Yes, I'm familiar with that paper. I wasn't advocating the reduction of Borzicactus to synonymy under Cleistocactus. In fact, if you look at the links I posted, I was seeking to contrast the flowers of C. samaipatanus with those of Borzicactus and Loxanthocereus to support its exclusion from those g...

That is not a closed flower Phil, it is a Borzi. flower. I disagree. It's quite similar to Cleistocactus winteri though more flared at the end than many cleistos. Have another look: samaipatanus: https://www.inaturalist.org/observations/18847860 (I think this is subsp. divi-miseratus) or https://ww...

No Echinopsis (better Lobivia) bridgesii in there either, I reckon.

and a Cleistocactus rather than a Borzicactus.

But bear in mind that E. bridgesii and T. bridgesii are not the same thing.

I'm guessing the plant is only a couple of cm across? Mine have produced flowers when ridiculously small.

Yes, these recovered in time (photos are from 2014).

AmyJay wrote: ↑Sat Jul 01, 2023 3:17 pmwhat does sunburn look like on a cactus?

Cyrill uses the species name soehrensii for all the plants in this genus http://tephroweb.ch/tu/tukulturpflanzen.htm soehrensii being the type of the genus. With so many names based on vague and/or incomplete descriptions without a type or location information or a photo thre's something to be said ...

It's always nice to have paper versions but, in the absence of that, there are e-versions of some of the older ones https://cactuspro.com/biblio/en:bradleya