Задание №56039 ЕГЭ Английский язык

Образуйте от слова BEAUTY однокоренное слово так, чтобы оно грамматически и лексически соответствовало содержанию текста.

Penicillin

Many of you are in this world only because fungi saved your life, or the life of one of your parents or grandparents. To get an idea what fungi is you need to remember a piece of bread that you once forgot in a bag, or a tea that stayed in a teapot for a week. You'll discover that your bread or your tea then got a ______________  greenish colour flourishing with small 'flowers'.