Sentence:  The calyx of Theophraſta is a ſmall, permanent perianthium, divided into five obtuſe ſegments, making obtuſe angles alſo with one another: [...] the <WSD>ſtyle</WSD> is ſubulated, and ſhorter than the corolla: the ſtigma is acute. 
Meaning of the word marked with <WSD> tags:  The stalk that connects the stigma(s) to the ovary in a pistil of a flower.