Bracket fungi, trichoderma, absence of asexual spores, basidiospores, conidia, ustilagoHow many of the above are related to basidiomycetes ?ThreeFourFiveTwo

To determine how many of the listed organisms are related to basidiomycetes, we will review each term and its affiliation with the group.

1. Bracket Fungi: These are indeed classified under basidiomycetes. They are known for their shelf-like fruiting bodies.

2. Trichoderma: This genus is a type of fungus, but it belongs to the Ascomycetes, not the Basidiomycetes.

3. Absence of Asexual Spores: This term does not denote a specific organism; rather, it's a characteristic that could apply to certain fungi.

4. Basidiospores: These are the reproductive spores produced by basidiomycetes. Therefore, this term is definitely related to basidiomycetes.

5. Conidia: These are asexual spores that are produced by certain fungi in the Ascomycetes group, thus not related to basidiomycetes.

6. Ustilago: This is a genus of fungi that is included in the basidiomycetes group, known as smut fungi.

Summary

From the analysis:

• Bracket fungi (1)
• Basidiospores (1)
• Ustilago (1)

Thus, a total of three are related to basidiomycetes.

Final Answer

Three.