Adaptogens

I am just trying to learn about adaptogens myself...tried to "google" and got a few places to learn. I requested this book from the library, I will let you know if I like it.
http://www.herbalist-alchemist.com/shop/?shop=1&itemid=1187

Also I heard Kevin Gianni mention "Holy Basil"also called "Tulsi" and many people also talk about "Maca",  these are adaptogens also and here are 2 articles about other adaptogens.
http://miracleadaptogens.com/health.html

http://www.chiro.org/nutrition/FULL/Adaptogenic_Herbs.shtml

To Be Considered A True Adaptogen, A Plant
Must Conform To The Following Criteria:

1. The plant must be nontoxic and totally harmless to the body. It must allow the continuing normal physiological activity of the individual.

2. The action it exerts must be nonspecific and should maintain normal body functions despite a wide range of onslaughts to the body (i.e. stress).

3. It should normalize body functions irrespective of existing pathological conditions. Unlike allopathic drugs which carry with them the possibility of side effects, adaptogen's must benefit the body without disturbing it or doing it harm. Not many plants possess adaptogenic properties. In fact it is estimated that only one in 4,000 plants is classified as an adaptogen