Ramalina siliquosa, also known as sea ivory, is a tufted and branched lichen which is widely found on siliceous rocks and stone walls on coastlands round the British Isles, occasionally slightly inland. It grows well above the high-tide mark but is still very tolerant of salt spray. The branches are flattened and grey, and bear disc-like spore-producing bodies. It forms part of the diet of sheep in Shetland and on the coast of North Wales. It is found in Iceland where it has a conservation status of a vulnerable species.Icelandic Institute of Natural History (1996). Válisti 1: Plöntur (in Icelandic). Reykjavík: Náttúrufræðistofnun Íslands.
No narrative description available for this taxon yet.
Compounds documented for Ramalina siliquosa across natural-product and food-composition databases — not just the ~150 nutrients on a classic label ("nutritional dark matter").
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 Ramalina siliquosa has left across the world's sequence archives.
At a glance
DNA specimens6
Marker genes2
GenBank sequences10
eDNA detections5
Countries3
The DNA barcodea real sequence read deposited for this species
Ramalina siliquosa isolate S31 internal transcribed spacer 1, partial sequence; 5.8S ribosomal RNA gene and internal transcribed spacer 2, complete sequence; and large subunit ribosomal RNA gene, partial sequence
Marker genes sequenced
★ 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.
★ITS10★ITS1
fungal barcode
06Genome at a glanceGoaT · NCBI
The complete instruction manualRamalina siliquosa 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
Genome size≈38 980 098 bp assembly estimate
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).
BACTERIUM Carsonella ruddii0.00016 Gb
THIS GENOME Ramalina siliquosa0.04 Gb
FUNGUS0.04 Gb
INSECT0.25 Gb
HUMAN3.2 Gb
WHEAT17 Gb
FERN Tmesipteris160.45 Gb
Sequencing statusassembly quality — how far to trust these numbers
Assembly level tells you how finished the sequence is — from fragmented contigs, through scaffolds, up to a full chromosome-level assembly. BUSCO % estimates completeness: the share of genes expected to be present that were actually found. These describe the data quality, not the organism.
Assembly levelChromosome
Completeness95.7% BUSCO
08Occurrence & distribution
Record type7 145 records
Wild obs. + sensor5 233
Museum / vouchered1 813
Other99
Range
Area of Occupancy AOO14 020 km²
Depth
0–200 m sunlit6
200–1000 m twilight0
1–4 km midnight0
>4 km abyssal0
median 0 m · max 0 m · 6 records with depth
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Coordinate accuracy65% within 1 km
≤100 m 2 151≤1 km 1 182≤10 km 1 780>10 km 8
5 121 georeferenced · 112 without coordinates
Open the mapobservation + sensor5 233
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.
Coordinate accuracy48% within 1 km
≤100 m 171≤1 km 256≤10 km 330>10 km 137
894 georeferenced · 919 without coordinates
Open the institutions mapphysical evidence1 813
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
10Collections & institutions
Holding institutions36 of 62 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Olocation not on record
235
Durham, US
181
LDlocation not on record
152
Bergen, NO
133
Uppsala, SE
119
Trondheim, NO
74
TROMlocation not on record
35
DOI/NPS, Colonial National Historical Parklocation not on record
26
Madison, US
26
MAlocation not on record
22
Chicago, US
21
ASUlocation not on record
20
Porvoo, FI
15
Philadelphia, US
14
SLU Artdatabankenlocation not on record
13
Senckenberg Gesellschaft für Naturforschung: Senckenberg Forschungsinstitut und Naturmuseumlocation not on record
13
US
11
University of Gdansklocation not on record
11
TSBlocation not on record
10
DASSHlocation not on record
10
PNHSlocation not on record
9
Berlin, DE
8
Oskarshamn, SE
8
Helsinki, FI
7
South Kensington, GB
7
MeiseBGlocation not on record
6
San Sebastián, ES
6
Göteborg, SE
5
Stockholm, SE
5
4
St. Paul, US
4
University of Stellenboschlocation not on record
4
Bando, JP
4
University of Hamburglocation not on record
3
Madrid, ES
3
Bronx, US
3
Kew, GB
2
Boise, US
2
McWane Science Centerlocation not on record
2
Catholic University of Pekinglocation not on record
2
Davis, US
2
Museo Achille Folettolocation not on record
2
Wuzhou, CN
2
nbflocation not on record
2
Clocation not on record
2
Edinburgh, GB
2
Auckland, NZ
1
Santa Barbara, US
1
New Brunswick, US
1
Bourges, FR
1
Norwegian Institute of Bioeconomy Researchlocation not on record
1
CLUlocation not on record
1
University of Oslo, Natural History Museumlocation not on record
1
CJBGlocation not on record
1
UAclocation not on record
1
US
1
BDBClocation not on record
1
Pretoria, ZA
1
Barcelona, ES
1
Paris, FR
1
Nagatoro-machi, Chichibu-gun, JP
1
Tilburg, NL
1
62 institutions · 1 263 of 1 813 vouchered records shown · 156 without an institution code
09Environmental DNA5 detections
Where the DNA of Ramalina siliquosa 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
Detections DNA found5
Studies independent surveys1
Countries1
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 5 detections have coordinates
Open the map1 country0
How strong is each trace?
DNA read depthRead counts were not reported for this species — the map shows presence only, not how strong each trace was.
Modelled climatemodelled
−15°Ctemperature across detection sites+40°C
Temperature median13.2 °C 13.2–13.2
Seasonal swing summer↔winter11.7 °C
Max temp (day)14.5 °C
Min temp (night)12.1 °C
Precipitation100 mm/mo
Air humidity64.1 %
Vapour deficit549 Pa
Cloud cover52.4 %
CHELSA 1981–2010, ~9 km grid, at location & month of 1 detection point · median with p10–p90 · reflects where sampling happened, not only the true niche
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.
WikipediaWikimedia Foundation3 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility6 660 records↗
OBISOcean Biodiversity Information System485 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI5 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics6 specimens↗
NCBIUS National Library of Medicinesequences↗
LOTUSNatural Products (Wikidata)compounds↗
NPASSNat. Product Activity & Species Sourcecompounds↗
Open Tree of LifeOpenTreephylogeny backbone↗
GoaTGenomes on a Tree · Sangergenome & karyotype↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗