The collective noun for mushrooms is

A group of mushrooms is known as a 'troop'.

Collective nouns are names for a collection or a number of people or things. Words like group, herd, and array are collective noun examples.

A collective noun has a singular form but it denotes more than one person or thing: should it therefore be accompanied by a singular verb, a plural verb, or is it an ‘anything goes’ situation, and either verb form is acceptable?

As a general rule, you can check the dictionary if you’re not sure – every collective noun has a piece of information about what verb form it should take, and most can be followed by either a singular or a plural verb. Check out more info on how to use collective nouns at OxfordDictionaries.com.

Check out a compilation of a list of collective nouns from links below:

Tinyonline.co.uk

Collectivenouns.biz

Tuesday, September 19 2017
Source: http://users.tinyonline.co.uk/gswithenbank/collnoun.htm

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