Lime identity crisis
So I have been growing a "lime tree" for (~10??) years as a container plant, inside during our Chicago winters and outside in the spring-fall. I just finished my dissertation and have been really busy and kind of neglected the tree as far as removing fruits and pollinating by hand.
Well, some of my limes were yellowish and when I cut into them, they tasted like lemon! I brought the tree from Monrovia at a local nursery and it was labelled "lemon (Eureka Improved if I remember, I lost the tag)." Aside from the embarassment this causes me (I am a plant nut) I cannot believe I lost the original tag and have had the plant for so long I cannot remember letting the fruit stay on the tree for seveal months (less than a year, but not much).
So my question is how do I know for certain if I have a lime or a lemon tree? I have looked closley at the leaves and they resemble each other (at the nursery). I just read a previous post on this forum and it say lemons can take up to nine months to fully ripen and I think all these years I have been harvesting too fast.
By the way, if it is a lemon tree I will be more than happy because I use lemone more than lime.