First looks to be either a Pachyphytum or xPachyveria (perhaps Pachyveria glauca). Second, a type of Haworthia pumila. Third could be one of several I'm thinking (perhaps Dudleya or Echeveria??). They all look like they could use a drink & maybe more sun. :)
Thanx. X pachyveria glauca, haworthia pumila and haworthia cymbiformis were my guesses... Unfortunately, they only get a couple of hours of sun in the morning. As for water, I'm always afraid of giving to much, since they are succulents. But maybe I exaggerate...
Well, now that you mention it, Haworthia cymbiformis is a good possibility for that last one. It's a bit darker color than I've seen. :)
In fact, it was not this dark when I bought in May last year... It was quite green all over. Perhaps it is just getting a bit dry (especially the lower "leaves"). Maybe because of my fear to give them water... But it has grown in size nevertheless.
No I don't think it is H. coarctata. H. pumila forms have the dots like yours & sometimes circles, looking like donuts...which inspired someone to name one Haw. 'Donut' ('Little Donut' or 'Little Circle' as well, I'm confused which names are valid). I have H. pumila 'Papillosa' which has had both circles & dots (they change as they grow). Some list H. papillosa as a species name. You might want to check out that one too.
Perhaps #3 is haworthia cymbiformis f. agavoides (?) I found this picture, which looks very similar... http://www.pottokakthus.com/photos/2599.jpg Anyway, i don't know whether the site is trustworthy. In the IPNI site http://www.ipni.org/index.html the designation haworthia cymbiformis f. agavoides is not registered...
