Marsilea quadrifolia
speciesAt a glance
Sources14 archives
Databases and archives Marsilea quadrifolia's data was compiled from.
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility6 802 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI8 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics9 specimens↗
NCBIUS National Library of Medicinesequences↗
LOTUSNatural Products (Wikidata)compounds↗
NPASSNat. Product Activity & Species Sourcecompounds↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
Open Tree of LifeOpenTreephylogeny backbone↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
GoaTGenomes on a Tree · Sangergenome & karyotype↗
Paleobiology DatabasePBDB consortiumfossil record↗
WikidataWikimedia Foundationstructured facts↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.
La Marsilée à quatre feuilles ou Fougère d'eau à quatre feuilles est une fougère aquatique de la famille des Marsileaceae et de l'ordre des Salviniales. Cette fougère rare est protégée sur tout le territoire français.
No narrative description available for this taxon yet.
Size & morphology4
Life cycle & reproduction6
Diet & foraging1
Habitat & environment9
Physiology & chemistry8
Other traits1
Compounds documented for Marsilea quadrifolia across natural-product and food-composition databases — not just the ~150 nutrients on a classic label ("nutritional dark matter").
Compound class profile5 classes
Documented compounds15 total
| Compound | Class | Amount | Source |
|---|---|---|---|
| (-)-Caryophyllene | present | NPASS | |
| (3E,4S)-3-decylidene-4-hydroxy-5-methylideneoxolan-2-one | present | NPASS | |
| [(2S,3R,4R)-2-(1,3-benzodioxol-5-yl)-4-[(4-hydroxy-3-methoxyphenyl)methyl]oxolan-3-yl]methyl acetate | present | NPASS | |
| beta-Elemene | present | NPASS | |
| cis-alpha-Ocimene | present | NPASS | |
| Ethylene | present | LOTUS | |
| Isoobutasilactone | present | NPASS | |
| Longifolin | present | NPASS | |
| methyl (2E)-2-[(1S)-1-hydroxy-2-oxopropyl]tetradeca-2,13-dienoate | present | NPASS | |
| methyl (E)-2-[(1S)-1-hydroxy-2-oxopropyl]dodec-2-enoate | present | NPASS |
A DNA barcode is a short, standardised stretch of genes that works like a fingerprint — enough to tell one species from another. Below is the molecular trace Marsilea quadrifolia has left across the world's sequence archives.
At a glance
★ the standard DNA barcode for this group — the short region actually read to tell this species apart. The rest are extra genes sequenced along the way.
The complete instruction manual Marsilea quadrifolia carries — its genome. We read it from three angles — how big it is, how the DNA is packed into chromosomes, and how completely it has been sequenced — and explain how to read each value as you go.
Genome sizehow big the whole instruction manual is
Measured in base pairs (bp) — the individual letters of DNA (human ≈ 3.2 Gb, a bacterium a few million). The chart places this genome on a logarithmic scale — each step to the right is ten times bigger — among reference organisms. Across species a bigger genome loosely tracks with larger cells, slower growth and lower-energy lifestyles (powered flight favours small genomes) — yet it does not imply more genes or a more advanced organism (the long-standing C-value paradox).
Chromosomes & ploidyhow the DNA is packaged
2n is the full chromosome count in a normal body cell; n is a gamete (egg or sperm), which carries half. Ploidy is how many complete chromosome sets each cell holds — 2× (diploid) is typical for animals, while higher levels (polyploidy) are common in plants. Click any value below to see the underlying records and sources.
2n 4010×GoaT · Kew Plant DNA C-values Database · CCDB · mediterranean · CCDB · ipcn-api-dl +3
n 204×CCDB · ipcn-api-dl · CCDB · CromoCat 2015
Record type6 802 records
Origin
Range
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Museum / Voucheredphysical evidence
Backed by a physical specimen — a herbarium sheet, sample or voucher held in a collection. “Vouchered” means supported by material evidence, not just an observation.
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Holding institutions97 of 168 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
| Institution | Specimens |
|---|---|
| Tsukuba, JP | 112 |
| Beijing, CN | 74 |
| Nanjing, CN | 61 |
| BIO-UNIPIlocation not on record | 61 |
| South Kensington, GB | 47 |
| Bern, CH | 45 |
| GZUlocation not on record | 43 |
| Chicago, US | 42 |
| LDlocation not on record | 34 |
| Staatliches Museum fuer Naturkunde Karlsruhe (State Museum of Natural History)location not on record | 31 |
| GJOlocation not on record | 24 |
| New Haven, US | 22 |
| Philadelphia, US | 22 |
| Chapel Hill, US | 22 |
| Moscow State Universitylocation not on record | 19 |
| Zürich, CH | 19 |
| Zürich, CH | 17 |
| Minia, EG | 17 |
| Burlington, US | 16 |
| Chongqing Museumlocation not on record | 15 |
| Madison, US | 15 |
| CJBGlocation not on record | 14 |
| Wuhan, CN | 14 |
| Guilin, CN | 14 |
| Guangzhou, CN | 13 |
| Universität Basel, Herbariumlocation not on record | 12 |
| Paris, FR | 11 |
| Ann Arbor, US | 11 |
| BDBClocation not on record | 11 |
| University of Stellenboschlocation not on record | 11 |
| Wlocation not on record | 10 |
| University of New Hampshirelocation not on record | 10 |
| Yunnan Universitylocation not on record | 10 |
| Dresden, DE | 10 |
| Awka, NG | 9 |
| Porrentruy, CH | 8 |
| Barcelona, ES | 8 |
| Jiangxi Universitylocation not on record | 8 |
| Bronx, US | 7 |
| Bloomington, US | 7 |
| Pondicherry, IN | 7 |
| Herbarium of the Department of Botany, University of Tokyolocation not on record | 7 |
| McWane Science Centerlocation not on record | 6 |
| Oskarshamn, SE | 5 |
| WTUlocation not on record | 5 |
| Guiyang, CN | 5 |
| Bourges, FR | 5 |
| Shanghai, CN | 5 |
| Fribourg, CH | 4 |
| GMBAlocation not on record | 4 |
| Tianjin Natural History Museumlocation not on record | 4 |
| Tampa, US | 4 |
| Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record | 4 |
| Conservatoire botanique national du Bassin parisienlocation not on record | 4 |
| Adam Mickiewicz University in Poznańlocation not on record | 4 |
| Kyoto Universitylocation not on record | 4 |
| Bangkok, TH | 4 |
| Saint Louis, US | 4 |
| BClocation not on record | 4 |
| Morgantown, US | 4 |
| Université Lavallocation not on record | 3 |
| Guiyang, CN | 3 |
| Québec, CA | 3 |
| Institut und Museum fuer Geologie und Palaeontologielocation not on record | 3 |
| St. Paul, US | 3 |
| CASlocation not on record | 3 |
| Wellington, NZ | 3 |
| BRNUlocation not on record | 3 |
| València, ES | 2 |
| Nijmegen, NL | 2 |
| Toronto, CA | 2 |
| ISAlocation not on record | 2 |
| PRClocation not on record | 2 |
| College Park, US | 2 |
| Taipei, TW | 2 |
| Istituto Agrario Castelnuovolocation not on record | 2 |
| UNINE:NEUlocation not on record | 2 |
| Staten Island, US | 2 |
| US | 2 |
| GBS RAN - Glavny Botanichesky Sad Rossijskoj Akademii Nauklocation not on record | 2 |
| Zhengzhou, CN | 2 |
| Shanghai, CN | 2 |
| Miami, US | 2 |
| Wuhan, CN | 2 |
| Archäologie und Museum Baselland - Museum.BLlocation not on record | 2 |
| Fort Worth, US | 2 |
| Pontifícia Universidade Católica do Paranálocation not on record | 2 |
| Canberra, AU | 2 |
| Regensburgische Botanische Gesellschaftlocation not on record | 2 |
| Anhui Normal Universitylocation not on record | 2 |
| Salzburg, AT | 2 |
| Logan, US | 2 |
| Little Rock, US | 2 |
| Columbia, US | 2 |
| Xining, CN | 2 |
| Hazara Universitylocation not on record | 2 |
| Provincia di Livornolocation not on record | 2 |
| Auckland, NZ | 2 |
| MAlocation not on record | 2 |
| Görlitz, DE | 2 |
| Salvador, BR | 2 |
| Hangzhou, CN | 2 |
| Xiangtan City, CN | 1 |
| Peking Universitylocation not on record | 1 |
| Tomioka, JP | 1 |
| Uniwersytet Śląski w Katowicachlocation not on record | 1 |
| Davenport, US | 1 |
| Yangling, CN | 1 |
| Millersville, US | 1 |
| MeiseBGlocation not on record | 1 |
| National Institute of Biological Resourceslocation not on record | 1 |
| Clemson, US | 1 |
| Norfolk, US | 1 |
| Museum Ludovicae Ulricae, Zoology Institute of the University of Uppsalalocation not on record | 1 |
| Philadelphia, US | 1 |
| Beijing, CN | 1 |
| University of Alberta Museumslocation not on record | 1 |
| Phoenix, US | 1 |
| University of Lethbridgelocation not on record | 1 |
| Alicante, ES | 1 |
| Springfield, US | 1 |
| Nishihara, JP | 1 |
| Musée des Confluenceslocation not on record | 1 |
| Xiamen, CN | 1 |
| Mount Pleasant, US | 1 |
| Royal Ontario Museum, Green Plant Herbarium (TRT)location not on record | 1 |
| University of Guelph, OAC Herbariumlocation not on record | 1 |
| US | 1 |
| Knoxville, US | 1 |
| Montréal, CA | 1 |
| Canadian Department of Agriculturelocation not on record | 1 |
| Trondheim, NO | 1 |
| Flagstaff, US | 1 |
| Universidad Nacional de Asunciónlocation not on record | 1 |
| Fayetteville, US | 1 |
| Central China Normal Universitylocation not on record | 1 |
| Fujian Institute of Subtropical Botanylocation not on record | 1 |
| Chengdu, CN | 1 |
| Sion, CH | 1 |
| John May Museum of Natural Historylocation not on record | 1 |
| Vancouver, CA | 1 |
| UFBAlocation not on record | 1 |
| ASUlocation not on record | 1 |
| Appalachian State Universitylocation not on record | 1 |
| Austin, US | 1 |
| Severin-McDaniel Insect Collectionlocation not on record | 1 |
| UFMSlocation not on record | 1 |
| University of Silesia in Katowicelocation not on record | 1 |
| Saint John, CA | 1 |
| Boumlocation not on record | 1 |
| Porvoo, FI | 1 |
| Vitoria, ES | 1 |
| Royal Botanical Gardenslocation not on record | 1 |
| Gujarat Biodiversity Gene Banklocation not on record | 1 |
| University of Wisconsinlocation not on record | 1 |
| Kingston, US | 1 |
| Lake Charles, US | 1 |
| Uppsala, SE | 1 |
| BG-NMNHSlocation not on record | 1 |
| Chiba, JP | 1 |
| Yaoundé, CM | 1 |
| Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record | 1 |
| Keene State Universitylocation not on record | 1 |
| Tuscaloosa, US | 1 |
| Chengdu, CN | 1 |
| Moscow, US | 1 |
| UNESP, Campus São José Rio Prêtolocation not on record | 1 |
| Tennessee Technological Universitylocation not on record | 1 |
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
Where the DNA of Marsilea quadrifolia was picked up in samples of water, soil or air — nobody saw the organism, only its DNA left behind. A trace is a clue that the species was near, not a confirmed sighting.
Signal
Where its DNA was found
How strong is each trace?
Modelled climatemodelled
How to read this: each dot is one detection of this species' DNA in an environmental sample. The confidence meter weighs how many independent studies and places back up the signal — one detection in one study is a hint; many across several studies is solid. Records dated before 2008 (when eDNA methods began) are treated as likely mislabeled and left off the map.