Nepenthes macrovulgaris is considered a lowlander from where it grows in its natural environment. From reading in Pitcher Plants of Sabah by Charles Clarke this species had a wide distribution. It is not a common species and is considered similar to N. hirsuta. I've seen some photos and this species is nicer than N. hirsuta. The peristome has some red stripes and the pitchers appear more cylindrical. I've had difficulty with this species growing it as a windowsill plant. The first plant wasn't fully acclimatized and suffered severe transplant shock and died. The second ones I purchased have done much better. I've been growing them on my windowsill for some time now without immediate success. They continued to grow but never really produced in pitchers. Now that they have acclimated to indoor humidity, they are growing and pitchering. I suspect that this is one of those lowland species that would do fine in typical lowland conditions rather than as a windowsill plant. There doesn't seem to be a lot of literature about this species and how other hobbyists are growing it. This species doesn't appear as popular as other lowlanders like N. ampullaria, N. rafflesiana, etc. so that may explain the lack of information as to the different methods of cultivation for N. macrovulgaris. I would consider this species a "middle of the road" lowlander for indoor conditions. It isn't as demanding as N. ampullaria but more difficult than N. rafflesiana or N. truncata. 

Cultivation: Moderate to difficult as a windowsill specimen; probably an easy grower under typical lowland conditions
Market availability: size 3; somewhat limited
Species variability: none that I'm aware of other than locality differences
$ / size: inexpensive $12.00 and up for larger plants
Cuttings: none available for trade.
Sex: unknown