I water my back yard frequently and one morning found these little odd little strand-like growths in a patch of lawn about 100 cm square on July 23rd, 2008. Each cluster consisted of approximately 20-25 bodies, each about 1 cm long. The bodies were quite flexible (though not easily broken) and, although they adhered to one another, could be separated into individual bodies with minimal effort. Each cluster sprouted from the green parts of both grasses and catnip. I don't know when they first appeared, but they have persisted for about 15 days without changing either in size or form. Can anyone give me an idea as to what I these are?