The problem first appeared a few weeks ago, and looked as if it had been eaten by something, with two wounds about 4mm in diameter exposing the internal flesh, but I saw no evidence of any creature at the time. The damage has extended into the interior leaving the hole shown in the photograph, but t...

Thanks for your replies, 7george and esp_imaging. For the record, I'm in Yorkshire, England - I've updated my profile to show that. There are no signs of fungus or other diseases, and unfortunately I didn't take photos before I did the surgery - the post was almost an afterthought! I don't feel exce...

This is a general question relating to the best way to treat a columnar cactus which has rotted from the top part-way down the stem. Mine has five basal stems, the largest being ~6" tall x1.5" across. Three of the stems have rotted from the top, including the tallest. I have cut the damage...

Wow, what a fantastic resource you've produced for those collectors, like me, who occasionally buy unnamed specimens from various non-specialist sources, and wish to identify what they've bought! I've managed to at least narrow down the identity of many of my unnamed ones using your photos. Many tim...

Thanks, esp_imaging. I remember C. strausii from many years ago when I started with cacti, (the collection sadly didn't last, for various reasons), and I had discounted it now because I felt that the ribs are further apart than I remember, and also when compared with most images I've seen of it. Als...

That's excellent teo - thankyou so much!

As a newbie who has spent some time trawling through the site to identify my plants without much success, I'd appreciate any more informed information relating to identity of the following plants, please:- DSC_0371.JPG DSC_0372.JPG DSC_0386.JPG DSC_0387.JPG DSC_0388.JPG IMG_4328.JPG IMG_4329.JPG DSC...