Eschew Materials( Player's Handbook v.3.5, p. 94)
You can cast spells without relying on material components.
You can cast any spell that has a material component costing 1 gp or less without needing that component. (The casting of the spell still provokes attacks of opportunity as normal.) If the spell requires a material component that costs more than 1 gp, you must have the material component at hand to cast the spell, just as normal.