That's a Mouthful.

sunyata__ posted a Christmas Carol brainteaser yesterday. You've probably seen it, or somethign like it. It's the titles of various carols using a bombastically loquacious vocabulary. Her list ahd twenty and use dup a lot of the good songs. I managed to come up with five more. Can you figure out which carols they are?

21. Ilex and Hedera
22. Infant of Questionable Appellation
23. Promulgate upon an Inselberg
24. Seasonal Perennial
25. A Trireme, a Xebec and a Dhow Were Perceived

SatNYTX: 15.