Sentence:  The example of the <WSD>thyrse</WSD> of "Eugenia" leads us to understand several inflorescences which resemble also racemes or panicles; such are the <WSD>thyrses</WSD> of the Lilac. 
Meaning of the word marked with <WSD> tags:  A type of inflorescence; a compact panicle having an obscured main axis and cymose subaxes.