Nepenthes madagascariensis
Nepenthes madagascariensis
Nepenthes madagascariensis is a species in the family of pitcher plants plants ( Nepenthaceae ). This carnivorous plant is native to Madagascar.
Description
Nepenthes madagascariensis grows as a shrub or bush. Only occasionally climbing, the plants are rarely higher than 2 meters. Young parts of the plants are always densely covered with red, multicellular, about 1 millimeter long hair. The internodes are extremely short at the basal rosette and short shoots, but extended down to 3, rarely to 4 centimeters. The total length of the section of leaf blade, tendril and pitcher is 4-78 centimeters.
The leaves are on a stalk at the base of the semi- comprehensive petiole, which is 2 to 5 inches long and 1 (rarely 0.8) to 1.5 inches thick and is about 1 to 2, rarely winged to 3 centimeters. The leathery, 3 (rarely from 1) to 28 centimeters long and 2-8 centimeters wide leaf blade is oval or lanceolate, upper side glabrous, but with each other occupied scattered with hair. Spreading lances have a length - to-breadth ratio of 3 to 5:1, often oval one of up to 2:1. The leaf base is tapered rarely wedge-shaped. To each side of the underside of the leaf blade clearly protruding midrib there are four to six, rarely up to seven side ribs. The sporadically occupied with hair tendril is 10-38 inches long and 1 to 3 millimeters thick.
Nepenthes madagascariensis forms less ground pitchers, but mostly air cans that are quite slim and funnel-shaped and about 26 cm can be large. Typical of this type is a large Peristom and an almost circular lid. The staining is predominantly a shining quince - yellow, but red pitchers were already described.
Nepenthes madagascariensis are dioecious getrenntgeschlechtig ( dioecious ), so on a copy are either male or only female flowers. Like most of their relatives too, so Nepenthes madagascariensis forms Rispige inflorescences. The petals are reddish in color usually, but may turn dark brown in strong sunlight.
Ecology
94.3 % of the prey of Nepenthes madagascariensis are ants ( 80.2 %), Fly (9.7%) and beetles ( 4.4%). The prey composition differs in the dimorphic soil and air cans. In the lower pitchers there is a significantly higher proportion of ants in the top a higher number of flying insects. The differences may be partly justified seasonally.
Distribution and threat
Nepenthes madagascariensis is exclusively native to Madagascar and is a Tieflandart. It is distributed along the east coast, north to the Masoala Peninsula, most often it is the south to Tolagnaro. She finds herself on the relatively dry edges of swamps, but also on sandy soils open, bright locations, where it sometimes forms almost exclusive stocks.
From the IUCN, this species is listed as endangered ( Vulnerable ).
Botanical history
The first tangible mention of Nepenthes madagascariensis dates back to 1661, when the Frenchman Etienne de Flacourt Madagascar traveled there and came to the called " Anramitaco " plant.
Was first described in 1798 by Jean Officially the way Louis Marie Poiret. Two varieties, var 1906 first described Nepenthes madagascariensis cylindrica and macrocarpa var from 1891 are now synonymized, other Untertaxa missing.