''Nepenthes lamii'' is a tropical

pitcher plant Pitcher plants are several different carnivorous plants which have modified leaves known as pitfall traps—a prey-trapping mechanism featuring a deep cavity filled with digestive liquid. The traps of what are considered to be "true" pitcher p ...

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 ...

New Guinea New Guinea (; Hiri Motu Hiri Motu, also known as Police Motu, Pidgin Motu, or just Hiri, is a language of Papua New Guinea, which is spoken in surrounding areas of Port Moresby (Capital of Papua New Guinea). It is a simplified version of ...

, where it grows at an altitude of up to 3520 m

above sea level Height above mean sea level is a measure of the vertical distance (height, elevation or altitude) of a location in reference to a historic mean sea level taken as a vertical datum. In geodesy, it is formalized as ''orthometric heights''. The comb ...

, higher than any other ''

Nepenthes ''Nepenthes'' () is a genus of carnivorous plants, also known as tropical pitcher plants, or monkey cups, in the monotypic family Nepenthaceae. The genus includes about 170 species, and numerous natural and many cultivated hybrids. They are mos ...

'' species.McPherson, S.R. 2009. ''

Pitcher Plants of the Old World ''Pitcher Plants of the Old World'' is a two-volume monograph by Stewart McPherson on the pitcher plants of the genera ''Nepenthes'' and ''Cephalotus''. It was published in May 2009 by Redfern Natural History Productions and covers all species kno ...

''. 2 volumes. Redfern Natural History Productions, Poole. Although once confused with '' N. vieillardii'' and previously regarded as conspecific with the closely related '' N. monticola'', it is now recognised as a distinct species.Robinson, A., J. Nerz, A. Wistuba, M. Mansur & S. McPherson 2011. ''Nepenthes lamii'' Jebb & Cheek, an emended description resulting from the separation of a two-species complex, and the introduction of ''Nepenthes monticola'', a new species of highland pitcher plant from New Guinea. In: McPherson, S.R. '' New Nepenthes: Volume One''. Redfern Natural History Productions, Poole. pp. 522–555. The

specific epithet In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bot ...

''lamii'' honours

Dutch Dutch commonly refers to: * Something of, from, or related to the Netherlands * Dutch people () * Dutch language () Dutch may also refer to: Places * Dutch, West Virginia, a community in the United States * Pennsylvania Dutch Country People E ...

botanist

Herman Johannes Lam Herman Johannes Lam (3 January 1892 in Veendam – 15 February 1977 in Leiden) was a Dutch botanist. Lam studied at Utrecht University, where he was awarded a Doctor of Biology in 1919. Lam was the appointed the director of the '' Rijksherbarium' ...

, who made one of the earliest known collections of this species.Cheek, M.R. & M.H.P. Jebb 2001. Nepenthaceae. ''Flora Malesiana'' 15: 1–157.

Botanical history

Early collections

, after whom the species is named, made a number of collections of ''N. lamii'' during the Van Overeem Expedition of 1920. He collected both male and female floral material on October 17, 1920, on the flanks of Doorman Top (now known as Mount Anggemuk), West Papua, at an elevation of 3250 m (or 3200 m). These specimens are collectively designated as ''Lam 1637''. Lam made a further collection of ''N. lamii'' on the following day, October 18, this time from 3520 m on Doorman Top. It represents the uppermost altitudinal limit for this species and for all ''Nepenthes''. This material also consists of both male and female parts and is designated as ''Lam 1654''. Both of Lam's specimens represent greatly stunted, dwarf plants. They are deposited at Herbarium Bogoriense (BO), the

herbarium A herbarium (plural: herbaria) is a collection of preserved plant specimens and associated data used for scientific study. The specimens may be whole plants or plant parts; these will usually be in dried form mounted on a sheet of paper (called ...

of the

Bogor Botanical Gardens The Bogor Botanical Gardens ( id, Kebun Raya Bogor) is a botanical garden located in Bogor, Indonesia, 60 km south of central Jakarta. It is currently operated by Indonesian Institute of Sciences (Indonesian: ''Lembaga Ilmu Pengetahuan Indo ...

Grouping with ''N. vieillardii''

The first author to describe specimens of ''N. lamii'' was B. H. Danser in his seminal 1928 monograph, "

The Nepenthaceae of the Netherlands Indies "The Nepenthaceae of the Netherlands Indies" is a seminal monograph by B. H. Danser on the tropical pitcher plants of the Dutch East Indies and surrounding regions. It was originally published in the ''Bulletin du Jardin Botanique de Buitenzorg'' ...

". Danser interpreted specimens of ''N. lamii'' as representing an outlying population of '' N. vieillardii'' (previously recorded only from

New Caledonia ) , anthem = "" , image_map = New Caledonia on the globe (small islands magnified) (Polynesia centered).svg , map_alt = Location of New Caledonia , map_caption = Location of New Caledonia , mapsize = 290px , subdivision_type = Sovereign st ...

) and used two specimens of ''N. lamii'' (''Pulle 843 bis'' and ''Lam 1654'') to illustrate the latter species (figure 26 in his monograph). In addition to the specimens mentioned above, Danser also listed ''Docters van Leeuwen 10834'' as New Guinean material of what he identified as ''N. vieillardii''. Danser explained his interpretation of ''N. vieillardii'' as follows:

''N. Vieillardii'' has only been recorded from New Caledonia and the Isle of Pines up to the present, but the materials collected by the latter expeditions have shown, that at least in the western part of New Guinea it is not rare, in the latter country it varies more than in New Caledonia but it seemed impossible to me to distinguish separate species. Most alike the plants of New Caledonia are the number Pulle 834 and those of Docters van Leeuwen ; they only differ from the New Caledonia plants by the slightly developed indumentum, and the lid being more elliptical and bearing many glands on its lower surface. The plants of the Doormantop (Lam 1637 & 1654) have strongly abbreviate stems and are obviously an alpine form only ; they have nearly round lids like the plants of New Caledonia. The plants from the Ericatop are small and delicate in all parts ; they agree with the numbers first mentioned, by the elliptical and very glandular lids ; when the other New Guinea forms were not known, I would not have hesitated to distinguish those from the Ericatop specifically from those from New Caledonia. ..
The habitat of this species in New Guinea are as well the virgin forest and the scrub as the treeless mountain tops. On the Doormantop, where Lam collected his plants, one would not expect ''Nepenthes'', the winds being there very strong and the temperature often very low, according to Lam often below the freezing point before sunrise. This hardiness gives ''N. Vieillardii'' a fair chance of dispersion.

For most of the remainder of the 20th century, authors followed Danser in treating ''N. lamii'' as a geographically isolated population of ''N. vieillardii''. A prominent example of this is

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 ...

's 1991 monograph, " An account of ''Nepenthes'' in New Guinea", where an illustration of ''N. lamii'' (figure 27) is labelled as showing ''N. vieillardii''. In 1994, A. Wistuba, H. Rischer, B. Baumgartl, and B. Kistler observed wild plants of ''N. lamii'' (which they called '' N. vieillardii'') during a trip to Doorman Top in search of the enigmatic '' N. paniculata''.Wistuba, A. 1994
Re: ''Nepenthes''-discussion
Carnivorous Plant Mailing List, September 15, 1994. The group were unsuccessful in rediscovering the latter species, but found '' N. maxima'' on the mountain.

Recognition as a distinct species

''Nepenthes lamii'' was formally described by

and

Martin Cheek Martin Roy Cheek (born 1960) is a botanist and taxonomist at the Royal Botanic Gardens, Kew.A skeletal revision of ''Nepenthes'' (Nepenthaceae)". The authors distinguished it from ''N. vieillardii'' on the basis of a number of features of pitcher and indumentum morphology. They selected the

holotype A holotype is a single physical example (or illustration) of an organism, known to have been used when the species (or lower-ranked taxon) was formally described. It is either the single such physical example (or illustration) or one of several ...

and isotype specimens from the ''Lam 1637'' series; both are deposited at Herbarium Bogoriense. 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 ...

is notable for exhibiting densely glandular

tendril In botany, a tendril is a specialized stem, leaf or petiole with a threadlike shape used by climbing plants for support and attachment, as well as cellular invasion by parasitic plants such as ''Cuscuta''. There are many plants that have tendr ...

s. The next detailed treatments of ''N. lamii'' appeared in Cheek and Jebb's updated monograph of 2001, " Nepenthaceae", and Stewart McPherson's 2009 work, ''

'', which included colour habitat photographs of the species.

Description

''Nepenthes lamii'' reaches a maximum height of around 4 m, although plants growing towards the upper altitudinal limit of this species are greatly stunted

shrub A shrub (often also called a bush) is a small-to-medium-sized perennial woody plant. Unlike herbaceous plants, shrubs have persistent woody stems above the ground. Shrubs can be either deciduous or evergreen. They are distinguished from trees ...

lets. The

stem Stem or STEM may refer to: Plant structures * Plant stem, a plant's aboveground axis, made of vascular tissue, off which leaves and flowers hang * Stipe (botany), a stalk to support some other structure * Stipe (mycology), the stem of a mushro ...

, which may be branched, is rounded or angular in cross section and has internodes up to 8 cm long. Leaves are thinly

coriaceous This glossary of botanical terms is a list of definitions of terms and concepts relevant to botany and plants in general. Terms of plant morphology are included here as well as at the more specific Glossary of plant morphology and Glossary o ...

and

sessile Sessility, or sessile, may refer to: * Sessility (motility), organisms which are not able to move about * Sessility (botany), flowers or leaves that grow directly from the stem or peduncle of a plant * Sessility (medicine), tumors and polyps that ...

. The

lamina Lamina may refer to: Science and technology * Planar lamina, a two-dimensional planar closed surface with mass and density, in mathematics * Laminar flow, (or streamline flow) occurs when a fluid flows in parallel layers, with no disruption betwee ...

(leaf blade) is most commonly linear, but may also be

lanceolate The following is a list of terms which are used to describe leaf morphology in the description and taxonomy of plants. Leaves may be simple (a single leaf blade or lamina) or compound (with several leaflets). The edge of the leaf may be regular o ...

. It reaches 22 cm in length by 5 cm in width. It has an acute to

acuminate The following is a list of terms which are used to describe leaf morphology in the description and taxonomy of plants. Leaves may be simple (a single leaf blade or lamina) or compound (with several leaflets). The edge of the leaf may be regular o ...

apex and an obtuse base that may be

decurrent ''Decurrent'' (sometimes decurring) is a term used in botany and mycology to describe plant or fungal parts that extend downward. In botany, the term is most often applied to leaf blades that partly wrap or have wings around the stem or petio ...

for more than 2 cm down the stem, although it is variable in this respect. Three to four longitudinal veins are typically present on either side of the

midrib This glossary of botanical terms is a list of definitions of terms and concepts relevant to botany and plants in general. Terms of plant morphology are included here as well as at the more specific Glossary of plant morphology and Glossary o ...

, restricted to the distal quarter to third of the lamina, although they may number as many as 5 or as few as 0.

Pinnate Pinnation (also called pennation) is the arrangement of feather-like or multi-divided features arising from both sides of a common axis. Pinnation occurs in biological morphology, in crystals, such as some forms of ice or metal crystals, and in ...

veins, which may or may not be distinct, emerge obliquely from the midrib to form an irregular network in the distal half of the lamina.

Tendril In botany, a tendril is a specialized stem, leaf or petiole with a threadlike shape used by climbing plants for support and attachment, as well as cellular invasion by parasitic plants such as ''Cuscuta''. There are many plants that have tendr ...

s may be densely glandular in some specimens. Laminae are typically green throughout, but may be tinged with purple, especially in stunted plants from higher elevations. The midrib and tendrils are often yellow and turn orange to red upon exposure to strong sunlight. Rosette and lower pitchers are typically

ovate Ovate may refer to: *Ovate (egg-shaped) leaves, tepals, or other botanical parts *Ovate, a type of prehistoric stone hand axe *Ovates, one of three ranks of membership in the Welsh Gorsedd *Vates In modern English, the nouns vates () and ovat ...

in the basal half of the pitcher cup, becoming cylindrical and sometimes slightly

infundibular An infundibulum (Latin for ''funnel''; plural, ''infundibula'') is a funnel-shaped cavity or organ. Anatomy * Brain: the pituitary stalk, also known as the ''infundibulum'' and ''infundibular stalk'', is the connection between the hypothalamus and ...

above. A conspicuous hip often delimits these two parts of the trap. Terrestrial pitchers may also be entirely ovate. They are relatively small, rarely exceeding 7 cm in height by 3 cm in width, although they occasionally reach 12 cm by 4 cm. A pair of wings (≤8 mm wide) runs down the

ventral Standard anatomical terms of location are used to unambiguously describe the anatomy of animals, including humans. The terms, typically derived from Latin or Greek language, Greek roots, describe something in its standard anatomical position. Th ...

surface of the pitcher cup. The wings bear fringe elements up to 5 mm long. The pitcher mouth is suborbicular and has an oblique insertion. The

peristome Peristome (from the Greek ''peri'', meaning 'around' or 'about', and ''stoma'', 'mouth') is an anatomical feature that surrounds an opening to an organ or structure. Some plants, fungi, and shelled gastropods have peristomes. In mosses In mosses, ...

is cylindrical and becomes flattened and broader towards the sides and rear, measuring up to 7 mm in width. It bears ribs up to 0.5 mm high and spaced up to 0.8 mm apart. On the inner margin of the peristome, the ribs terminate in teeth up 1 mm long. The pitcher lid or operculum is

orbicular Orbicular is an adjective meaning "circular" Orbicular may also refer to: * Orbicular leaf, a plant leaf shape * Orbicularis oculi muscle, a muscle around the eye * Orbicularis oris muscle, a muscle around the mouth * Orbicular batfish, a specie ...

to elliptic with a rounded apex and a rounded to

cordate Cordate is an adjective meaning 'heart-shaped' and is most typically used for: * Cordate (leaf shape), in plants * Cordate axe, a prehistoric stone tool See also * Chordate A chordate () is an animal of the phylum Chordata (). All chordat ...

base. It bears no appendages, although the midline may be thickened into a 1 mm high ridge. It reaches 4.5 cm in length by 3.8 cm in width. The lower surface of the lid bears numerous

nectar Nectar is a sugar-rich liquid produced by plants in glands called nectaries or nectarines, either within the flowers with which it attracts pollinating animals, or by extrafloral nectaries, which provide a nutrient source to animal mutualists ...

glands. Most are orbicular and measure 0.1–0.2 mm in diameter; this type occurs at a density of 1500–2000/cm². Larger, longitudinally elliptic glands of 0.4 mm, and occasionally even up to 3 mm, are concentrated around the midline. An unbranched

spur A spur is a metal tool designed to be worn in pairs on the heels of riding boots for the purpose of directing a horse or other animal to move forward or laterally while riding. It is usually used to refine the riding aids (commands) and to back ...

measuring up to 5 mm in length is inserted near the base of the lid. It may or may not be flattened. Lower pitchers are typically reddish on their outer surface, often having speckles of a darker red colour. The inner surface varies from white to light orange. The peristome may be orange, through red, to purple. The lid is often yellowish on its lower surface and the same colour as the pitcher cup on its upper surface. Stunted plants from higher altitudes typically produce dark terrestrial pitchers. Upper pitchers are infundibular and somewhat inflated in the basal quarter to third of the pitcher cup, becoming cylindrical or slightly infundibular above. A conspicuous hip often delimits these two parts of the trap. Rarely they may be wholly obovoid. Aerial traps are considerably larger than their terrestrial counterparts, growing to 18 cm in height by 5 cm in width. Ribs are present in place of wings. The peristome is cylindrical and up to 5 mm wide, being either uniformly broad throughout or slightly expanded at the sides and rear. Other parts are similar to those found in terrestrial traps. Aerial pitchers are usually yellowish throughout, occasionally with tinges of orange or red in older specimens. The ventral ridges are sometimes completely red. The inner surface may be white to cream coloured. The peristome ranges in colour from yellow to red, whereas the lid is most commonly yellow throughout. ''Nepenthes lamii'' has a

racemose A raceme ( or ) or racemoid is an unbranched, indeterminate type of inflorescence bearing flowers having short floral stalks along the shoots that bear the flowers. The oldest flowers grow close to the base and new flowers are produced as the s ...

inflorescence An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed o ...

up to 14 cm long. The peduncle constitutes up to 7 cm of this length and has a basal width of around 2 mm. Flowers are borne solitarily on

pedicels In botany, a pedicel is a stem that attaches a single flower to the inflorescence. Such inflorescences are described as ''pedicellate''. Description Pedicel refers to a structure connecting a single flower to its inflorescence. In the absenc ...

(≤10 mm long) that lack

bract In botany, a bract is a modified or specialized leaf, especially one associated with a reproductive structure such as a flower, inflorescence axis or cone scale. Bracts are usually different from foliage leaves. They may be smaller, larger, or of ...

Tepal A tepal is one of the outer parts of a flower (collectively the perianth). The term is used when these parts cannot easily be classified as either sepals or petals. This may be because the parts of the perianth are undifferentiated (i.e. of very ...

s are elliptic and measure up to 3 mm in length by 3.3 mm in width. The androphore is up to 2.5 mm long and bears an

anther The stamen (plural ''stamina'' or ''stamens'') is the pollen-producing reproductive organ of a flower. Collectively the stamens form the androecium., p. 10 Morphology and terminology A stamen typically consists of a stalk called the filam ...

head measuring up to 1.25 mm by 1.5 mm. Most parts of the plant lack a persistent

indumentum In biology, an indumentum (Latin, literally: "garment") is a covering of trichomes (fine "hairs") on a plant Davis, Peter Hadland and Heywood, Vernon Hilton (1963) ''Principles of angiosperm taxonomy'' Van Nostrandpage, Princeton, New Jersey, pa ...

, being

glabrous Glabrousness (from the Latin ''glaber'' meaning "bald", "hairless", "shaved", "smooth") is the technical term for a lack of hair, down, setae, trichomes or other such covering. A glabrous surface may be a natural characteristic of all or part of ...

. A very sparse covering of pale brown, woolly- scurfy hairs measuring 0.2–0.4 mm is present on developing parts. The only mature parts that retain an indumentum are the inflorescence and tendrils, which bear an inconspicuously puberulent covering of simple, black hairs of around 0.3 mm.

Ecology

''Nepenthes lamii'' is

to the higher peaks of central Papua province in West Papua,

, including Doorman Top (also known simply as Mount Doorman) and Mount Erica of the Hellwig Mountains. Sizable populations of this species have been found near

Tembagapura Tembagapura is a district in Mimika Regency, part of the Indonesian province of Central Papua, centered on an urban village built to support the Grasberg Mine. The district covers 2,586.86 km2, and it had a population of 16,917 at the 2010 Census ...

, a

mining town A mining community, also known as a mining town or a mining camp, is a community that houses miners. Mining communities are usually created around a mine or a quarry. Historic mining communities Australia * Ballarat, Victoria * Bendigo, ...

situated at around 1900 m in the

Sudirman Range The Sudirman Range, also known as the Snow Mountains,"Sudirman Mountains (Snow Mountains)". Papua Insects Foundation. Accessed 5 August 2021/ref> Dugunduguoo, or Nassau Range is a mountain range in Central Papua province, Indonesia. It is named a ...

. ''Nepenthes lamii'' has an altitudinal distribution of 1460–3520 m

. The uppermost altitudinal limit of this species represents the highest known elevation of any ''Nepenthes'', although ''Nepenthes'' sp. Papua has been found at similar altitudes of around 3500 m. The species is highly variable in terms of growth habit and stature. At lower elevations, it is a scrambling climber that grows both terrestrially and

epiphytically An epiphyte is an organism that grows on the surface of a plant and derives its moisture and nutrients from the air, rain, water (in marine environments) or from debris accumulating around it. The plants on which epiphytes grow are called phoroph ...

in a variety of habitats, including

mossy forest A cloud forest, also called a water forest, primas forest, or tropical montane cloud forest (TMCF), is a generally tropical or subtropical, evergreen, montane, moist forest characterized by a persistent, frequent or seasonal low-level cloud c ...

, recovering vegetation, open scrub, and stunted lower and upper

montane forest Montane ecosystems are found on the slopes of mountains. The alpine climate in these regions strongly affects the ecosystem because temperatures fall as elevation increases, causing the ecosystem to stratify. This stratification is a crucial f ...

. It is exposed to strong or direct sunlight at these sites. Plants from higher altitudes become progressively more stunted and grow terrestrially among montane scrub and

grass Poaceae () or Gramineae () is a large and nearly ubiquitous family of monocotyledonous flowering plants commonly known as grasses. It includes the cereal grasses, bamboos and the grasses of natural grassland and species cultivated in lawns an ...

es, montane

heath A heath () is a shrubland habitat found mainly on free-draining infertile, acidic soils and characterised by open, low-growing woody vegetation. Moorland is generally related to high-ground heaths with—especially in Great Britain—a cooler ...

, or in open sites with little other vegetation. These dwarf ultrahighland specimens experience some of the lowest temperatures of any ''Nepenthes''; nighttime temperatures as low as 4 °C are not uncommon above 3200 m and on the upper slopes of Doorman Top they may fall below freezing. Plants growing in exposed sites on the mountain top also experience very strong winds. Although '' N. maxima'' has also been recorded from Doorman Top, no

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 ...

s involving ''N. lamii'' have been found to date. The size and distribution of natural populations of ''N. lamii'' are incompletely known, making it difficult to assess the species's

conservation status The conservation status of a group of organisms (for instance, a species) indicates whether the group still exists and how likely the group is to become extinct in the near future. Many factors are taken into account when assessing conservation ...

. However, the populations found near

appear to be secure for the time being due to the tight controls on access and development present in the area. The other known populations of ''N. lamii'' are all located in remote parts of Papua and many have not seen human contact in decades. Stewart McPherson writes that ''N. lamii'' "may be anticipated from many of the high peaks of central Papua, and the species may accordingly have a wider distribution than is currently appreciated".

Related species

''Nepenthes lamii'' is quite morphologically distinct from all other ''Nepenthes'' of

and is thus easily identified in the wild. Its pitchers are somewhat reminiscent of those of '' N. murudensis'' and the giant form of '' N. tentaculata'', but both of these

taxa In biology, a taxon (back-formation from ''taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular nam ...

are restricted to

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 ...

. Furthermore, although similar, the traps of ''N. lamii'' differ in that they have a round, as opposed to angular, pitcher mouth, and mature specimens never have filaments on the upper surface of the lid. In addition, the lower pitchers are ovate to ovate-cylindrical in ''N. lamii'' and possess a wider peristome. Although long confused with '' N. vieillardii'', ''N. lamii'' can be distinguished from that species on the basis of several stable differences. ''Nepenthes lamii'' almost completely lacks an

on mature parts, whereas ''N. vieillardii'' bears a sparse to dense covering of white hairs measuring around 1 mm in length. In addition, the

ribs of ''N. lamii'' are usually more widely spaced at 0.3–0.4 mm apart versus 0.2–0.3 mm in ''N. vieillardii''. The density of nectar glands on the underside of the lid is also much higher in ''N. lamii'' (1500–2000 glands/cm² versus 75–100 glands/cm²).Kurata, K., T. Jaffré & H. Setoguchi 2004. Variation of pitcher morphology within ''Nepenthes vieillardii'' Hook. f. (Nepenthaceae) in New Caledonia. ''Acta phytotaxonomica et geobotanica'' 55(3): 181–197
Abstract
/ref>

Notes

:a.''Docters van Leeuwen 10834'' was collected by Willem Marius Docters van Leeuwen in October 1926 from the

(also known as the Nassau Range) at an elevation of 2600 m. It includes male floral material and is held at Herbarium Bogoriense (BO).

References

External links

Photographs of ''N. lamii''
{{Taxonbar, from=Q5237767 lamii Carnivorous plants of Asia Endemic flora of Western New Guinea Plants described in 1997 Taxa named by Matthew Jebb Taxa named by Martin Cheek