What you want is an opaque light to medium green on the cool side and on the warm side. It just saves time. Both of the colors can be made with the Thalo greens.
Here is my oil palette with colors laid out so you can compare where they are on the color wheel.
http://www.realcolorwheel.com/myoilpalettemap.htmThere you will find these lighter greens.
http://www.realcolorwheel.com/oilpalette25permgreenlt.htmhttp://www.realcolorwheel.com/oilpalette23greenopq.htmHere is the Thalo green Y/s, if your supplier doesn't have it, they should. Switch suppliers.
http://www.realcolorwheel.com/oilpalette24thalogreen.htmHere is my yellow oxide. Any yellow oxide or yellow ocher will do, they are all natural except for the mars colors, their Ok too.
http://www.realcolorwheel.com/oilpalette14yellowoxide.htmHere is thalo Purple, it's closer to blue then the Violet.
It's dual-toned in that the lighter colors differ when mixed with white or medium.o/
http://www.realcolorwheel.com/palette18diopurple.htmMost Cadmium colors have barium fillers.
Translucent Green earth is a color you can do without. It's too specialized. Unless you have a really big palette. Even with my biggest palette I don't find much use for it.
The opaque chromium green oxide isn't of much use either.
Burnt umber..
Mussini Burnt Umber, Translucent/opaque.
It is dense, permanent and opaque/translucent.
Although this color is very important, I have noticed not only does it have a high absorption rate of oil, it also attracts mold.
A suitable replacement can be made with Burnt Sienna and Ultramarine Blue.
Natural means from the earth, it's what you want.
http://www.realcolorwheel.com/oilpalette17btumber.htm>In Old Holland...what is the difference in Gamboge and Cobalt >(Aureolin) Yellow Lake?
Cobalt yellow is only really useful in w/c's as it is non-staining, not that I mind staining colors. Gamboge is better but best in w/c, Indian yellow is best for oil. (added 9-29-6) .. Today there are manufactures making good Indian yellows in watercolors, soon they all will.
Rembrandt rose, PV19 is a great color, it is a scarlet crimson.
http://www.realcolorwheel.com/oilpalette11remrose.htmQuin rose is probably very close. PV19 is not strong enough to be the magenta though, its a warm magenta that is not permanent. Its not the same strength as the Pathalocyanine green which you can mix to get the middle black. You need the PR122 magenta.
This is one of the transparent turquoises,
CCCY, Rembrandt Blue Green, Transparent.
It is a permanent synthetic. As long as it's transparent (cobalt is not) many brands will do. It's a mix of Thalo blue and Thalo green.
I use this color on my palette when I am painting water.
http://www.realcolorwheel.com/oilpalette22turq.htmChinese Vermilion is translucent, vermilion genuine is opaque.
You must have a cad red lit, a Medium red you could be mixed with a little magenta, medium red gets chalkie when you try to lighten it if you use an opaque yellow. Many brands have it, Grumbacher will do fine.
Phew.. that was a long post!! Nice!