Nepenthes eymae

Таксономия

Семья:	Nepenthaceae
Род:	Nepenthes
Заказ:	Caryophyllales

Обзор

Nepenthes eymae is a highland tropical pitcher plant endemic to Sulawesi, Indonesia, where it grows at about 1,000 to 2,000 m. Its upper pitchers are shaped like wine glasses and hold an unusually thick, sticky fluid.

Nepenthes eymae is a climbing plant growing up to 8 m tall. Its leaves are oblong, up to 35 cm long and 12 cm wide, on leaf stalks usually up to 10 cm long.

Lower pitchers are egg-shaped to cylindrical, the largest traps the plant makes, up to 24 cm tall and 16 cm wide, with a pair of fringed wings and a glossy peristome that widens to over 5 cm at the back. Upper pitchers are smaller, up to 15 cm (6 in) tall: narrowly funnel-shaped in the lower part and then abruptly widening, which gives them their wine glass outline. Their lid is very narrow and spear-shaped, up to 8 cm long, often curled upwards with crinkled edges. Lower pitchers may be white, green, yellow, brown or red, often speckled red, with a dark peristome; upper pitchers are mainly yellow.

It belongs to the loosely defined N. maxima complex and is very closely related to N. maxima, from which it differs in its wingless, abruptly flared upper pitchers, its egg-shaped lower pitchers and its narrow lid. Most authors treat it as a distinct species, though some doubt this.

Географическая информация

Родной регион: Central and West Sulawesi, Indonesia (endemic)

Климатические зоны: Tropical highland (1,000-2,000 m)

Nepenthes eymae grows in the mountains of Central Sulawesi, including the East Peninsula, and West Sulawesi, at 1,000 to at least 2,000 m and typically above 1,400 m. It usually grows on the ground, but may be epiphytic higher up. It has been recorded from heath forest, river banks, cliff faces, landslides and recovering logged forest, and towards the top of its range among the ridge and summit vegetation of upper montane forest. It grows in both shaded and exposed sites, but best in exposed ones. It occurs in Morowali Nature Reserve.

Физические характеристики

Размер зрелости: Climbs to 8 m; lower pitchers up to 24 cm, upper up to 15 cm (6 in)

Темпы роста: Moderate

Тип ловушки: Pitfall Trap

Nepenthes eymae produces an extremely thick, mucilaginous fluid that coats the whole inside of the pitcher in a thin film. This is most marked in the upper pitchers, which must cope with the wind. They appear to work at least partly like flypaper: small flying insects stick to the inner walls above the fluid and gradually slide down to be digested. Peter D'Amato observed in 1993 that, in cultivation, the lower pitchers caught ants more successfully than the upper ones. A 2011 study classed the fluid as viscoelastic, like that of most highland species tested.

Руководство по уходу

Требования к освещению

In the wild it grows best in exposed sites. Bright, diffuse light is excellent, and artificial lighting can be adequate if it is bright enough.

Bright light year round; no seasonal rest ежедневно

Потребности в воде

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

Метод: 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.

Частота: Often enough to keep the mix evenly moist

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

Земля

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)

Температура

Лето: Days 77-86°F (25-30°C), nights about 18°F cooler

Зима: Same as summer; tropical, grows all year

Кормление

Частота: 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.

Распространение

Методы: 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.

Сложность: Moderate

Советы для начинающих

Treat it as a highland Nepenthes: bright light, high humidity, mild days and clearly cooler nights.

Поиск неисправностей

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.

Советы по выращиванию

Humidity makes the pitchers Troubleshooting

If tendrils stop forming pitchers, raise the humidity towards 90%.

Sticky fluid is normal General

Its pitcher fluid is naturally very thick and coats the inner wall; this is how the upper pitchers catch small flying insects.

Cool nights Advanced

A highland plant from about 1,000-2,000 m. Days of 77-86°F (25-30°C) and nights about 18°F (10°C) cooler suit it.

Интересные факты

It is named after the Dutch botanist Pierre Joseph Eyma, who discovered it in 1938.
Its upper pitchers are often described as wine glass shaped.
The hollow pitcher tube can continue a few centimetres up the tendril.
Two rival names were published four days apart in 1984; N. eymae has priority over N. infundibuliformis.
Most plants grown under the name N. eymae do not show the abruptly flared upper pitchers associated with it.
The IUCN Red List assessed it as Least Concern in 2018 (Clarke, assessment T39660A143960044).

История

Pierre Joseph Eyma discovered the species in central Sulawesi in 1938. Shigeo Kurata formally described it on 6 February 1984 in the Journal of the Insectivorous Plant Society, from a holotype collected on the north spur of Mount Lumut at 1,850 m in November 1983. He spelled it eymai, later corrected to eymae. Four days later John Turnbull and Anne Middleton published the same plant as N. infundibuliformis, which is now a synonym. The same two sets of authors also published competing names for N. glabrata and N. hamata. Neither set of type specimens has been located in a public herbarium.

Источники

Часто задаваемые вопросы

In the wild it grows best in exposed sites. Bright, diffuse light is excellent, and artificial lighting can be adequate if it is bright enough. Ориентируйтесь примерно на Bright light year round; no seasonal rest света в день.

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. pH почвы: Acidic (sphagnum based).

Покой ему не нужен. Зимние температуры: 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. Как часто: Optional; at most once or twice a month into the pitchers.

Central and West Sulawesi, Indonesia (endemic). Nepenthes eymae grows in the mountains of Central Sulawesi, including the East Peninsula, and West Sulawesi, at 1,000 to at least 2,000 m and typically above 1,400 m. It usually grows on the ground, but may be epiphytic higher up. It has been recorded from heath forest, river banks, cliff faces, landslides and recovering logged forest, and towards the top of its range among the ridge and summit vegetation of upper montane forest.

Красный список IUCN (МСОП) оценивает его как Least Concern.

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.

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.

Carnivoras продает Nepenthes eymae в Мексике. Посмотрите растения, доступные на этой странице.