- Haworthia Update Volume 7 – Essays on Haworthia by Bruce Bayer
- Volume 7, Chapter 1:- Haworthia retusa ‘nigra’ – Another grand finale.
- Volume 7, Chapter 2:- Further exploration in Haworthia. Further to finale.
- Volume 7, Chapter 3:- A field trip to the Potberg area.
- Volume 7, Chapter 4:- What is typical Haworthia mutica?
- Volume 7, Chapter 5:- Still more Haworthia mutica and Haworthia mirabilis
- Volume 7, Chapter 6:- Field trip to Van Reenens Crest and Niekerkshek.
- Volume 7, Chapter 7:- More on Haworthia mirabilis and H. mutica from east of Bredasdorp.
.