stylostome

例句：

1. 1. The plant's calyx is a protective covering for the flower.
   这植物的花托是花朵的保护层。
2. 2. The gynoecium of this species is unique in its ability to support multiple flowers.
   这种物种的雌蕊具有独特的能力，能够支撑多个花朵。
3. 3. In botany, the calyx and gynoecium are important structures that define the shape and structure of the flower.
   在植物学中，花托和雌蕊是定义花朵形状和结构的重要结构。