Terry S. wrote:Are the green ones at the back hybrids with something like Discocactus zehntneri?

The clustered ones are Discocactus zehntneri subsp. buenekeri (syn. Discocactus buenekeri) and the two singular ones below them are Discocactus buenekeri x horstii hybrids which I neglected to explain, sorry.

Discocactus horstii This dwarf cactus is one of the real gems of the cactus world with its symmetrical form, dark brown epidermis, clustered white appressed spines and white woolly areoles. http://jp29.org/dhorstii11y.jpg http://jp29.org/dhorstii11xx.jpg http://jp29.org/dhorstii09z.jpg http://jp29....

Arrojadoa dinae in bud, flower and fruit: http://jp29.org/00br320.jpg http://jp29.org/00br323.jpg http://jp29.org/00br329.jpg http://jp29.org/00br319.jpg http://jp29.org/00br317.jpg http://jp29.org/00br321.jpg http://jp29.org/00br322.jpg http://jp29.org/00br324.jpg http://jp29.org/00br327.jpg http:...

I have updated the Cultivation Notes web page at ..........

http://jp29.org/brcultx.htm

.......... In particular to reflect the updated soil mix that I use for these cacti.

Beautiful plants, and I'd love to have more in my collection. Unfortunately my current setup (open air in NoCal) isn't entirely compatible with providing them with the right care. I'm trying some Micranthocereus now and will see if they thrive or even survive long term. I do hope you are successful...

Great James, If only my greenhouse was heated I could grow them as well as you do! No wonder you moved to the USA from cold old UK. :grin: Thanks Dave. I know, I know! Dan Bach’s greenhouses (where I house many of my plants) are not heated - but the winter nighttime temperature inside them rarely d...

The Soil Mix I use: I have always experimented with soil mixes -- I think I have used about every one that has been devised during my growing lifetime -- and I have found all those that were of coarse and gritty texture, thus providing excellent drainage and root aeration, consistently produced heal...

Added a page relating to Pilosocereus piauhyensis (sensu lato) (hyperlink) - a tentative listing. http://jp29.org/00br382.jpg plants grown from seed in 10” plastic pots http://jp29.org/00br383.jpg old stems are often greenish http://jp29.org/00br386.jpg new growth stems are mostly blue ..... and so ...

Added a page relating to Micanthrocereus flaviflorus subsp. alvinii (hyperlink) - a beautiful new listing via J. Lode









..... and so on.

juster wrote:Some beautiful plants here James, that Coleocephalocereus is stunning. Thanks for sharing.

Thank you.