Sentence:  LXII. MORYSIA. Cass. / "Achenium" <WSD>calvous</WSD>, terete, furrowed, wingless. [...] Glabrous shrubs, with scattered oblong, dentate, or entire leaves, and corymbose yellow flowers: closely related to "Athanasia", from which they differ in the <WSD>calvous</WSD> achenia. 
Meaning of the word marked with <WSD> tags:  Lacking bristles or pappuses.