Could be a fungus like Vladimir said, could also be an insect egg or just dirt on a bit of fluff. However, I'm more concerned with how dusty the leaves are. I may just be dust or it could be the beginnings of a spider mite infestation. It's a good idea to wash off the leaves from time to time, like maybe every 4-6 weeks. Take them outside and hose them off, or if that's not possible, put them in the shower and shower them off with cool water. Then let them drain well and put them back where they were. It helps prevent spider mites as they're attracted to dusty plants. And your plants love the rinsing off!

Am guessing on the last two, the 1st some kind of Rhipsalis, the 2nd some kind of Epiphyte. I'd suggest the pots for the last 2 are rather too big (tho' I see you got this nice, chunky mix which is likely to be fast draining). Pls. excuse me for not wanting to repeat all the tips for Holiday Cacti (both Thanksgiving & Xmas). Pls. search around here for the posts which include a link to "Holiday Cacti", the excellent link which is so often provided here. They explain care & culture better than I could. As to the Jades above, other than feeling like your BIL should not have watered in new cuttings, I'd leave the rest of that to others as well. Just pls. do a search on Jades or Crassula ovata in the meantime, as there are mountains of info. on this posted right here. My short answer on the Jades is since he watered them in, I would NOT water them AT ALL until I saw new growth, but perhaps others will feel differently. Good luck w/ them all!

All of the zucchinis and all of the melons are dead. And my volunteer All Blue potato looks done for, too. I sprayed the pyrethrin, but either it was too late, or it didn't phase the bugs. Anyone see Starship Troopers? Or read the book? Was Heinlein a gardener? Maybe this is where he got the idea. The three remaining brassica in my raised bed are hanging in there. And I haven't seen any more leafminer damage. The potatoes are doing fairly well, except for one, a Carola. It sprouted, poked above the soil, then dried up and died, even though I took pains to keep the bed watered. I doubt if it'll come back. I bought a new hose, and it's a dang site better than carting a watering can all over the yard. Especially since, on my last attempt to drag home soil from Home Depot, I threw out my right elbow, and now it's painful to lift things. I harvested all of the fall-planted garlic. I guess they're curing in my dining room, which smells of eau de allium. My vacation's basically over, so I'll have to wait until this next weekend to do anything with them. I put the last of the tomatoes, a San Marzano, in a container outside. I buried it deep, about 70% of it underground. I also put some purple basil with it. I took the peat pots off of both of them, so we'll see if that makes a difference. None of my sunflowers are coming up. I planted four more seeds outside today. I told myself that when I got done with the yard and the garden, I'd start a thorough cleaning of the house. When that started looking ship shape, I'd go out shopping and maybe to a movie. I never quite got done with the yard. And I've got, um, 15 minutes left of my vacation? Sigh. Oh, well.

Yes, crazyhouse6, the crystal ball sconces come single. These are my final contenders, but leaning (right now) heavily toward the first one. The shade on it is actually glass. I also like the LENGTH (for my space) of the second one and the last two, but the last two are probably too modern. What do you guys vote for? Finding out later today if they can put the sconces on the towers without yanking out the towers and repainting. Here's my two favorite chandys and another inspiration photo so you can see where I'm coming from (if you don't already know!) - simple tile pattern, monochromatic, but romantic finishings: