By organism › Green plants › Nyssaceae › Nyssa

Observationauthor interpretationoriginal resultmeasured

Claim · model-written summary

Davidia, Nyssa and Camptotheca share reproductive units with an extremely shortened axis and complex breeding systems.

Taxon: Davidia, Nyssa, and CamptothecaNyssaCamptothecaDavidiae6
Outcome: reproductive unitse6
Qualifier: an extremely shortened axis, complex breeding systemse6

Verbatim

e6
“Davidia, Nyssa, and Camptotheca share reproductive units with an extremely shortened axis, complex breeding systems, decurrent stigmas, and hemitropous ovules”
✓ located verbatim in the source · abstract, characters 1097–1255

Title

Floral morphology and morphogenesis of Davidia and Nyssa (Nyssaceae, Cornales), with special emphasis on their reproductive systems

Jun-Ru Wang; Jing-Zhi Gong; Min He; et al. Botanical Journal of the Linnean Society 2025. doi:10.1093/botlinnean/boaf118

Other claims from this paper (10)

Observationauthor interpretationoriginal resultmeasured

Claim · model-written summary

Davidia, Nyssa and Camptotheca share decurrent stigmas and hemitropous ovules.

Taxon: Davidia, Nyssa, and CamptothecaNyssaCamptothecaDavidiae6
Outcome: decurrent stigmase6
Qualifier: hemitropous ovulese6

Verbatim

e6
“Davidia, Nyssa, and Camptotheca share reproductive units with an extremely shortened axis, complex breeding systems, decurrent stigmas, and hemitropous ovules”
✓ located verbatim in the source · abstract, characters 1097–1255

Title

Floral morphology and morphogenesis of Davidia and Nyssa (Nyssaceae, Cornales), with special emphasis on their reproductive systems

Jun-Ru Wang; Jing-Zhi Gong; Min He; et al. Botanical Journal of the Linnean Society 2025. doi:10.1093/botlinnean/boaf118

Other claims from this paper (10)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Nyssa occurred in swamp forests surrounding the freshwater lake.

Taxon: NyssaNyssae0
Outcome: swamp forestse0

Verbatim

e0
“Both studies indicate the presence of a freshwater body (a moderately large and deep lake) surrounded by wetland vegetation (including swamp forests with Glyptostrobus , Taxodium , Nyssa and Osmunda ) and upland mesophytic forests.”
✓ located verbatim in the source · abstract, characters 540–771

Title

Palynoflora and palaeoenvironment of the early Miocene palaeolake from the Bełchatów mine, central Poland

Elżbieta WOROBIEC; Grzegorz WOROBIEC Geological Quarterly 2022. doi:10.7306/gq.1664

Other claims from this paper (11)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Nyssa has 2n=44 chromosomes.

Taxon: NyssaNyssae1
Outcome: chromosome numbere0
Value: 2n=44e1

Verbatim

e0
“the chromosome number is consistent within a genus, i.e., 2n=42 in Campthotheca, Davidia and Diplopanax”
✓ located verbatim in the source · abstract, characters 357–460

e1
“2n=44 in Nyssa”
✓ located verbatim in the source · abstract, characters 462–476

Title

Karyomorphology and Chromosome Evolution in Nyssaceae (Cornales)

Kazuo Oginuma; Hiroshi Tobe CYTOLOGIA 2021. doi:10.1508/cytologia.86.29

Other claims from this paper (7)

Observation Camptotheca has 2n=42 chromosomes.
Observation Davidia has 2n=42 chromosomes.
Observation Diplopanax has 2n=42 chromosomes.
Observation Mastixia has 2n=26 chromosomes.
Observation 2n=42 is inferred to be plesiomorphic relative to 2n=44 and 2n=26, which are apomorphic.
Observation Camptotheca and Davidia 2n=42 karyotypes comprise six sets of seven chromosomes.
Observation Nyssaceae is inferred to be of hexaploid origin with basic number x=7.

Observationobservedoriginal resultmeasured

Claim · model-written summary

The fossil record extends the known Nyssa distribution to low latitudes of East Asia.

Taxon: NyssaNyssae0
Outcome: known palaeogeographical distributione0
Setting: low latitudes of East Asiae0

Verbatim

e0
“This new fossil record of Nyssa expands the known palaeogeographical distribution of the genus to the low latitudes of East Asia.”
✓ located verbatim in the source · abstract, characters 479–608

Title

First occurrence of Nyssa endocarps and associated fungi in the Oligocene of South China: palaeogeographical and palaeoecological significance

Sheng‐Lan Xu; Tatiana M. Kodrul; Natalia P. Maslova; et al. Papers in Palaeontology 2021. doi:10.1002/spp2.1408

Other claims from this paper (4)

Observationobservedoriginal resultbasis n/a

Claim · model-written summary

Fossil fungal fruiting bodies on Nyssa endocarps are assigned to a newly named genus and species.

Taxon: NyssaNyssae0
Organ / stage: endocarpse0
Interactor: Yongnicta nyssaee0other
Outcome: new fossil genus and speciese0

Verbatim

e0
“Associated fossil fungal fruiting bodies on Nyssa endocarps are assigned to the new fossil genus and species, Yongnicta nyssae Tobias & Maslova.”
✓ located verbatim in the source · abstract, characters 609–753

Title

First occurrence of Nyssa endocarps and associated fungi in the Oligocene of South China: palaeogeographical and palaeoecological significance

Sheng‐Lan Xu; Tatiana M. Kodrul; Natalia P. Maslova; et al. Papers in Palaeontology 2021. doi:10.1002/spp2.1408

Other claims from this paper (4)

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

About 3% of studied Nyssa endocarps were affected by Yongnicta nyssae.

Taxon: NyssaNyssae0
Organ / stage: endocarpse0
Interactor: Yongnicta nyssaee0other
Outcome: endocarps studied were affectede0
Value: 3%e0

Verbatim

e0
“About 3% of the Nyssa endocarps studied were affected by Yongnicta nyssae .”
✓ located verbatim in the source · abstract, characters 894–969

Title

First occurrence of Nyssa endocarps and associated fungi in the Oligocene of South China: palaeogeographical and palaeoecological significance

Sheng‐Lan Xu; Tatiana M. Kodrul; Natalia P. Maslova; et al. Papers in Palaeontology 2021. doi:10.1002/spp2.1408

Other claims from this paper (4)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Nyssa sp. pollen closely resembles the deciduous Nyssa sylvatica of temperate America.

Taxon: Nyssa sp.Nyssae2
Outcome: resembles closelye2
Comparator: Nyssa sylvaticae2
Setting: temperate Americae2

Verbatim

e2
“Nyssa sp. resembles closely the deciduous Nyssa sylvatica of temperate America”
✓ located verbatim in the source · abstract, characters 388–466

Title

First palynological results of accessorial elements from the Langhian Schaßbach clay pit, Lavanttal Basin (Austria) – LM and SEM investigations of Cornales and Ericales

Christa-Charlotte Hofmann; Sophie Lichtenwagner Grana 2019. doi:10.1080/00173134.2019.1641550

Other claims from this paper (4)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Poplar, gum and pine each represented 4% of Quantico forest composition.

Taxon: poplar (Liriodendron), gum (Nyssa), and pine (Pinus)PinusLiriodendronNyssae0
Outcome: forest compositione0
Value: 4%e0
Setting: Quanticoe1

Verbatim

e0
“poplar (Liriodendron), gum (Nyssa), and pine (Pinus) each representing 4% of the forest composition”
✓ located verbatim in the source · abstract, characters 521–620

e1
“At Quantico”
✓ located verbatim in the source · abstract, characters 358–369

Title

Witness Tree Records for the Early Colonial Period (1623-1700) of Eastern Virginia

Marc D. Abrams; Sarah E. Johnson The American Midland Naturalist 2019. doi:10.1674/0003-0031-181.1.115

Other claims from this paper (10)

Observation Quantico records contained 754 witness trees from 22 species.
Observation Oaks comprised 67% of Quantico witness trees.
Observation Hickory comprised 15% of Quantico witness trees.
Observation Cheatham Annex records contained 502 witness trees from 24 species.
Observation Oaks comprised 57% of Cheatham Annex trees.
Observation Hickory comprised 13% of Cheatham Annex trees.
Observation Pine comprised 10% of Cheatham Annex trees.
Observation Poplar and gum each comprised 5% of Cheatham Annex trees.
Observation Late successional fire-sensitive species were scarce at both sites.
Mechanism Native American burning and clearing was suggested to have affected eastern Virginia forests.

Observationobservedoriginal resultbasis n/a

Claim · model-written summary

Nyssa species are known to hyperaccumulate cobalt in the southeast.

Taxon: Nyssa spp.Nyssae0
Outcome: cobalte0
Setting: southeaste0

Verbatim

e0
“Only two examples of heavy-metal hyperaccumulation are known from the southeast: cobalt in Nyssa spp. and manganese in Phytolacca americana”
✓ located verbatim in the source · abstract, characters 1268–1407

Title

Heavy Metal Tolerance and Accumulation in Plants of the Southeastern United States

A. Joseph Pollard Castanea 2016. doi:10.2179/16-084

Other claims from this paper (5)

Nyssa 63 claims

63 claims