Crypts? No crypt I know of has stems nor propagates that way.

"Sandy" wrote in message
...
Sounds like one of the Cryptocorynes, I have seen them do this and
elongate
the main stem. If you cut off the stem and plant it do the two parts
continue growing, the top part normally and the bottom producing small
plantlets?

Some of them seem to propagate like this, the stem bends over and where it
touches the gravel it roots.

--
Don`t Worry, Be Happy

Sandy