For many people there comes a time when they finally throw up their hands and decide to remove the Green Spot Algae leaves from their anubias. What they are left with is a nice healthy green stem (rhizome) with a few leaves at the end. Their anubias will continue to grow out of the end and they will still have a long naked green stem. All is not lost. You can nick the now empty rhizome with your sizzors or a knife 1/3 of the way through the stem at intervals. At every nick the rhizome will begin to bud and send up a new branch. Here is a drawing. You do not have to cut a "V" shape out. Just a straight down cut will do it. Leave enough space between your cuts for the branch as it grows. In this px I just drew some cuts in. It was in no way an illustration of how close your cuts should be.
Here is a px of some new branches forming on some empty anubias rhizomes. If you could see the end of the rhizome you would see the normal growth continuing as well. In the background you can see another piece of stem about 1 inch long that also has 2 new branches forming. Even if you have NO leaves on a healthy piece of rhizome and do this it will branch out.
FYI: This is Anubias barterii nana gold. The stem is about 3/16" around. It doesn't matter how big the stem circumference is, just nick it 1/3 the way through.