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Carnivorous plants of Africa
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(Buch) |
Dieser Artikel gilt, aufgrund seiner Grösse, beim Versand als 2 Artikel!
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| Source: Wikipedia. Pages: 27. Chapters: Drosera regia, Pinguicula, Aldrovanda vesiculosa, Genlisea margaretae, Utricularia australis, Drosera capensis, Nepenthes madagascariensis, Drosophyllum, Utricularia livida, Utricularia caerulea, Triphyophyllum, Utricularia pubescens, Utricularia stellaris, Utricularia scandens, Utricularia arenaria, Nepenthes pervillei, Utricularia simulans, Utricularia inflexa, Drosera indica, Utricularia bisquamata, Utricularia striatula, Utricularia tortilis, Utricularia reflexa, Drosera madagascariensis, Utricularia firmula, Utricularia spiralis, Utricularia macrocheilos, Utricularia foveolata, Utricularia prehensilis, Roridula, Utricularia welwitschii, Utricularia andongensis, Drosera aliciae, Utricularia gibba, Nepenthes masoalensis, Utricularia appendiculata, Pinguicula lusitanica, Utricularia micropetala, Utricularia rigida, Utricularia odontosepala, Utricularia pentadactyla, Utricularia subulata, Utricularia sandersonii, Drosera dielsiana, Utricularia podadena, Utricularia mannii, Drosera cuneifolia, Utricularia microcalyx, Drosera nidiformis, Utricularia pobeguinii, Plumbago auriculata, Utricularia benjaminiana, Utricularia tetraloba, Utricularia bracteata, Utricularia raynalii, Utricularia troupinii, Utricularia letestui, Roridula dentata, Drosera venusta, Utricularia cymbantha, Utricularia foliosa, Utricularia stanfieldii, Drosera slackii, Roridula gorgonias, Drosera cistiflora. Excerpt: Drosera regia, commonly known as the king sundew, is a carnivorous plant in the sundew genus Drosera and is endemic to a single valley in South Africa. The genus name Drosera comes from the Greek word droseros, meaning "dew-covered". The specific epithet regia is derived from the Latin for "royal", a reference to the "striking appearance" of the species. Individual leaves can reach 70 cm (28 in) in length. It has many unusual relict characteristics not found in most other Drosera species, including woody rhizomes, operculate pollen, and the lack of circinate vernation in scape growth. All of these factors, combined with molecular data from phylogenetic analysis, contribute to the evidence that D. regia possesses some of the most ancient characteristics within the genus. Some of these are shared with the related Venus flytrap (Dionaea muscipula), which suggests a close evolutionary relationship. The tentacle-covered leaves can capture large prey, such as beetles, moths, and butterflies. The tentacles of all Drosera species are specialised stalked glands on the leaf's upper surface that produce a sticky mucilage. The leaves are considered active flypaper traps that respond to captured prey by bending to surround it. In its native fynbos habitat, the plants compete for space with native marsh grasses and low evergreen shrubs. Of the two known populations of D. regia, the higher altitude site appears to be overgrown and is essentially extirpated. The lower altitude site is estimated to have about 50 mature plants, making it the most endangered Drosera species, since it is threatened with extinction in the wild. It is often cultivated by carnivorous plant enthusiasts and a single cultivar has been registered. Detail of a leaf A leaf wrapped around prey Detail of a flowerDrosera regia plants are fairly large herbs that produce horizontal woody rhizomes and a crown of large, linear leaves up to 70 cm (28 in) long and 2 cm (0.8 in) wide. The leaves possess stalked glands (t |
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