Celtis australis [SEP] parent taxon
Celtis australis
Celtis australis, commonly known as the European nettle tree, Mediterranean hackberry, lote tree, or honeyberry, is a deciduous tree native to southern Europe, North Africa, and Asia Minor. The tree was introduced to England in 1796.
Description.
The tree can grow to 25 m in height, though 10 m is more common in cooler climates. The bark is smooth and grey, almost elephantine.
The alternate leaves are narrow and sharp-toothed, rugose above and tomentose below, 5–15
the Zagros forests, growing with "Quercus brantii, Celtis australis, Platanus orientalis, Fraxinus" sp., and "Cerasus mehaleb". 
Although two more recent Iranian treatises maintain the original taxon, Richens (1983), in line with Boissier's original "U. campestris" identification, sank "U. boissieri" as "Ulmus minor", along with six other elms considered species by Soviet botanists. Grudzinskaya (1977) incorrectly stated that ""U. boissieri" was described by Boissier in the rank of a species