Ginkgo biloba 'Pyramidalis' is a male form introduced in 1969 originating from the U.S.A.  There is a good specimen of this tree to be found growing at The Holden Arboretum, Mentor, Ohio. it is an upright tree with a good pyramidal shape. Height is expected to be in excess of 12 m, with a spread of approximatley 8 m at the base. 

Ginkgo biloba ' Pyramidalis'