Latin
Latin (, or , ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through ...
for "
pear
Pears are fruits produced and consumed around the world, growing on a tree and harvested in the Northern Hemisphere in late summer into October. The pear tree and shrub are a species of genus ''Pyrus'' , in the Family (biology), family Rosacea ...
-shaped") is a
natural hybrid
In biology, a hybrid is the offspring resulting from combining the qualities of two organisms of different breeds, varieties, species or genera through sexual reproduction. Hybrids are not always intermediates between their parents (such as in ...
Field Guide to the Pitcher Plants of Sumatra and Java
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 larger ...
''. Redfern Natural History Productions, Poole. It is known only from
Mount Talang
Mount Talang ( id, Gunung Talang) () is an active stratovolcano in West Sumatra, Indonesia. Talang has two crater lakes on its flanks, the largest of which is wide and is called ''Lake Talang''.
According to the Smithsonian Institution Global ...
in
Sumatra
Sumatra is one of the Sunda Islands of western Indonesia. It is the largest island that is fully within Indonesian territory, as well as the sixth-largest island in the world at 473,481 km2 (182,812 mi.2), not including adjacent i ...
, to which ''N. talangensis'' is
endemic
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...
Carnivorous Plant Newsletter
The ''Carnivorous Plant Newsletter'' is the official publication of the International Carnivorous Plant Society (ICPS), the largest such organization in the world. It is headquartered in Walnut Creek, California.
History and editorship
The newsle ...
'' 23(4): 101–114. Prior to this it was placed within '' N. bongso'' and some of the older literature identifies this hybrid as ''N. bongso'' × ''N. inermis''.
''Nepenthes inermis'' × ''N. talangensis'' has been the subject of taxonomic confusion in the past. In an article published in 1973 on the ''Nepenthes'' of Borneo, Singapore, and Sumatra, botanist
Shigeo Kurata
is a Japanese botanist and '' Nepenthes'' taxonomist whose work in the 1960s and 1970s contributed much to the current popularity of these plants.Clarke, C.M. & C.C. Lee 2004. ''Pitcher Plants of Sarawak''. Natural History Publications (Borneo), ...
incorrectly identified specimens of this hybrid as belonging to '' N. dubia''.Clarke, C.M. 2001. ''
Nepenthes of Sumatra and Peninsular Malaysia
''Nepenthes of Sumatra and Peninsular Malaysia'' is a monograph by Charles Clarke on the tropical pitcher plants of Sumatra, Peninsular Malaysia, and their minor surrounding islands. It was published in 2001 by Natural History Publications (Borneo ...
''. Natural History Publications (Borneo), Kota Kinabalu.
In 1997,
Matthew Jebb
Matthew Hilary Peter Jebb (born 1958) is an Irish botanist and taxonomist specialising in the ant plant genera ''Squamellaria'', ''Myrmecodia'', ''Hydnophytum'', ''Myrmephytum'' and ''Anthorrhiza'', as well as the carnivorous plant genus ''Nepe ...
Mount Talang
Mount Talang ( id, Gunung Talang) () is an active stratovolcano in West Sumatra, Indonesia. Talang has two crater lakes on its flanks, the largest of which is wide and is called ''Lake Talang''.
According to the Smithsonian Institution Global ...
(''Kurata s.n.'' SING).
Charles Clarke
Charles Rodway Clarke (born 21 September 1950) is a British Labour Party politician, who was the Member of Parliament (MP) for Norwich South from 1997 until 2010, and served as Home Secretary from December 2004 until May 2006.
Early life
Th ...
later identified ''Kurata s.n.'' as representing ''N. inermis'' × ''N. talangensis''.
The natural hybrid is similar to ''N. dubia'', but can be distinguished on the basis of several stable characters. The hybrid has a wider pitcher lid that is never relfexed beyond 90 degrees and the pitcher cup is not appressed in the lower parts as in ''N. dubia''. In addition, the mouth of ''N. inermis'' × ''N. talangensis'' is raised towards the back as opposed to being horizontal.
In 2001, Kurata described this hybrid as a new species, ''N. pyriformis''. Clarke rejected this interpretation in his monograph ''
Nepenthes of Sumatra and Peninsular Malaysia
''Nepenthes of Sumatra and Peninsular Malaysia'' is a monograph by Charles Clarke on the tropical pitcher plants of Sumatra, Peninsular Malaysia, and their minor surrounding islands. It was published in 2001 by Natural History Publications (Borneo ...
'', published the same year. Clarke found that the
type specimen
In biology, a type is a particular wiktionary:en:specimen, specimen (or in some cases a group of specimens) of an organism to which the scientific name of that organism is formally attached. In other words, a type is an example that serves to a ...
of ''N. pyriformis'', ''Kurata & Mikil 4230'' NDC, matches the appearance of ''N. inermis'' × ''N. talangensis'' "in most respects". Following Clarke's interpretation, Kurata excluded ''N. pyriformis'' from his list of ''Nepenthes'' species the following year.Kurata, S. 2002. ''Proceedings of the 4th International Carnivorous Plant Conference'': 111–116.