| Kingdom: Chromista |
| Phylum: Oomycota |
| Class: Oomycetes |
| Order: Peronosporales |
| Family: Pythiaceae |
| Genus: Phytophthora |
| Subject: Phytophthora nicotianae Breda de Haan |
| Kingdom: Plantae |
| Phylum: Magnoliophyta |
| Class: Magnoliopsida |
| Order: Scrophulariales |
| Family: Gesneriaceae |
| Genus: Gloxinia |
| Subject: Gloxinia spp. L'Her. |