Nepenthes mantalingajanensis

Nepenthes mantalingajanensis, soil pot

Nepenthes mantalingajanensis is a Kannenpflanzenart from the family of pitcher plants plants ( Nepenthaceae ). The native in the Philippines species was discovered in 1992 by botanists GCG Argent and EM Romero and first described in 2007.

Description

Habit

Nepenthes mantalingajanensis is a mostly growing as a basal rosette, and 20 to 40 centimeters high, rarely up to 300 centimeters tall climbing plant.

The shoot axis is approximately 1 inch thick and cylindrical. The leathery leaves are formed from a 15 to 25 cm long and 5-6 cm wide, broadly lanceolate, apparent leaf blade, but in the strict sense is only a re-formed leaf base. This is divided by a center rib, from her neck to her run in parallel when the two side fins.

The growing out of the top of the leaf tendril ground is 25 to 40 inches long and about 3 millimeters thick, it goes to its end into the bottom of the pot, until it is then the actual leaf blade.

Cans

The yellow-green to pale red, roundish to reverse- egg-shaped, leathery cans are 15 to 20 centimeters, in exceptional cases up to 25 inches high and about 8 inches wide, its inside is completely glandular.

They occasionally have two fringed wings from peristome ( the edge of the can opening) down run over a third of the can height and then continue as narrow ribs to Can approach. If the wing bar is missing, it is reduced to the rib.

The horizontally oriented Can opening is round. The finely ribbed, 2 to 2.5 inches wide peristome is cylindrical, the ribs are in 1 to 2 millimeters distance of each other, the teeth of the inner edge are 2-4 millimeters long, however, reach the neck ( the connection between pot and lid ) lengths to 10 millimeters.

The cover is about to heart-shaped with a diameter from 6 to 7 centimeters and surface (except near the central rib ) filled with fine glands. From its midrib go per page from page three ribs.

Flowers, fruits and seeds

Like all pitcher plants Nepenthes mantalingajanensis is dioecious, that is, a plant is either male or female, but never hermaphrodite.

The male inflorescences are grapes, the flower stalk is 30 to 35 inches long and 5 to 6 millimeters thick. The flower stalks bear 8 to 10 millimeters long single flowers, often with 1 mm long bracts at the base. The perianth consists of four oval bloom cladding, which reach a length of about 3 mm and a width of about 2 millimeters. The female inflorescences are grapes, the flower stalk is 30 to 35 inches long and 5 to 6 millimeters thick.

The pedicels of the lower flowers are 12 mm long, the upper 6 mm. The fruit capsules are 12 mm long and 5 mm thick, the seeds 3 to 4 millimeters long. Freshly bloomed flowers are yellow - green and later completely deep red.

Distribution and ecology

Nepenthes mantalingajanensis is known exclusively from Mantalingajan mountain in Palawan in the Philippines from altitudes around 2000 m.

The plants grow there mostly in open vegetation, which grows to a height of not more than 1 meter, associated with grasses and rhododendron species.

Botanical history and systematics

Was first discovered in 1992 by the way George Argent and EM Romero, only in 2007 by Joachim mink and Andreas Wistuba it was first described, after a long time as " Nepenthes sp. Palawan was one out "; the epithet refers to the home of the Art

Its geographical distribution shall be in accordance Nepenthes mantalingajanensis as a systematic link between the Philippine species and those of Borneo. The closest relatives of type Nepenthes rajah in Borneo Nepenthes mira and the Philippines.