† 1. călyx, ycis, m.,  =  κάλυξ [καλύπτω; hence, any covering, husk, hull, shell], the bud, cup, or calyx of a flower. 
- I.  Lit.: narcissi, Plin. 21, 5, 12, § 25. rosae, id. 21, 4, 10, § 14; 21, 18, 73, § 121: papaveris, id. 20, 18, 76, § 198: lilii, id. 21, 5, 11, § 23.
 
- II.  Transf. 
 
- A.  The shell of fruits, Plin. 15, 23, 25, § 92; 15, 22, 24, § 86; 23, 4, 43, § 86. 
 
- 2.  An egg-shell, Plin. 28, 2, 4, § 19.
 
- B.  The covering of shell-fish, etc., the shell, Plin. 9, 31, 51, § 100, 9, 56, 82, § 174; 32, 4, 14, § 39.
 
- C.  A covering of wax around fruit to preserve it, Plin. 15, 17, 18, § 64.