prothallus /prō-thalˈəs/ or prothallium /prō-thalˈi-əm/

1. The gametophyte or sexual generation in ferns and related plants, a small plate of tissue derived from a spore and bearing antheridia and archegonia
2. The homologous stage in gymnosperms

prothallˈial, prothallˈic or prothallˈoid adjective

• have a wolf by the ears
• have a wolf in the stomach
• have a word with
• have bats in the belfry
• have been around
• have been had on toast
• have been in the sunshine
• have been in the wars
• have been there before
• have bought it
• have by the throat
• have cause
• have clean hands
• have deep pockets
• have designs on
• have done
• have done with
• have egg on one's face
• have everything
• have first call on
• have got
• have got to
• have had a few
• have had a gutful
• have had a gutful of