R Britt (britt@indigo.ucdavis.edu)
Sat, 19 Mar 1994 10:56:53 -0800 (PST)

I have a modestly small Heliamphora whose pitchers tend to
"umbrella" a few days after they open. That is, the rim pops down so
in cross section they are bent outwards from the center. Does anyone know
a general cause for this, ie to warm, humidity too low or high etc?

David B