I must admit that I am unhappy about M. brauneana should be a synonym of M.klissingiana. I know that this is probably heresy, but to me it looks closer to forms of M. formosa. Hunt condemned brauneana to synonomy because of geography, whilst saying that wild populations had not been found. That was in 1977, so somewhat outdated, and there are plants that have been found in Tamaulipas that look not unlike the plant shown above. If you look at klissingiana the typical form has both wool and axillary hairs, and all spines are white. Its tubercles are quite narrow too. M. brauneana just doesn't fit in my opinion.
_________________ Chris43, moderator
Zephyrmila
Number of posts : 9 Location : Northern Spain Registration date : 2020-11-22