Ulmus ismaelis
| Ulmus ismaelis | |
|---|---|
| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Eudicots |
| (unranked): | Rosids |
| Order: | Rosales |
| Family: | Ulmaceae |
| Genus: | Ulmus |
| Species: | U. ismaelis |
| Binomial name | |
| Ulmus ismaelis Todzia & Panero sp. nov. | |
Ulmus ismaelis Todzia & Panero is a small tree discovered circa 1997 in southern Mexico by Ismael Calzada in riparian forest along the Mixteco River system in northeastern Oaxaca, where it grows among large boulders in the limestone canyons.[1] The tree has also been found in Honduras and El Salvador. [2]
Description
Rarely growing to > 15 m in height, the tree has exfoliating orangish bark. The ovate leaves are coriaceoeus, < 9.6 cm in length by 4.6 cm broad, acute at the apex, pinnately veined, on short (2–5 mm) petioles; the colour ranges from dull green to light brown. The apetalous flowers are arranged as short racemes on leafless twigs, sparsely clustered on < 7 mm peduncles. The samarae are < 22 × 13 mm, tapering at the base to a < 4 mm stalk, and are shed during June and July.[1]
Pests and diseases
No information available.
Cultivation
The tree is not known to be in cultivation.
Etymology
Named for Mexican botanist and collector Dr Juan Ismael Calzada, who discovered the tree.
References
- 1 2 Todzia, C. A. & Panero, J. L. (1998). A new species of Ulmus (Ulmaceae) from southern Mexico and a synopsis of the species in Mexico. Brittonia: Vol 50, (3): 346.
- ↑ Linares, J. L. (2005). First record of Ulmus ismaelis (Ulmaceae) in Central America. Rev. Mex. Biodiv. vol.76 no.1 México. Jun. 2005 (in Spanish).