Sentence:  The morphological and statistic analyses are also given to the <WSD>stellae</WSD> structure of Olivooides and Punctatus, which indicates that this structure is a result of adaptive evolu- tion to a lifestyle of fast-attaching after hatching, probably with the function of mucilage secretion. 
Meaning of the word marked with <WSD> tags:  (botany) A star-shaped structure.