Some Questions on "Phrags" . . . .

[NeoNJ]

I've decided to add a few Phrags to my collection of Paphs....and I have some questions...

I'm only asking coz I can't seem to find definitive answers on the Web.

I have Phrag. sedenii, Phrag Eric Young, Phrag Carol Kanzer, Phrag Mountain Maid....

It appears there are (2) types of Phrags - long-petaled and short petaled ??? Whats the cultural requirements of the Phrags I have which I believe are 'besseae' type short-petaled....?

I read alot about placing Phrags on "saucers of water".
What does this do ??? My first inclination is "humidity".
Is there another reason why people do this with Phrags?

Do they get fertilized with every watering ???

Thanks.