| Menegazzia williamsii | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Lecanoromycetes |
| Order: | Lecanorales |
| Family: | Parmeliaceae |
| Genus: | Menegazzia |
| Species: | M. williamsii
|
| Binomial name | |
| Menegazzia williamsii Kantvilas (2019)
| |
Menegazzia williamsii is a species of foliose lichen in the family Parmeliaceae. Found in New South Wales, Australia, it was described as a new species in 2019 by lichenologist Gintaras Kantvilas.