Answer:
The Usher family line
Explanation:
The title of the story includes the word fall which foreshadows the ending of the Usher family line. The decrepid state of the house described in the beginning foreshadows the dissolution of the Usher family.
The appositive phrase defines the term asterism. It tells the reader that an asterism is an "informal constellation name".
Appositive phrases are often surrounded by commas. They follow a noun and rename or describe it. Another example is "My dog, a yellow lab, loves to play ball." In this sentence the appositive phrase is "a yellow lab". It describes the noun - dog using a noun - lab.
The answer would be plant because the foliage is a part of the plant. They are related.