Who was the first person to attract attention to Metasequoia glyptostroboides?

Relevant documents show that at the end of 194 1 10, Ganduo, a former professor of forestry at Central University, went from western Hubei to Chongqing, Sichuan to check the weather forecast of Chongqing and more cities. He passed Modao Town, which is about 2500 meters in China. He found a strange and unusual tree beside a stream called Modaoxi, which is commonly known as the water cave locally. At that time, the leaves had fallen and it was impossible to collect specimens.

Experts confirmed that Gando first saw Metasequoia glyptostroboides in Modaoxi in the winter of 194 1, which should be in early February or later. The phenology and duration of Metasequoia glyptostroboides have not been paid attention to in previous studies and literatures. According to the almanac records and phenological observation, it is normal to see the deciduous landscape of Metasequoia glyptostroboides in October of the lunar calendar. In other words, Mr. Gando's record of seeing fallen Metasequoia in October (lunar calendar) is also correct.