This is my teachers website if your interested. Lots of interesting articles/information.
Its closely resembles Wu from Wu Jian Chuan but with some differences. Developed in Hong Kong by Cheng Tin-Hung who learned from his uncles (an indoor student Wu Jian Chuan and from Qi Min-xuan. Qi was originally taught by his father Qi Ke-san, but his main teacher was a Buddhist monk named Ching Yat (another Buddhist name, which means Pure One).
Ching Yat had befriended the renegade soldier, Wang Lan-ting, who had (after killing some Manchus) been forced to flee to the temple where Ching Yat resided. Wang had learned from Chen Keng-yun, the son of Chen Chang-xing, and later from later from Yang Lu-chan). This info comes from the above link, basically it all goes back to Yang Lu Chan and the Chen village in one way or another.