Aside from lichens, name an another instance in the plant kingdom where fungi become intimately associated with green plants.

Explanation

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for an instance in the plant kingdom where fungi are closely associated with green plants, aside from lichens.

2. **Identifying the Relationship**: We need to identify a type of relationship between fungi and plants that is similar to lichens, which are a symbiotic association between fungi and algae.

3. **Recognizing Mycorrhizae**: One well-known instance of such an association is mycorrhizae. Mycorrhizae refers to the mutualistic relationship between fungi and the roots of green plants.

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