| MadSci Network: Botany |
First, you can search this site for terms such as xylem, phloem, and transpiration to find numerous answers. You can also use search engines such as google.com. A google.com search for plant circulatory system came up with several pages. Three are listed below and should give you a good start. Also search for terms such as xylem, phloem, tracheid, transpiration, vascular cambium, etc. References Plant Circulatory System I Plant Circulatory System II Long-distance plant traffic
Try the links in the MadSci Library for more information on Botany.