秋季丹桂第1次出现开花始期、开花末期记为第1批开花；作者在丹桂第1批开

The first flowering period of Osmanthus osmanthus in autumn is recorded as the first batch of flowering. Batch flowering; Osmanthus osmanthus continued to observe after the second flowering, and it was observed that in some years on the osmanthus tree observed, there was still a phenomenon that the petals of one or several flowers were completely open and withered and fell off, which was recorded as the third batch of flowering ; the fourth batch of flowering was observed and recorded in individual years until no more flowering occurred.

The first occurrence of flowering at the beginning and end of autumn is recorded as the first batch of flowering; The author discovered the phenomenon of a second flowering after the first batch of Dangui blossomed, and recorded the second batch of Dangui blossoming just like the first flowering period; After the second flowering of Dangui, further observation was conducted, and it was observed that in some years, one or several flowers on the observed Dangui tree still had fully opened petals and withered and shed, which was recorded as the third batch of flowering; The fourth batch of flowering was observed and recorded in individual years, until no further flowering occurred.

The first flowering period and the last flowering period of osmanthus fragrans in autumn are recorded as the first batch of flowering; The author found that there was a second flowering after the first flowering of Dangui, and recorded the second flowering of Dangui as the first flowering period. After the second flowering of osmanthus fragrans, the observation was continued, and it was observed that the petals of one or several flowers were still completely open and withered in some years, which was recorded as the third batch of flowering; The fourth batch of flowering was observed and recorded in individual years, until the phenomenon of flowering no longer appeared.