''Nepenthes'' × ''cantleyi'' (; after

Rob Cantley Robert Cantley is a conservationist and Managing Director of Borneo Exotics, a Sri Lankan-based plant nursery specialising in tissue-cultured and seed-grown ''Nepenthes'' species and hybrids. Cantley has contributed to a number of papers on ''Nepen ...

) is a natural hybrid involving '' N. bicalcarata'' and '' N. gracilis''.McPherson, S.R. & A. Robinson 2012. ''

Field Guide to the Pitcher Plants of Borneo This list of ''Nepenthes'' literature is a listing of major published works dealing with the tropical pitcher plants of the genus '' Nepenthes''. It includes specialised standalone publications and taxonomic monographs released as part of larg ...

''. Redfern Natural History Productions, Poole. It is quite rare outside

Brunei Brunei ( , ), formally Brunei Darussalam ( ms, Negara Brunei Darussalam, Jawi alphabet, Jawi: , ), is a country located on the north coast of the island of Borneo in Southeast Asia. Apart from its South China Sea coast, it is completely sur ...

, despite its parent species being more widespread throughout

Borneo Borneo (; id, Kalimantan) is the third-largest island in the world and the largest in Asia. At the geographic centre of Maritime Southeast Asia, in relation to major Indonesian islands, it is located north of Java, west of Sulawesi, and eas ...

.Clarke, C.M. 1997. '' Nepenthes of Borneo''. Natural History Publications (Borneo), Kota Kinabalu. The morphology of the pitchers closely resembles ''N. bicalacarata'', although the peristome is more similar to that of ''N. gracilis''. The characteristic spines of ''N. bicalcarata'' are greatly reduced and are only present as small bumps. This hybrid has the growth habit of ''N. gracilis'', with the stem scrambling along the ground. It grows in open, sandy areas. The pitcher fluid is notably

acid In computer science, ACID ( atomicity, consistency, isolation, durability) is a set of properties of database transactions intended to guarantee data validity despite errors, power failures, and other mishaps. In the context of databases, a sequ ...

ic like that of ''N. gracilis'', with pH values as low as 1.82 being recorded.

References

* Fretwell, S. 2010. Twelve days in Borneo – a dream expedition: part 4. ''

Victorian Carnivorous Plant Society Journal ''Victorian Carnivorous Plant Society Inc.'', formerly titled simply ''Victorian Carnivorous Plant Society'' and also known as the ''VCPS Journal'', is a quarterly periodical A periodical literature (also called a periodical publication or simp ...

'' 98: 6–13. Carnivorous plants of Asia cantleyi Nomina nuda {{Nepenthes-stub