All of a sudden, my house palm plant is sprouting out these spidery, rubbery-like stalks. There are about 5-6 so far & most are on the largest plant in the pot, but there are some smaller ones starting to grow from the smaller plants. I have never seen these before & I've had the plant 1.5 years. About 6 months ago, we moved to a new house. The old one didn't have much light & in the new house this plant sits by a glass door & gets plenty of light. What are these & what do I do with them?