Afrothismia kupensis sp. nov. (Thismiaceae), critically endangered, with observations on its pollination and notes on the endemics of Mt Kupe, Cameroon
- The prothallus of Lycopodium clavatum L.
- The case of "Pyrola aphylla" (Pyrola picta)
- Mycoheterotrophy - An Introduction
- Polyphyly of mycoheterotrophic orchids and functional influences on floral and molecular characters
- Rhizanthella omissa, a new species of underground orchid from south eastern Australia.