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Ulmus 'Fiorente'
''Ulmus'' 'Fiorente' is a hybrid cultivar derived from a crossing of the Siberian Elm ''Ulmus pumila'' clone 'S.10' (female parent) with ''Ulmus minor'' 'C.02' by the Istituto per la Protezione delle Piante (IPP), part of the Italian National Research Council, in Florence. The cultivar was patented in 2006, and introduced to commerce in 2012.〔Santini A., Fagnani A., Ferrini F., Ghelardini L., & Mittempergher L., (2007). Fiorente and Arno elm trees. ''HortScience'' June 2007, Volume 42, Issue 3, pp 712 – 714. American Society for Horticultural Science, Alexandria, VA 22314, USA. ()〕
==Description==
'Fiorente' is monopodial, and capable of exceptionally rapid development; during trials in the Northern Apennine on poor clay soils growth exceeded 1.0 m in height and 1.5 cm in trunk diameter per annum. The tree's habit is conical, with a pronounced apical dominance; lateral growth is limited, the crown therefore rather columnar. The alternate leaves are of a moderate size, < 8 cm long × < 5 cm broad. Generally lanceolate in shape, the leaves are rough on the upper surface and pubescent beneath; they remain green well into the autumn and are shed relatively late. The tree usually commences flowering in its fourth or fifth year, during late February in Italy. The sessile samarae are ovate, < 14 × 17 mm.〔
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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