Possible Clues:

• Gland in the brain
• __ gland: organ that secretes melatonin
• Gland that produces melatonin
• Kind of gland
• The sound of the bell comes around in the shape of 30 across
• Gland where Descartes thought the soul was
• Sort of gland that's at home in ring
• Resembling a pine cone
• In the ring of the bell could there be cones, not leaves, there?
• ___ gland (melatonin secreter)