File:Nepenthes tobaica5.gif

Summary
Nepenthes tobaica herbarium specimens: a. upper portion of the stem of a female plant, b. male inflorescence of the same number, c. fruiting raceme, d. male flower.

Source: Danser, B. H. 1928. The Nepenthaceae of the Netherlands Indies. Bulletin de Jardin de Botanique, Buitenzorg, Série III, 9 (3-4):249-438.