Pteroceltis is a genus of small trees in the family Cannabaceae and containing the living species Pteroceltis tatarinowii.[1] The genus is now restricted to an endemic range in China and Mongolia. The genus has a fossil record which includes species described from Korea, Japan, Germany, and the United States.[2]
| Pteroceltis Temporal range:
| |
|---|---|
| |
| Pteroceltis tatarinowii at the Morris Arboretum | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Rosales |
| Family: | Cannabaceae |
| Genus: | Pteroceltis Maxim. |
| Species[citation needed] | |
The fossil record includes one described species from North America, †Pteroceltis knowltoni from the Middle Eocene Cockfield Formation in Tennessee, while an undescribed species is known from the Klondike Mountain Formation of Washington. One late Oligocene species †Pteroceltis tertiaria has been described from strata near Rott, Germany. The largest diversity of fossils are from Asia, with †Pteroceltis shanwangensis from the Miocene Shanwang flora in China, the Abura flora of Japan preserved †Pterocarya ezoana, and both †Pteroceltis taoae plus †Pteroceltis kungshimensis known from the Miocene Hoengyeong Formation in North Korea.[2][3]
References
edit- ^ Zhang, Y.; Wang, G.; Zhou, J.; Zhou, X.; Li, P.; Wang, Z. (2019). "The first complete chloroplast genome sequence of Pteroceltis tatarinowii (Ulmaceae), an endangered tertiary relict tree endemic to China". Mitochondrial DNA Part B. 4: 487–488. doi:10.1080/23802359.2018.1544861.
- ^ a b Manchester, S. R.; Chen, Z.D.; Lu, A. M.; Uemura, K. (2009). "Eastern Asian endemic seed plant genera and their paleogeographic history throughout the Northern Hemisphere". Journal of Systematics and Evolution. 47 (1): 1–42. doi:10.1111/j.1759-6831.2009.00001.x. S2CID 84266950.
- ^ Wong, W.; Dilcher, D.; Uemura, K. (2019). "Three new fossil-species of Pteroceltis (Cannabaceae) from East Asia". Phytotaxa. 409 (1): 1–11. doi:10.11646/phytotaxa.409.1.1. S2CID 198254559.