Guioa scalariformis Welzen in Blumea 33: pl. 20a-c. 1988
- Type: NGF (Sayers) 21576
- Type: NGF (Sayers) 21576 (BM)
- Type: NGF (Sayers) 21576 (CANB)
- Holotype: NGF (Sayers) 21576 (L)
- Type: NGF (Sayers) 21576 (LAE)
- Type: NGF (Sayers) 21576 (U)
- =Guioa spec Hartley et al. in Lloydia 36: 270. 1973