(Very) low light plants?

My growing case is up and running, but the area at the bottom back underneath the shelf, approximately a foot high, gets pretty low light. Humidity is a fairly consistent 70% or higher, and a fan mounted under the shelf ensures that air circulation is not an issue. Any suggestions for minis I might be able to grow back there to utilize the space? Thanks!
-Stephen

 

Thanks, Marni. Looking at your Kefersteinia photos on here, I'm now inspired to try this genus. Now, where to find them is the challenge. Andy has a few. Will call to see if he has any of the ones you mentioned. -Stephen

 

Hm, I was wondering about Bulbos, but assumed it would be too dark for most of them. Any particular species you might recommend for quite low light?

 

Great lecture last night at our local orchid society by Andrea Niessen of Orquideas de Valle, who of course brought lots of plants with her to sell. I got three tiny Lepanthes species: calodycton, felis, and elegantula, and also Kefersteinia parvilabris. Looking forward to seeing how they do in the new case. Thanks all for the input!

 

Mixed results. Lepanthes elegantula produces lots of leaves but doesn't bloom; Lepanthes calodycton never has more than two leaves at a time, but it has actually bloomed for me. Lepanthes felix didn't survive a month. Both Kefersteinia species (lojae and parvilabris) are doing well with healthy new growths, and the parvilabris produced a single bloom this week. Two Bulbo species I got from Zach don't seem to be doing much of anything. They don't grow, but they don't die - so I'm satisfied with that for now.

 

Winter temps are low 70s during the day, ten degree drop at night. Humidity is a fairly constant 70%, up to 90% when the humidifier cycles on. You're probably right and the Bulbos are maybe just slow because it's winter.