1, 2 & 3 ... I have NOT a clue ...
#4 looks like a Echeveria gibbiflora to me. Look at this site to see if you don't agree:
http://www.petulaplants.com/wp-content/ ... public.pdf" onclick="window.open(this.href);return false;
... at nearly the bottom of the "list" on this page is the above name. Click on it, view the picture and see if that doesn't seem to match to you.
#5 is indeed a Haworthia, and FAR, FAR from being a Haworthia expert, I think yours shows a
similarity to: H. beukmannii, H. chromutica, H. magnifica AND H. retusa
It MIGHT be a H. cooperi, although the leaves of yours seem to be somewhat darker that what I normally see from an H. cooperi.
There are SO many variants, and sub-species that I sometimes think that one can NEVER identify a Haworthia with exactitude. I have seen Haworthia on the internet that look COMPLETELY different identified with the same name. I just can't say for SURE! I KNOW I haven't been very helpful here, but maybe the next list of 3 sites will help SOME!
The following sites MIGHT prove useful to you for providing an ID now or in the future.
1)
http://www.haworthia.info/en/gallery/01.html" onclick="window.open(this.href);return false;
2)
http://www.succulentguide.com/cactus/?genus=haworthia" onclick="window.open(this.href);return false;
3)
http://www.thesucculentgarden.com.au/hawor.html" onclick="window.open(this.href);return false; (a nice site ... hover your mouse over the small pictures to get ENLARGED views of them)
