In southamerica it is often called "flauta dulce" ("sweet flute", for some curious reason I cannot imagine)

"Non fippled flutes are often called transverse flutes.
"
Actually the direction of the tube has nothing to do with it.
I have a metal instrument that goes back to the 1950's that was basicaly a fife with a windway (fipple) built actually molded in to it. The Ocarina wouod also be a transverse fipple flute.

Jose, There were a few old world names for the Recorder. In Italy, Flauto Dolce as the same (or the similar spelling Flauta Dulce) in Spanish speaking areas. I believe that this referred to the sweet sound of the instrument. In Germany, Blockflote. (With appropo. umlauts) because it has a block of wood that is inserted at the playing end to create the windway. It was also referred to in scores as simply a flute at times.

The Transverse flute was Traverso, Qwerflote (With umlaut on O) -meaning cross-flute. All basically referring to the way it is played as JB suggested. BTW: there are some flutes that are played without windways that are not played transversely. The Panpipes (Also called Syrinx) are one example but there are a few basic tubes with finger holes that qualify as edge-toned embouchure instruments. One can play the soda-bottle, jug or the cap of a bic pen (A bit shrill) and it qualifies as a flute. Actually, come to think of it, a park ranger at the Hatteras light http://www.hatteras-nc.com/light/
told me that in high winds the column actually begins to hum. Because of the location of the doors and windows, it may be more simlar to a transerse flute.

This reminds me of another indian flute, the Kena (Quena, in Spanish and bolivian altiplane dialects). A cane or wood tube with holes for the fingers and a large "embouchure" with a simple edge. No windway and quite difficult to play, even for a flutist, I guess. i.e I could never made it sing, but I did not study the flute at the time I had the opportunity.

This instrument is typical of the Andes region, where the ancient Incas and later the people who inherited that culture still dwell.

A beautiful sound, sweet but a little sad, according to the normal mood of those peoples.
Those andean people also play a similar flute as the pan flute and other strange wind istruments, I also recall one looking (and sounding like the Alp horn.

My dictionary auto-switched to spanish, no way to revert it to english and it is no longer correcting my typos....

If I'm not mistaken there is a flute that was made from a femur bone that is around 30K years old.

I think that the principles of the flute was bound to be discovered by ancinet peoples. All you need is a broken reed and some wind. Even a cut off piece of bamboo swung fast around the head may sound a tone. So it was bound to happen.
I enjoy the indigenous people flute sounds. The Andean music is very rich in flute. There are also some really nice S.W. American Indian flute players that are a pleasure to listen to. Some of the music of Katherine Hoover is very much inspired by those sounds and is relatively popular now. http://www.papagenapress.com/

We just played a Katherine Hoover piece in Flute Choir. It is called Kyrie. I really like Kokopeli also! We just held a flute summit on native/north/south american flutes/music/rituals with flutes. It was very interesting.

-Dennis