Very sorry to read. A few years ago we visited him.
I won't forget his half cotton tips. Every (sub)species had its own for pollination.

So, I got distracted this evening from some research I was doing by another mystery. It was originally discovered in 1933 at Taberbourt in Taroudannt Province, at the southern foot of the High Atlas in the Souss valley (This site is not named in maps and is unknown to our Moroccan colleagues!). Bri...

Taberbourt is only 20 km, about 12 miles, as the crow flies, from Aoulouz, the nearest town. Both situated alongside the same cliffs. If you want to describe a locality, what whould you rather do: call it by the name of a hamlet even many locals don't know or by the nearest town or village that feat...

Thanks a friend of mine who is a librarian in Montpellier I got hold of a copy of the relevant pages of Christian Raynaud's 1988 thesis Esquisse pour une mise en place de la flore de la Méditerranée occidentale à partir de certains taxons critiques de la flore marocaine : Helianthemum (Cistaceae) ; ...

You 're right: it is a pain sometimes to find certain historically significant information. In my searches I every so often find a pdf file of a book and just save it on my computer for future reference.Doing so I do take the occasional cyber security risk but until now I got away with it thanks to ...

The gist I think is that they are eaten by goats. In areas with a lot of goats they can only survive on cliffs where goats cannot reach them. A. joannis was growing in the open at both sites and, especially at the second site, plants grew in a normal, erect manner with a maximum stem length of 6-8in...

I have asked M. Audissou about Taberbourt and Tabourbourt and this is his reply: Je pense qu'à propos de Taberbourt et Tabourbourt, il s'agit de la même ville. Je n'ai pas visité cette localité mais celle d'Aoulouz à quelques kilomètres à l'Est de Tabourbourt en aval du nouveau barrage qui n'existai...

The thread on Apteranthes joannis shows there is a certain interest in the contents of earlier Asklepios issues. Whether that is enough to justify the effort of digitalisation I don't know. The cactuspro people might be willing to lend a hand if the Asklepios copyright owners allow cactuspro to publ...

I haven't seen Audissou's seed list mentioned here yet. I stumbled onto it while looking for links to some of his publications.
Last update last November.

http://jean-andre.audissou.pagesperso-orange.fr/

Would it be an idea to ask them to join BCSS? Many Asclepiads are succulents. They undoubtedly have a lot of expertise and organisational skills that might come in handy.