Die Dornulme (Hemiptelea davidii) ist die einzige Art der monotypischen Pflanzengattung Hemiptelea innerhalb der Familie der Ulmengewächse (Ulmaceae). Sie stammt aus China sowie Korea und wird dort häufig für Heckenpflanzungen oder als Ziergehölz verwendet. Der deutsche Trivialname Dornulme weist auf die zu Dornen umgebildeten Kurztriebe hin.
No narrative description available for this taxon yet.
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 Hemiptelea davidii has left across the world's sequence archives.
At a glance
DNA specimens9
Marker genes5
eDNA detections8
Countries2
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.
★COI-5P★matK★rbcL★ITS★ITS2
animal barcodeplant barcodefungal barcode
06Genome at a glanceCCDB
The complete instruction manualHemiptelea davidii 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.
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.
Chromosome-count records — grouped by value · 2n = full set, n = gamete · click a value for sources & references
2n 561×CCDB · eflora
CCDB · eflora
2n 841×CCDB · ipcn-api-dl
CCDB · ipcn-api-dl — Oginuma, K., P. H. Raven & H. Tobe. 1990. Karyomorphology and relationships of Celtidaceae and Ulmaceae (Urticales). Bot. Mag. (Tokyo) 103: 113–131.
Ploidy records — measured levels and diploid/polyploid inferences · click for sources
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Coordinate accuracy75% within 1 km
≤100 m 9≤1 km 3>10 km 4
16 georeferenced · 290 without coordinates
Open the mapobservation + sensor306
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 accuracy60% within 1 km
≤100 m 3≤1 km 18≤10 km 13>10 km 1
35 georeferenced · 325 without coordinates
Open the institutions mapphysical evidence360
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
Coordinate accuracy
no georeferenced coordinates · 2 records without
Open the mapnot free-living2
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 institutions32 of 56 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Beijing, CN
71
Nanjing, CN
59
Yangling, CN
21
NSMKlocation not on record
21
National Institute of Biological Resourceslocation not on record
20
KR
15
Herbarium of the Department of Botany, University of Tokyolocation not on record
13
Hangzhou, CN
11
Kyoto Universitylocation not on record
9
ifplocation not on record
8
Kunming, CN
7
Cambridge, US
6
Guangzhou, CN
6
Chinese Academy of Forestrylocation not on record
6
Guilin, CN
5
Institute for Agricultural Bacteriology and Fermentation Biologylocation not on record
4
Shanghai, CN
4
Beijing Normal Universitylocation not on record
4
Anhui Normal Universitylocation not on record
4
Dekalb, US
3
Zhengzhou, CN
3
Macomb, US
3
Beijing, CN
3
Guangxi Institute of Traditional Medical and Pharmaceutical Scienceslocation not on record
3
Xining, CN
3
Guangzhou, CN
2
Central China Normal Universitylocation not on record
2
Philadelphia, US
2
Shanxi Institute of Biologylocation not on record
2
Lanzhou, CN
2
WNNUlocation not on record
2
“Manash Kozybayev North Kazakhstan University" NPLClocation not on record
2
Tsukuba, JP
2
Shanghai, CN
2
Bando, JP
2
Wuhan, CN
2
Institute of Applied Ecology, Academia Sinicalocation not on record
1
DMZ botanic gardenlocation not on record
1
Chengdu, CN
1
Minia, EG
1
Karlsruhe, DE
1
Canadian Department of Agriculturelocation not on record
1
Mlocation not on record
1
Xian, CN
1
College Park, US
1
Bronx, US
1
Tampa, US
1
Chengdu, CN
1
Zhejiang Museum of Natural Historylocation not on record
1
Peking Universitylocation not on record
1
SDFlocation not on record
1
Siouxland Heritage Museumlocation not on record
1
Nanjing, CN
1
Jiangxi College of Educationlocation not on record
1
Zhejiang Universitylocation not on record
1
Bloomington, US
1
56 institutions · 354 of 360 vouchered records shown · 6 without an institution code
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
09Environmental DNA8 detections
Where the DNA of Hemiptelea davidii 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 found8
Studies independent surveys1
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 8 detections have coordinates
Open the map0 countries0
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.
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 Foundation8 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility669 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI8 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics9 specimens↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
PloiDBPloidy Databasegenome & karyotype
WikidataWikimedia Foundationstructured facts↗