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by DaveW
Mon Jul 09, 2018 9:42 am
Forum: The Cactus & Succulent Plant Forum
Topic: Micropuntia gracilicylindrica
Replies: 7
Views: 234

Re: Micropuntia gracilicylindrica

I don't have any Micropuntia's, I did see some on sale at one of the plant Mart's a few years back, but when I returned to the stall they had all gone. I suppose you could consider them the North American equivalent of Pterocactus in their habit. I keep looking and hope to acquire some in time. Ther...
by DaveW
Sun Jul 08, 2018 10:51 am
Forum: The Cactus & Succulent Plant Forum
Topic: Cactus ID
Replies: 3
Views: 336

Re: Cactus ID

Nobby, Norbert Sarnes would be the best one to identify them for you. He is sometimes on the forum so you could PM or email him giving him the link to your post above.

memberlist.php?mode=viewprofile&u=3061
by DaveW
Fri Jul 06, 2018 8:02 pm
Forum: The Cactus & Succulent Plant Forum
Topic: Disappointed
Replies: 12
Views: 578

Re: Disappointed

For G. schuetzianum Graham Charles goes on to say:- "The plant remains mysterious. Many people have looked near Cruz del Eje to try and find the population but without success. The only recent reference I can find is a tantalising statement in Till & Neuhuber (1993) where they say "Nea...
by DaveW
Thu Jul 05, 2018 5:33 pm
Forum: The Cactus & Succulent Plant Forum
Topic: A simulated plant
Replies: 3
Views: 282

Re: A simulated plant

We found both yellow and red flowered plants growing in the same area Christer. Of those I saw in flower I think the red ones were the commonest. As you probably know the plant is so called because out of flower they look like (simulate) the Copiapoa species they grow with, but of course Copiapoa's ...
by DaveW
Thu Jul 05, 2018 5:22 pm
Forum: The Cactus & Succulent Plant Forum
Topic: Disappointed
Replies: 12
Views: 578

Re: Disappointed

Graham Charles in his Gymno Book reduces it to synonymy under G. monvillei. The only picture of it I can find on the Web is this:- http://kaktusresimleri.biz/displayimage.php?album=39&pid=1017#top_display_media Gymnocalycium monvillei has both white and pink flowered forms of course:- http://www...
by DaveW
Mon Jul 02, 2018 10:30 am
Forum: Monthly Photo Competitions
Topic: July 2018 - Little cacti
Replies: 7
Views: 263

Re: July 2018 - Little cacti

I will start you off again then:-

Blossfeldia liliputana on own roots, about 8 years old from seed (1p coin 2cm = 7/8" across)

Blossfeldia lilliputana2.jpg


Lophophora alberto-vojtechii (5p coin 1.8cm = 3/4" across)

L-alberto-vojtechii.jpg
by DaveW
Mon Jul 02, 2018 9:59 am
Forum: The Cactus & Succulent Plant Forum
Topic: Solufeed
Replies: 21
Views: 716

Re: Solufeed

It has been published below that some bacteria associated with cactus roots can dissolve rocks and make nutrients available to them, therefore these obviously exist in dry conditions. But whether these are the same that break down Urea fertilisers in normal moist soils I do not know? See:- http://ne...
by DaveW
Sun Jul 01, 2018 11:21 am
Forum: The Cactus & Succulent Plant Forum
Topic: Great Chainsaw Massacre
Replies: 3
Views: 395

Great Chainsaw Massacre

How to get rid of a Carnegia. One of the replies says:- "They cut it down to widen the and pave the street. They still have done no work on the street. Three saguaros were chopped down." https://www.youtube.com/watch?v=GPSfvMTmmmU Yet they can be moved and there is a market for them, so mu...
by DaveW
Fri Jun 29, 2018 7:03 pm
Forum: The Cactus & Succulent Plant Forum
Topic: Solufeed
Replies: 21
Views: 716

Re: Solufeed

I'm no chemist so it's simply what I have read, which is that Ureic nitrogen needs to be broken down by bacteria that inhabit moist soils and with cacti we allow the soil to dry out between watering's so killing or depleting these bacteria, meaning Ureic nitrogen is usually not easily available to p...
by DaveW
Fri Jun 29, 2018 9:08 am
Forum: The Cactus & Succulent Plant Forum
Topic: Yavia cryptocarpa offset
Replies: 7
Views: 280

Re: Yavia cryptocarpa offset

R.I.P, one of those peculiar occasions where though the stock was still perfectly healthy after flowering the scion simply dried up on the stock. However I have another now I am attempting to root. I have had the same trouble of scions shrivelling on healthy stocks before with Mammillaria luethyi et...

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