the processing steps. Song Dynasty Tea was an important crop during the Song dynasty. Tea farms covered 242 counties during this time. This included expensive tribute tea, which was tea from Zhejiang and Fujian provinces that was exported to Southeast Asian and Arab countries. In the Song dynasty, tea started to be pressed into tea cakes (usually black tea). Some were embossed with patterns of the Chinese dragon and the Phoenix, and were called exotic names including: Large Dragon tea cake, Small Dragon tea cake, Surpassing Snow Dragon ball cake, Fine Silver Sprout, Cloud Leaf, Gold Money, Jade Flower, Inch of Gold, Longevity Sprout, Eternal Spring Jade Leaf, Dragon in the Clouds, Longevity Dragon Sprout, Dragon Phoenix and Flower, and Eternal Spring Silver Sprout. Ming Dynasty The Ming dynasty scholar Wen Zhenheng's encyclopedic book Zhǎng Wù Zhì (; Treatise on Superfluous Things), volume 12, contains the following descriptions of several famous Ming Dynasty teas: Huqiu and Tianchi tea During this time, Huqiu tea (; lit. "Tiger Hill tea"), not to be confused with the black tea of the same name from the Nilgiris District in what is now Tamil Nadu, India) was purportedly developed as the finest tea in the world; however, the production quantity was rather small, and the production is regulated by the Chinese government. Some, however, consider its taste to be second to Tianchi tea (; lit. "Heaven Pool"). Jie tea Jie tea from Changxing County in Zhejiang Province is regarded highly by connoisseurs, although it is rather expensive. NB: Jie is the short name for Luō Jiè (). Luo Jie is the name of a mountain bordering Zhejiang and Jing Qi where, during the Ming dynasty, jie meant boundary. Chang Xin lay to the south of Luo Jie mountain while Jing Qi lay to the north of it. Chang Xin still retains its name today. Luo Jie tea from Gu Chu Mountain in Changxing County in Zhejiang Province was also known as Gu Zhu Violet Shoot. Gu Zhu Violet Shoot had been an imperial tribute tea since the Tang dynasty for nearly nine hundred years until the middle of the Qin dynasty. Gu Zhu Violet Shoot was revived again in the 1970s as a top grade tea in China. NB. Jin Qi is now called Yi Xin township. Jin Qi tea was also known as Yang Xian tea. Ruo leaves are leaves from Indocalamus tessellatus bamboo.