Bates, Brian

Collecting seed of Opuntioideae

My favourite cactus localities

Byles, R. S.

Opuntia clavarioides 

Cox, John

The Fall of Opuntia Pachypus

Crook, Ivor

Punotia lagopus, a decade on from a first encounter

The Origins of Opuntia ficus-indica

Hoxey, Paul

A brief review of Cumulopuntia sphaerica (part 1)

A brief review of Cumulopuntia sphaerica (part 2)

A brief review of Cumulopuntia sphaerica (part 3)

Opuntioideae of Peru - an overview (part 1)

Opuntioideae of Peru - an overview (part 2)

Papathanasiou, Costas N.

The genus Pterocactus

Partridge, Mike

Day four of a guided cactus tour to North West Argentina and Chile

Is that another Tephrocactus?

Tunilla in habitat

Roberts, Elton

Corynopuntia aggeria (Ralston & Hilsenbeck) P. Griffith 2002

Micropuntia pygmaea

The genus Micropuntia

Tephrocactus alexanderi ssp. bruchii

Roberts, Elton and Hill, Alan

Opuntia chaffeyi

Roberts, Elton et al.

Puna/Austrocylindropuntia/Maihueniopsis clavarioides

Roberts, Tony G.

Corynopuntia – an underrated genus in culture

Puna no more!

Tephrocactus articulatus in my collection

Tephrocactus bonnieae \\\"buckyballs\\\"

A Rare Flowering

Rowley, Gordon

Opuntia Ficus-Indica; Chromosome Races and Origins

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

TSG Discussions

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

The Genus Pterocactus Schumann 1897: A TSG Discussion

The TSG preferred list of names for small South American Opuntioids