I have a Paphiopedilum armeniacum. There are three young runners. The small,
bottom leaves became brown. Besides, the old runner which had flower before
became brown too. What is this?

Paph. armeniacum is not the easiest species for beginners. Since its growth
habit resembles a strawberry, you might do better with it in a wide shallow pot
or even a basket. What type of potting medium are you using? The brown leaves
on the young runners indicate a problem at the roots. Your potting medium may
be too soggy. Check the roots. On the other hand, it is perfectly normal for
Paph. growths to die off after they bloom. Cut off the dead leaves with a
sterile razor blade, but don't remove the old stub until you are sure the newer
growths have their own roots.
If you have any further orchid questions, e-mail me direct.
Iris,
Central NY, Zone 5a, Sunset Zone 40
"If we see light at the end of the tunnel, It's the light of the oncoming
train."
Robert Lowell (1917-1977)