Flora and Fauna
- 1852
- The Azolla page
- Includes comparison of A. filiculoides Lam. (subgenus Azolla) and A. pinnata var. africana (subgenus Rhizosperma)
- 1854
- Botrychium lunaria: Moonwort
- A number of photographs of fertile spikes and fronds of this species, and its identifying features.
- 1855
- Order Charales
- Information on this order of green algae containing a single family, Characeae, and their phylogenetic relationships.
- 1856
- Caulerpa brachypus: Mini Caulerpa
- Photographs and information on this species, including its taxonomy, description, habitat, distribution, life history, population biology, physical tolerances, community ecology and invasion information.
- 1857
- Oreopteris limbosperma
- Several photographs of the Mountain Fern, also classified as Thelypteris limbosperma or Thelypteris oreopteris, and its description.