Ulmus ismaelis
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| Ulmus ismaelis | ||||||||||||||
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| Ulmus ismaelis Todzia & Panero sp. nov. |
Ulmus ismaelis Todzia & Panero is a small tree recently discovered in southern Mexico. Rarely growing to > 15 m in height, the tree has exfoliating orangish bark, and is endemic to riparian forest along the Mixteco River system in northeastern Oaxaca, where it grows among large boulders in the limestone canyons. 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 flowers are arranged as short racemes on leafless twigs, sparsely clustered on < 7 mm peduncles. The samarae are < 22 mm by 13 mm, tapering at the base to a < 4 mm stalk, and are shed during June and July [1].
The tree is not known to be in cultivation beyond North America.
[edit] Etymology
The tree is named for Mexican botanist Ismael Calzada, who discovered the tree.
[edit] References
- ^ 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.
