Greg Bourke

Nepenthes pitopangii is a tropical pitcher plant endemic to the Indonesian island of Sulawesi. Discovered in 2006, N. pitopangii was initially known from a single plant at a remote locality in Lore Lindu National Park. Efforts made in the following years to locate further populations on surrounding mountains proved unsuccessful. In March 2011, a new population of N. pitopangii consisting of around a dozen plants was discovered more than 100 km from the type locality. Nepenthes pitopangii appears to be closely related to N. glabrata, from which it differs most obviously in its upper pitcher

Nepenthes nigra is a tropical pitcher plant known from a number of mountains across Central Sulawesi, where it grows at elevations of 1,500–2,700 m (4,900–8,900 ft) above sea level. The specific epithet nigra refers to the dark colouration of the pitchers and stem. The species is closely related to N. hamata and N. tentaculata.

Nepenthes appendiculata is a tropical pitcher plant known only from the Hose Mountains of central Sarawak, Borneo, where it grows at elevations of 1450–1700 m above sea level. The species is characterised by an enlarged glandular appendage on the lower lid surface, for which it is named.

Nepenthes leonardoi is a tropical pitcher plant known from a single locality in central Palawan, the Philippines. It is closely allied to several other Palawan endemics, including N. deaniana, N. gantungensis, and N. mira. The traps of this species reach at least 24 cm in height. Some specimens are noted for producing very dark, almost black, upper pitchers. In his Carnivorous Plant Database, taxonomist Jan Schlauer treats N. leonardoi as a heterotypic synonym of N. deaniana.

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