Thanks!Those raised ridges are often called "ribs", yes. The structure surrounding the opening (the circular ribbed lip) is called a peristome. Isn't botany miraculous sometimes?!By the way, it's is what this structure looked like when it was still living, fifteen months back: http://paulbardenroses.com/nepenthes/bosch.jpg
very nice b+w view of this plant -- the structure and texture really show off well thanks to the lighting and perspective .... and it's quite transformed from the color image (and much bigger than the bw led me to believe) ..... how come it died? cold snap?
very nice b+w view of this plant -- the structure and texture really show off well thanks to the lighting and perspective .... and it's quite transformed from the color image (and much bigger than the bw led me to believe) ..... how come it died? cold snap?
Pitchers of this genus are relatively short-lived, last at most 10-14 months before being replaced by new ones. Some last only a few weeks at peak form.