genus of a graph

例句：

1. 1. The genus of the plant is known as the rose.
   这种植物的属被称为玫瑰。
2. 2. The scientists have identified several new species in the rainforest.
   科学家们已经识别出雨林中的几种新物种。
3. 3. Species diversity is a key factor in understanding ecosystems.
   物种多样性是理解生态系统的关键因素。