A brief review of Cumulopuntia sphaerica (part 1) - Hoxey, Paul 

A brief review of Cumulopuntia sphaerica (part 2) - Hoxey, Paul 

A brief review of Cumulopuntia sphaerica (part 3) - Hoxey, Paul 

A Rare Flowering - Tony Roberts

Book Review - Further Studies in the opuntioideae (Cactaceae) HUNT, D. - Gprdon Rowley

Collecting seed of Opuntioideae - Bates, Brian

Corynopuntia – an underrated genus in culture - Roberts, Tony G.

Corynopuntia aggeria (Ralston & Hilsenbeck) P. Griffith 2002 - Roberts, Elton

Day four of a guided cactus tour to North West Argentina and Chile - Partridge, Mike

Is that another Tephrocactus? - Partridge, Mike

Micropuntia pygmaea - Roberts, Elton

My favourite cactus localities - Bates, Brian

Opuntia chaffeyi - Roberts, Elton and Hill, Alan

Opuntia clavarioides - Byles, R. S. 

Opuntia Ficus-Indica; Chromosome Races and Origins - Gordon Rowley

Opuntioideae of Peru - an overview (part 1) - Hoxey, Paul

Opuntioideae of Peru - an overview (part 2) - Hoxey, Paul

Puna/Austrocylindropuntia/Maihueniopsis clavarioides - Roberts, Elton et al. 

Puna no more! - Roberts, Tony G.

Punotia lagopus (K Schumann) Hunt 2011: A TSG Discussion - A TSG Discussion

Punotia lagopus, a decade on from a first encounter - Crook, Ivor

Tephrocactus alexanderi ssp. bruchii - Roberts, Elton

Tephrocactus articulatus in my collection - Roberts, Tony G.

Tephrocactus bonnieae \\\"buckyballs\\\" - Roberts, Tony G.

The Fall of Opuntia Pachypus - John Cox

The genus Micropuntia- Roberts, Elton

The genus Pterocactus - Papathanasiou, Costas N.

The Genus Pterocactus Schumann 1897 - A TSG Discussion

The Origins of Opuntia ficus-indica - Ivor Crook

The TSG preferred list of names for small South American Opuntioids - A TSG Discussion

Tunilla in habitat - Partridge, Mike