The Royal Horticultural Society designate Ginkgo biloba 'Pendula' as 'Pendula Group' as there are several variants available for example: 'Pendula Chiny' from Poland, 'Pendula Gruga' from Germany and 'Pendula Rowe' from the U.S.A. The Ginkgo biloba 'Pendula' in The national Collection of Ginkgo biloba & Cultivars does seem to exhibit a different habit to the afore mentioned cultivars. 
 
Ginkgo biloba 'Pendula' syn. 'Weeping' is a female tree which was introduced by Charles Prosper Van Geert from Kalmthout, Belgium between 1862 and 1865. Reference (A, Van Geert Nurseries,  Belgium, Cat. 1862 p.62) The original clone is now quite a rare tree in cultivation. 
 
Description - This is a cultivar like the 'Horizontalis', it is generally top worked creating small, trees with slightly drooping shoots that ultimately result in a tree with in a wide, umbrella-like crown. Crowns at the age of 10 reach up to 2 m in diameter, while the height of plants depends on the height of grafting (usually about 2 m). The leaves are indented and have relatively long petioles. Shoots can be long or short, the leaves on the shoots clustered a few around each bud. It reliably produce beautiful golden-yellow autumn colour.