Are you sure it's a Yucca? It looks kinda like Agave Filifera/Parviflora.
Don't mean to confuse the issue further sorry!

Thanks for that Dave, I stand corrected :oops: .I was unaware of Terry Hewitt's death, and the movement of the Lamb's Collection to The Botanic Gardens in Spain.I know that the books are from the seventies and that the Lamb's would probably have died by now. We have lost so many great Cacti Authouri...

You are certainly in the right place for growing Cacti, Hegar. Its nice to see all your plants flowering, thanks for sharing them with everybody on this forum. We don't have the same conditions as you here in England. It was so sunny here today, so I decided to put some of my Cacti outside in the su...

The plant with flower remains left on it lower down is a Mammillaria not sure of the species?
about the other one it could be some sort of Cereus but not sure.
I'm sure someone on here will be able to ID it for you

WOW.. That's a fantastic selection K.W. I believe that Germany is VERY big on Cacti ? I own Erik Haustein's The Cactus Handbook and found this book INVALUABLE also have Franz Bercherer Success with Cacti he has a very extensive collection with over 10,000 cacti or so. I believe the German Royal Fami...

More like f.Centralifera looking at Daiv's pics on here

Could be a form of M. Compressa (f.Bernalensis)?

I have E. (Chamacereus) Sylvestrii the red form but there are loads of cultivars, mine is kind of spirally too, seems quite long stems compared to some others I have but they vary from clone to clone.
Some Coryphantha look like Mammillaria whilst juvenile but I still think its a Mammillaria

So did you re-home the obliging Opuntoid then

Same with some Mammillarias. Mammillaria Surculosa does for sure (I got caught on mine a few times) probably some of the hooked spines ones too. I've got a few 'nasty' ones are only too willing to get ya if your'e not careful LOL

No 2 looks like Aloe Brevifolia
No 5 looks like a juvenile A Ferox
I say 'looks like' because it hard to ID Aloes accurately
No 6 looks like Aloe DeWinteri
No 13 looks like a Lampranthus
No 15 is a Pachphytum
Hope this helps

Wow, that is one comprehensive list of books. I have one of them- J Rhija & R Subik I find it quite useful and informative bit short though. I have a few books one of my favourites is German Authourity on Cacti; Erik Haustein's The Cactus Handbook, it has over 500 pics of Cacti with descriptions...

I was googling the other week and saw Opuntia pads (Cladodes) used as sandals
(I want some...)LOL

Also the fruit of Myrtillocactus are edible and sold as Garambulos on markets in Mexico, the core of some Ferocactus are made into candies, and many fruits of Mammillaria are edible, also Echinocereus fruits(all taste like strawberries) also Hylocereus fruits (Dragon Fruit) are common nowadays altho...

This is a really useful topic Dave as it shows us ALL not just the newcomers and beginners new to the hobby (it takes over your entire life) of which cacti are susceptible to cold (tropical species) ie Buiningia that should really be overwinter inside the house over winter on a bright windowsill abo...