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Ulmus ismaelis
''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.〔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.〕 The tree has also been found in Honduras and El Salvador. 〔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). ()〕
==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.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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