one of the Line Islands in the south central Pacific Ocean Flora Trees Image Starr 990611 0869 Pisonia grandis.jpg thumb right Groves of Pisonia grandis cover the central portions of many islets. Calophyllum Coconut Cocos nucifera Cordia subcordata Hibiscus tiliaceus Noni Morinda citrifolia File Coconut 1 .jpg thumb right Although not native, coconut palms were planted on many of Caroline s islets in the 1920s and earlier, but are now largely gone. Pandanus tectorus Pisonia grandis Thespesia populnea Shrubs Image Tournefortia argentia.jpg thumb right Large stretches of Heliotropium foertherianum shrub cover many of Caroline s islets. Heliotropium foertherianum Scaevola taccada Suriana Suriana maritima Ximenia americana Herbs Achyranthes canscens Boerhavia repens Heliotropium anomalum Ipomoea macrantha Ipomoea violacea Laportea ruderalis Lepidium bidentatum Lepturus repens Lygodium microphyllum Phyllanthus amarus Phymatosorus scolopendria Portulaca lutea Psilotum nudum Sida fallax Tacca leontopetaloides Tribulus cistoides Fauna Nesting Seabirds Black Noddy Anous minutus Blue grey Noddy Procelsterna cerulea Kepler Brown Booby Sula leucogaster Brown Noddy Anous stolidus Great Frigatebird Fregata minor Lesser Frigatebird Fregata ariel Masked Booby Sula dactylatra Red footed Booby Sula sula Red tailed Tropicbird Phaethon rubricauda Kepler Image Sterna fuscata.JPG thumb right Caroline Island is a major nesting site for the sooty tern. Sooty Tern Onychoprion fuscata White Tern Gygis alba Other birds Bristle thighed Curlew Numenius tahitiensis Image Bristle thighed Curlew.jpg thumb right The Bristle thighed curlew is among the vulnerable species which occasionally visit Caroline Atoll. Lesser Golden Plover Pluvialis dominica Kepler Long tailed Cucko ... more details
Image Clubmoss 1127100195.jpg thumb right A clubmoss, from the Lycopodiopsida Image Isoetes lacustris nf.jpg thumb Iso tes lacustris , a quillwort, from the Isoetopsida Image Equisetum fluviatile Luc Viatour.jpg thumb Equisetum fluviatile , from the Equisetopsida horsetails Image Psilotum.jpg thumb right Psilotum nudum , from the Psilotopsida whisk ferns Fern allies are a diverse group of seedless vascular plant s that are not true fern s. Like ferns, a fern ally disperses by shedding spore s to initiate an alternation of generations . Classification There were originally three or four groups of plants considered to be fern allies. In various classification schemes, these may be grouped as classes or divisions within the plant kingdom. Fern allies and ferns were sometimes grouped together as division Pteridophyta . ref Citation last Sporne first K.R. year 1966 title The Morphology of Pteridophytes edition 2nd publication place London publisher Hutchinson isbn 978 0 09 104881 5 ref Another traditional classification scheme of living plants is as follows here, the first three classes are the fern allies Kingdom Plant ae Division vascular plant Tracheophyta vascular plants Class Lycopodiophyta Lycopsida , clubmoss es and related plants fern allies Class Equisetophyta Sphenopsida or Equisetopsida, horsetail s and scouring rushes fern allies Class whisk fern Psilopsida , whisk fern s fern allies Class fern Filices or Pteropsida, true ferns Class Spermatopsida or sometimes as several different classes of seed bearing plants More recent evidence shows that the class Filices, as described above, is not monophyletic . The following classification represents a consensus view although different authors may use different names for the various groups ref citation author Pryer, K. M., Schuettpelz, E., Wolf, P. G., Schneider, H., Smith, A. R. & Cranfill, R. date 2004 title Phylogeny and evolution of ferns monilophytes with a focus on the early leptosporangiate divergences journal ... more details
except for that of Psilotum . ref name Holloway1939 Cite journal last1 Holloway first1 J.E. year 1939 title The gametophyte, embryo and young rhizome of Psilotum triquetrum Schwarz journal Annals of Botany ... more details
Below is a list of fern Pteridophyta families , and the genera which are placed in them, using the classification scheme proposed by Smith et al. 2006 , ref name Smith 2006 placed in the linear order of Christenhusz et al. 2011 . ref name Christenhusz 2011b Note that Smith et al. 2006 used the more traditional classes as listed below, while Christenhusz et al. 2011 used the corresponding subclasses shown in square brackets proposed by Chase and Reveal in 2009. ref name Chase 2009 In their proposal, all land plants embryophytes are placed in a single class, Equisetopsida sensu lato Equisetopsida , and the ferns monilophytes are assigned five of the 14 Equisetopsida subclasses. However, Christenhusz et al. merged the Psilotidae into the Ophioglossidae subclass, leaving four fern subclasses, corresponding to the four classes of Smith et al. Class Equisetopsida or subclass Equisetidae horsetails and scouring rushes Order Equisetales Family Equisetaceae Genus Equisetum Class Psilotopsida or subclass Ophioglossidae whisk ferns, adder s tongues and moonworts Order Ophioglossales Family Ophioglossaceae incl. Botrychiaceae Genera Botrychium , Botrypus , Sceptridium , Helminthostachys , Cheiroglossa , Mankyua , Ophioglossum , Ophioderma Order Psilotales Family Psilotaceae incl. Tmesipteridaceae Genera Psilotum , Tmesipteris Class Marattiopsida or subclass Marattiidae marattioid ferns Order Marattiales Family Marattiaceae incl. Angiopteridaceae, Christenseniaceae, Danaeaceae Genera Angiopteris , Christensenia , Danaea , Eupodium , Marattia , Ptisana Class Polypodiopsida or subclass Polypodiidae fern Polypodiidae leptosporangiate ferns, also called Filicopsida or Pteridopsida Order Osmundales royal ferns Family Osmundaceae Genera Leptopteris , Osmunda , Osmundastrum , Todea Order Hymenophyllales filmy ferns and bristle ferns Family Hymenophyllaceae incl. Trichomanaceae Genera Abrodictyum , Callistopteris , Cephalomanes , Crepidomanes , Didymoglossum , Hymenophyllum , Polyphlebi ... more details
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