Was it ever established if N. ventricosa "Madja-as" is truly ventricosa?

[Sashoke]

I recall a couple years ago there being some amount of controversy around N. ventricosa "Madja-as" and whether or not it even was truly a ventricosa, there were some opinions it was a variant of N. burkei rather and everyone was misidentifying it. I haven't seen any resolution to this, and having a couple of these "Madja-as" in my collection I was curious about what they truly were. So... yeah. Is it ventricosa or burkei?

 

[Clue]

I know Wally Suarez considered the Madja-as form N. burkei on the Pitcher Plants forum a few years ago; the original description of N. burkei is very incomplete, but Jebb and Cheek's old monograph "Skeletal Revision of Nepenthes" (1997) does say that N. burkei is found on Panay (where Mt. Madja-as is located) and notes that N. ventricosa is only found on Luzon. The leaf veins are the only non-pitcher feature J&C use to distinguish N. burkei and N. ventricosa - the former has 6-7 pairs of longitudinal veins in the lamina while the latter has 3-4. I don't think any recent literature has mentioned the Madja-as form specifically, and I've never personally seen an adult Madja-as plant to compare.

http://pitcherplants.proboards.com/post/109672/thread

Type specimen of N. burkei is remarkably incomplete: http://apps.kew.org/herbcat/getImage.do?imageBarcode=K000651451

 

[Sashoke]

I know Wally Suarez considered the Madja-as form N. burkei on the Pitcher Plants forum a few years ago; the original description of N. burkei is very incomplete, but Jebb and Cheek's old monograph "Skeletal Revision of Nepenthes" (1997) does say that N. burkei is found on Panay (where Mt. Madja-as is located) and notes that N. ventricosa is only found on Luzon. The leaf veins are the only non-pitcher feature J&C use to distinguish N. burkei and N. ventricosa - the former has 6-7 pairs of longitudinal veins in the lamina while the latter has 3-4. I don't think any recent literature has mentioned the Madja-as form specifically, and I've never personally seen an adult Madja-as plant to compare.

http://pitcherplants.proboards.com/post/109672/thread

Type specimen of N. burkei is remarkably incomplete: http://apps.kew.org/herbcat/getImage.do?imageBarcode=K000651451

Thanks for the thorough answer. I know Paul owned a very mature Madja-as, my plants came from cuttings of his, but I believe he sold the plant.

Thats very interesting how incomplete the description of burkei is!