Having glochids and sometimes barbed spines Opuntia's are probably some of the most "antisocial" cacti, hence Antticepp's joke. They also tend not to be grown much in countries where they cannot grow outdoors therefore take up too much greenhouse space as with tall Cerei. To those of us ou...

Well grown. I am sure your Florida climate helps too!. Not a species I know, but evidently named by Cardenas. Different authorities treat it as a separate species but David Hunt considered it Echinopsis bridgesii subsp. vallegrandensis, but then Hunt lumped a lot of things! Cardenas published it in ...

Hi All If you are as old as me you may have obtained seed from New Mexico Cactus Research = Horst Kuenzler. You may still find material grown from their seed with HK numbers. They suddenly seemed to disappear and I found this article about it. At the end there are links to pictures of some of the pl...

Mat on the BCSS Forum posted the link to the original article. https://www.pnas.org/doi/epdf/10.1073/pnas.1100628108 Presumably something akin to Pereskia would be the least ev0lved, but of course even Pereskia has probably changed from the original ancestor of the Cactaceae. The problem for the Cac...

Don't know if this has ever been posted before?

https://news.brown.edu/articles/2011/05/cacti

Also check against the description of Mammillaria huitzilopochtli v. niduliformis.

https://www.llifle.com/Encyclopedia/CAC ... duliformis

Not very big flowers but interesting cephalism bearing plants are Melocatus which we in cooler climes have a problem with but suit yours. https://succulentalley.com/melocactus/ As Anttisepp says the rainforest type of cacti given some shade would probably do well in your area, plus have reasonably l...

As Ben says it depends what is available at a cheap price in your country depending if it has to be imported. You use a lot of pumice in the USA, but it is expensive in the UK since it has to be imported. I looked up Akadama:- https://bonsaitonight.com/2016/07/15/all-about-akadama/ The British were ...

It depends how you want to show your images. If you want prints the size of a house door then high megapixel cameras are the answer. If you only want to digitally project them or view on a computer screen them probably 8 megapixels is good enough since that's about the resolution of most computer sc...

Its known as endogenous vivipary, you sometimes get it in the elongated fruits of the Eriosyce group = Neoporteria/Horridocactus types. Whether these seedlings ever survive in the wild I do not know. I believe certain red light can be a germination starter so maybe when these fruits ripen and change...

I believe it was the pandemic that started all these talks. However people who could not get to branch meetings of Societies or Cactus Clubs in the USA asked for them to continue. The viewers have also now become international as I don't know any that restrict you to being a member of that society? ...

Hi All, Just a reminder of the British Mammillaria Society Turbinicarpus ZOOM talk at 8 pm GMT tonight Thursday 14th December. Those in other time zones need to Google for a time converter from GMT to your time. These talks are live and not recorded so can only be viewed at the time stated. The emai...

Not sure of the species but out of flower they appear to be in the Horridocactus/Neochilenia section of Eriosyce.

The British Mammillaria Society will be holding a Zoom talk on former sections of Turbinicarpus on 14th December at 8pm or 20:00 GMT. Look on the web for a time converter for your time zone. This is a live talk not recorded therefore only viewable at that time. Joining code in link below. If you don...