Maybe you've never heard of the gutta percha, a tropical tree species that provided the sap used to make gutty balls.

也许你从未听说过 gutta percha ，这是一种热带树种，它的汁液可以用来制作 gutty 球。

He used wooden-shafted clubs (which tended to warp) and a " gutty" ball (made of the solidified sap of the Malaysian gutta-percha tree) .

他使用的是木制杆头的球杆（还带点弯曲）和“胶质”古塔球（由固化的马来西亚杜仲树树液制成）。