Aria meyeri
| Aria meyeri | |
|---|---|
 | |
| Fruiting Aria meyeri growing in its natural habitat in the Tauberland, Germany | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Rosales |
| Family: | Rosaceae |
| Genus: | Aria |
| Species: | A. meyeri |
| Binomial name | |
| Aria meyeri (S.Hammel & Haynold) Mosyakin, Fedor. & McNeill[2] | |
 | |
| Synonyms[2] | |
| |
Aria meyeri, or Meyer's whitebeam,[4] is an apomictic species[3] of tree in the family Rosaceae endemic to Baden-Württemberg[2] and Bavaria, Germany.[3] It is extremely rare[3][5] and vulnerable to extinction.[1]
Description
[edit]
Vegetative characteristics
[edit]Aria meyeri is an up to 15 m tall[5] occasionally multi-trunked[6] tree or shrub[5] with initially smooth and later fissured greyish brown bark.[6] The trunk circumference at 150 cm height is 90 cm.[6] The petiolate, slightly lobed leaves with a dentate margin are 8–10 cm long,[5] and 5.4–6.6 cm wide.[6] The abaxial leaf surface bears white pubescence.[5]
Generative characteristics
[edit]The 5.5–8.5 cm wide inflorescence bears 30–55[5] white, 1.6–1.7 cm wide flowers.[6] The flower has 20 white, 5–7 mm long stamens with cream-coloured anthers.[6] The faintly green styles are partially fused.[5] The 12–13 mm long,[5] bright red, oval fruit[7] with up to 170 lenticels[5] bears brown, 5.5 mm long, 2.5 mm wide, and 2 mm high seeds.[6]
Cytology
[edit]It is triploid[7][8] with a chromosome count of 2n = 51.[9][7]
Taxonomy
[edit]It was first described as Sorbus meyeri S.Hammel & Haynold by Steffen Hammel and Bernd Haynold in 2014.[6][10] It was moved to the genus Aria (Pers.) J.Jacq. ex Host as Aria meyeri (S.Hammel & Haynold) Mosyakin, Fedor. & McNeill by Sergei Leonidovich Mosyakin, Mykola Mykhaylovych Fedoronchuk, and John McNeill in 2025.[11] The type specimen, which is held in the State Museum of Natural History Stuttgart, was collected on the 12th of May 2013 by Hammel and Haynold in the edge of a forest south of Külsheim, Baden-Württemberg, Germany at an elevation of 380 m above sea level.[10]
Etymology
[edit]The specific epithet meyeri honours the German botanist Norbert Meyer.[4]
Distribution and habitat
[edit]It is endemic to Baden-Württemberg[2] and Bavaria, Germany,[3] where it occurs in an area of about 100 km2 in pine forests, secondary deciduous forests, forest margins, and pastures at elevations of 280–415 m above sea level.[1]
Conservation
[edit]It is a vulnerable species with a restricted distribution and a population of only about 250–999 individuals.[1] Aria meyeri is not specially protected by nature conservation laws,[12] but some of the populations are grow within legally protected areas, or within a military training area.[1] It is not known to be cultivated in any ex-situ conservation collections.[1]
References
[edit]- 1 2 3 4 5 6 Beech, E., Meyer, N. & Rivers, M.C. 2017. Sorbus meyeri. The IUCN Red List of Threatened Species 2017: e.T86100353A86101068. https://dx.doi.org/10.2305/IUCN.UK.2017-2.RLTS.T86100353A86101068.en. Accessed on 13 August 2026.
- 1 2 3 4 5 Aria meyeri (S.Hammel & Haynold) Mosyakin, Fedor. & McNeill (n.d.). Plants of the World Online. Retrieved August 13, 2026, from https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:77371504-1
- 1 2 3 4 5 Sorbus meyeri S. Hammel & Haynold. (n.d.). Botanischer Informationsknoten Bayern (BIB). Retrieved August 13, 2026, from https://daten.bayernflora.de/de/info_pflanzen.php?taxnr=36431&suchtext=&g=&de=&prev=prev
- 1 2 Blaich, G. (n.d.). Sorbus meyeri S.HAMMEL & HAYNOLD. Retrieved August 13, 2026, from https://guenther-blaich.de/pflseite.php?par=Sorbus+meyeri&abs=pflfmros&lan=x&grp=a
- 1 2 3 4 5 6 7 8 9 Meyer, T. (n.d.). Meyers Mehlbeere (Sorbus meyeri S. Hammel & Haynold). Blumen in Schwaben. Retrieved August 13, 2026, from https://www.blumeninschwaben.de/Zweikeimblaettrige/Rosengewaechse/blatt_regel.htm#Meyers%20Mehlbeere
- 1 2 3 4 5 6 7 8 Hammel, S., & Haynold, B. (2014). Sorbus meyeri – eine neue Art aus der Sorbus-latifolia-Gruppe. Kochia, 8, 1-13.
- 1 2 3 Meyer, N., & Hammel, S. (2023). Besondere Arten der Gattung Sorbus: Bemerkungen zu den Eigenheiten der Gattung Sorbus in Baden-Württemberg. Karlsruhe.
- ↑ Sennikov, A. N., & Kurtto, A. (2017). A phylogenetic checklist of Sorbus s.l. (Rosaceae) in Europe. Memoranda Societatis pro Fauna et Flora Fennica, 93, 1-78.
- ↑ Senckenberg Gesellschaft für Naturforschung. (n.d.). Sorbus meyeri. Chromosomenzahlen Zur Flora Von Deutschland. Retrieved August 13, 2026, from https://chromosomes.senckenberg.de/search/items?full_text=Sorbus+meyeri&taxa-level-0=0&taxa-level-1=0&taxa-level-2=0&taxa-level-3=0&taxon_id=&fields%5B62%5D=0&fields%5B69%5D%5Bmin%5D=47.21353887141794&fields%5B69%5D%5Bmax%5D=54.79556787598423&fields%5B70%5D%5Bmin%5D=7.156210937500001&fields%5B70%5D%5Bmax%5D=13.923789062500001&fields%5B85%5D%5Bmin%5D=&fields%5B85%5D%5Bmax%5D=#searchResults
- 1 2 Sorbus meyeri S.Hammel & Haynold. (n.d.). International Plant Names Index. Retrieved August 13, 2026, from https://www.ipni.org/n/77141459-1
- ↑ Mosyakin, S. L., Fedoronchuk, M. M., & McNEILL, J. (2025). Simplifying the nomenclature of Sorbus sensu lato: new nomenclatural solutions in Aria and Hedlundia (Rosaceae). Ukrainian Botanical Journal, 82(3), 206-224.
- ↑ Bundesamt für Naturschutz (BfN). (n.d.). Sorbus meyeri S. Hammel & Haynold. FloraWeb. Retrieved August 13, 2026, from https://www.floraweb.de/php/artenhome.php?name-use-id=35366