Wu (Hao)-style T'ai Chi Ch'uan
The Wu or Wu (Hao) style (simplified Chinese: 武氏 or 武/郝氏; pinyin: wǔshì or wǔ/hǎoshì) of t'ai chi ch'uan of Wu Yu-hsiang (武禹襄, 1813-1880), is a separate family style from the more popular Wu-style (吳氏) of Wu Chien-ch'üan. Wu Yu-hsiang's style was third among the five t'ai chi ch'uan families in seniority and is fifth in terms of popularity.
Read more about Wu (Hao)-style T'ai Chi Ch'uan: History