White-collared Pitcher Plant

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가족:	Nepenthaceae
속:	Nepenthes
주문하다:	Caryophyllales

개요

Nepenthes albomarginata is a tropical pitcher plant of Borneo, Peninsular Malaysia and Sumatra, named for the band of white hairs just below the rim of its pitchers. That band is edible bait for termites, making it the only carnivorous plant known to specialise in a single kind of prey.

Nepenthes albomarginata is a climbing plant with a stem up to about 4 m long, though Cheek and Jebb record plants to 10 m. Its narrow, leathery leaves have no leaf stalk at all. Young stems and leaves carry a dense, long, coppery red covering of hairs.

Lower pitchers are bulbous in the lower third and cylindrical above, only up to about 15 cm (6 in) tall and 4 cm wide, with a pair of fringed wings. The peristome is narrow, up to 2 mm wide. Directly below it runs a dense band of short white hairs, usually bright white but less often brown, which sets the species apart from all others. Upper pitchers are cylindrical to funnel-shaped, with ribs in place of wings. The common form is green, while rarer forms have red or blackish pitchers; a red form was named var. rubra in 1908.

It is sometimes confused with N. gracilis, which lacks the white band. Natural hybrids are recorded with many species, among them N. × cincta (with N. northiana) and N. × ferrugineomarginata (with N. reinwardtiana).

지리 정보

원주민 지역: Borneo, Peninsular Malaysia and Sumatra, including Penang and Nias

기후대: Tropical, sea level to about 1,200 m

Its typical habitat is kerangas (heath) forest, but it also grows in submontane forest and on exposed ridge-tops and the summits of low peaks, on peat, limestone or sandstone. It ranges from sea level to about 1,100 to 1,200 m. It is absent from Singapore.

물리적 특성

성숙한 크기: Climber to about 4 m; pitchers up to about 15 cm (6 in) tall

성장률: Moderate

트랩 유형: Pitfall Trap

Nepenthes albomarginata specialises in termites, unlike most Nepenthes, which take whatever they catch. Marlis Merbach and colleagues placed pitchers near foraging columns of the termite Hospitalitermes bicolor. The termites grazed on the living white hairs below the peristome, and many workers and soldiers fell in and could not climb out: up to 22 a minute in Merbach's counts. After about an hour the hairs were gone, the pitcher was no longer attractive, and it was full of termites. Merbach found no sign of scent attracting them from a distance; contacts seemed to happen by chance. This makes it the only plant known to offer its own tissue as bait, and pitchers that have caught termites typically lack their white band.

케어 가이드

조명 요구 사항

Bright, diffuse light is excellent, and artificial lighting can be adequate if it is bright enough.

Bright light year round; no seasonal rest 일일

물 요구 사항

유형: Purified water (distilled, reverse osmosis or rain) is safest

방법: Water from above and let the excess drain. Do not keep the pot standing in a tray of water: plants sitting in trays often have dwarfed root systems.

빈도: Often enough to keep the mix evenly moist

습기: Very high: at least 60%, ideally near 90%

토양

A 50:50 mix of long-fiber sphagnum moss and perlite is a good general starting point. After about a year, knock the plant out of its pot and look at the roots; if they are not exploring the mix, try a different one.

pH: Acidic (sphagnum based)

온도

여름: Between Rice's lowland and highland ranges

겨울: Same as summer; tropical, grows all year

급송

빈도: Optional; at most once or twice a month into the pitchers

Plants that catch insects need no feeding. Growers who want to fertilize can pour a small amount of orchid or epiphyte fertilizer into the pitchers once or twice a month, starting small and watching the effect. Fertilizing is optional.

번식

행동 양식: Stem cuttings: cut green stems into segments with about two leaves each, trim each leaf to about a third of its size, set the lower half in the mix and keep the cutting at very high humidity. Roots usually form within about a month. Seed needs a male and a female plant flowering at the same time; it is short-lived and should be sown at once.

어려움: Moderate

초보자 팁

Keep it warm, humid and brightly lit, water from above, and do not rub the white band under the rim.

문제 해결

Pitchers without the white band: the hairs are lost when termites graze them, so this is normal after a catch. Leaf edges burning and tendrils failing to form pitchers: humidity too low. A small plant with a weak root system: the pot has been standing in water.

성장 팁

Humidity makes the pitchers Troubleshooting

Burned leaf edges and tendrils without pitchers usually mean the air is too dry.

Between lowland and highland Advanced

It grows wild from sea level to about 1,200 m, so it sits between Rice's lowland and highland temperature ranges.

The white band is bait General

The white hairs under the rim are living tissue that termites eat. A pitcher that has lost them has probably made a catch.

흥미로운 사실

Albomarginata means 'white-margined', from Latin albus (white) and marginatus (bordered).
Its prey specialisation on termites is unique among carnivorous plants.
A single pitcher can fill with termites overnight, losing its white band in the process.
Its leaves have no stalk at all, a distinctive feature.
Green is the common form; red and blackish forms are rarer.
The IUCN Red List assessed it as Least Concern in 2018 (Clarke, assessment T39639A143958253).

역사

Thomas Lobb first collected Nepenthes albomarginata in 1848, and John Lindley described it the following year in The Gardeners' Chronicle; the lectotype is the illustration published there. It was introduced into cultivation in the United Kingdom in 1856. Varieties were later named, including var. rubra (Macfarlane, 1908) for red plants. In the 1996 book Pitcher-Plants of Borneo it was given the English name white-collared pitcher-plant. Charles Clarke drew attention in 1997 to the possibility that it specialises in termites, which Merbach's field experiments demonstrated.

출처

자주 묻는 질문

Bright, diffuse light is excellent, and artificial lighting can be adequate if it is bright enough. 하루에 약 Bright light year round; no seasonal rest의 빛을 목표로 하세요.

Purified water (distilled, reverse osmosis or rain) is safest. Water from above and let the excess drain. Do not keep the pot standing in a tray of water: plants sitting in trays often have dwarfed root systems.

A 50:50 mix of long-fiber sphagnum moss and perlite is a good general starting point. After about a year, knock the plant out of its pot and look at the roots; if they are not exploring the mix, try a different one. 토양 pH: Acidic (sphagnum based).

휴면이 필요하지 않습니다. 겨울 기온: Same as summer; tropical, grows all year.

Plants that catch insects need no feeding. Growers who want to fertilize can pour a small amount of orchid or epiphyte fertilizer into the pitchers once or twice a month, starting small and watching the effect. Fertilizing is optional. 빈도: Optional; at most once or twice a month into the pitchers.

Borneo, Peninsular Malaysia and Sumatra, including Penang and Nias. Its typical habitat is kerangas (heath) forest, but it also grows in submontane forest and on exposed ridge-tops and the summits of low peaks, on peat, limestone or sandstone.

IUCN 적색목록에서는 Least Concern(으)로 평가합니다.

Stem cuttings: cut green stems into segments with about two leaves each, trim each leaf to about a third of its size, set the lower half in the mix and keep the cutting at very high humidity. Roots usually form within about a month. Seed needs a male and a female plant flowering at the same time; it is short-lived and should be sown at once.

Pitchers without the white band: the hairs are lost when termites graze them, so this is normal after a catch. Leaf edges burning and tendrils failing to form pitchers: humidity too low. A small plant with a weak root system: the pot has been standing in water.

Carnivoras는 멕시코에서 White-collared Pitcher Plant를 판매합니다. 이 페이지에서 판매 중인 식물을 확인하세요.

구매 가능

Nepenthes albomarginata 'Red'

$450MXN

≈ US$24.39

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