I am by no means an expert on Rhipsalis, but I have been helping the Indianapolis Museum of Art Greenhouse ID some of their Rhips - I believe the second plant you are showing is either R. cappilliformis or R. campo-porto ana. R. cappilliformis has a larger diameter stem than R. campo-porto ana which is small enough to look almost hair-like. It is hard to judge the size of your plants stem as there is nothing in the frame for perspective. If you look these up, you might be better able to ID them. I do wish there was more info on Rhipsalis in general, but, it is what it is!! Both of these varieties are found in Brazil I believe and other areas of South and Central America. They are epiphytic and/or lithophytic as most (if not all) Rhipsalis are, and thus they do best in dappled light with humid, moving air. They will tolerate more light and less humidity, but they grow best in the same conditions as bromeliads and orchids. Both of the above mentioned varieties work well on wood mounts or hanging baskets and I have seen R. campo-porto ana used as background planting on the mounts of Staghorn ferns.
Hope this helps -
