However, based on the context you've given, "melancholy" could be interpreted as a feeling of gloominess or sadness associated with the changing nature.
Here's why:
* "Nature is not always tricked holiday attire..." suggests that nature isn't always bright and cheerful.
* "...but the same scene which yesterday breathed perfume and glittered..." implies a contrast between the past, which was vibrant and beautiful, and the present, which may not be.
So, the passage hints at a possible shift in the atmosphere, perhaps from a joyful, vibrant spring or summer to a more somber fall or winter. This change could evoke a sense of melancholy.
To understand the precise meaning of "melancholy" in the context you're thinking of, please provide the full passage.