Hypnum
a genus of mosses belonging to the order Bryineæ. Archegonia and capsules are borne on special lateral branches. The sexual organs are formed in August and September, and the capsules take from 10 months to a year to ripen. HYPOCHÆRIS (hip-ō-kē'-ris), a genus of plants of the natural order Compositæ, sub-order Cichoracex, of which one species, H. radicata, or long rooted cat's ear, is extremely common in meadows and pastures in Great Britain.
Its leaves and flowers resemble the dandelion.