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Tetrastigma
''Tetrastigma'' is a genus of plants in the grape family, Vitaceae. The plants are lianas that climb with tendrils and have palmately compound leaves. Plants are dioecious, with separate male and female plants; female flowers are characterized by their four-lobed stigmas. The species are found in subtropical and tropical regions of Asia, Malaysia, and Australia, where they grow in primary rainforest, gallery forest and monsoon forest and moister woodland. Species of this genus are notable as being the sole hosts of parasitic plants in the family Rafflesiaceae, one of which, ''Rafflesia arnoldii'', produces the largest single flower in the world. ''Tetrastigma'' is the donor species for horizontal gene transfer to ''Sapria'' and ''Rafflesia'' due to multiple gene theft events. Within the Vitaceae, ''Tetrastigma'' has long been considered closely related to ''Cayratia'' and ''Cyphostemma'' and is now placed in the tribe Cayratieae. Fossil record A fossil seed fragment from the e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rafflesia
''Rafflesia'' () is a genus of parasitic flowering plants in the family Rafflesiaceae. The species have enormous flowers, the buds rising from the ground or directly from the lower stems of their host plants; one species has the largest flowers in the world. Plants of the World Online lists up to 41 species from this genus, all of them are found throughout Southeast Asia. Western Europeans first learned about plants of this genus from French surgeon and naturalist Louis Deschamps when he was in Java between 1791 and 1794; but his notes and illustrations, seized by the British in 1803, were not available to western science until 1861. The first British person to see one was Joseph Arnold in 1818, in the Indonesia rainforest in Bengkulu, Sumatra, after a Malay servant working for him discovered a flower and pointed it out to him. The flower, and the genus, was later named after Stamford Raffles, the leader of the expedition and the founder of the British colony of Singapore. The f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rafflesia Arnoldii
''Rafflesia arnoldii'', the corpse flower or giant padma, is a species of flowering plant in the parasitic genus ''Rafflesia''. It is noted for producing the largest individual flower on Earth. It has a strong and unpleasant odor of decaying flesh. It is native to the rainforests of Sumatra and Borneo. Although there are some plants with larger flowering organs like the titan arum (''Amorphophallus titanum'') and talipot palm (''Corypha umbraculifera''), those are technically clusters of many flowers. ''Rafflesia arnoldii'' is one of the three national flowers in Indonesia, the other two being the white jasmine (''Jasminum sambac'') and moon orchid (''Phalaenopsis amabilis''). It was officially recognized as a national "rare flower" ( id, puspa langka) in Presidential Decree No. 4 in 1993. Taxonomy The first European to find ''Rafflesia'' was the ill-fated French explorer Louis Auguste Deschamps. He was a member of a French scientific expedition to Asia and the Pacific, deta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vitaceae
The Vitaceae are a family of flowering plants, with 14 genera and around 910 known species, including common plants such as grapevines (''Vitis'' spp.) and Virginia creeper (''Parthenocissus quinquefolia''). The family name is derived from the genus ''Vitis''. Most ''Vitis'' species have 38 chromosomes (n=19), but 40 (n=20) in subgenus ''Muscadinia'', while ''Ampelocissus'', ''Parthenocissus'', and '' Ampelopsis'' also have 40 chromosomes (n=20) and ''Cissus'' has 24 chromosomes (n=12). The family is economically important as the berries of ''Vitis'' species, commonly known as grapes, are an important fruit crop and, when fermented, produce wine. Species of the genus ''Tetrastigma'' serve as hosts to parasitic plants in the family Rafflesiaceae. Taxonomy The name sometimes appears as Vitidaceae, but Vitaceae is a conserved name and therefore has priority over both Vitidaceae and another name sometimes found in the older literature, Ampelidaceae. In the APG III system (2009) onw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rafflesiaceae
The Rafflesiaceae are a family of rare parasitic plants comprising 36 species in 3 genera found in the tropical forests of east and southeast Asia, including ''Rafflesia arnoldii'', which has the largest flowers of all plants. The plants are endoparasites of vines in the genus ''Tetrastigma'' (Vitaceae) and lack stems, leaves, roots, and any photosynthetic tissue. They rely entirely on their host plants for both water and nutrients, and only then emerge as flowers from the roots or lower stems of the host plants. Description Flowers Rafflesiaceae flowers mimic rotting carcasses in scent, color, and texture to attract their pollinators, carrion flies. For this reason, some flowers of the family ''Rafflesia'' are nicknamed "corpse flowers". Most members of Rafflesiaceae possess a large, bowl-shaped floral chamber formed by a perianth tube and a diaphragm. This diaphragm is the opening for carrion fly pollinators and is surrounded by attractive sterile organs. Flowers are gener ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sapria
''Sapria'' is a genus of parasitic flowering plants in the family Rafflesiaceae. It grows within roots of ''Vitis'' and ''Tetrastigma''. The genus is limited to the tropical forests of South and Southeast Asia. The flowers of ''Sapria'' are about 20 cm in diameter, bright red with yellow or white dots, unisexual and dioecious. In contrast with the related genus ''Rafflesia ''Rafflesia'' () is a genus of parasitic flowering plants in the family Rafflesiaceae. The species have enormous flowers, the buds rising from the ground or directly from the lower stems of their host plants; one species has the largest flowers i ...'' the flowers have 10 lobes. Species Four species are described. References *Griffith, Proc. Linn. Soc. Lond. 1: 216. 1844.''Sapria''in ''Flora of China'' 5: 271. 2003.''A rare root parasitic plant (''Sapria himalayana'' Griffith.) in Namdapha National Park, northeastern India''in ''Current Science'', Vol. 85, No. 12, 25 December 2003 External links ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cayratia
The genus ''Cayratia'' consists of species of vine plants, typical of the tribe Cayratieae. Some of them are useful, and they are found in tropical and subtropical areas of Asia, Africa, Australia, and islands of the Pacific Ocean. Within the Vitaceae, ''Cayratia'' is most closely related to ''Tetrastigma'' and ''Cyphostemma''. As previously configured, the genus ''Cayratia'' was found not be monophyletic (for example, ''C. japonica'' was moved to '' Causonis'' being distinct from ''Cayratia pedata'', the type species). Species ''Plants of the World Online Plants of the World Online (POWO) is an online database published by the Royal Botanic Gardens, Kew. It was launched in March 2017 with the ultimate aim being "to enable users to access information on all the world's known seed-bearing plants by ...'' currently includes: # '' Cayratia acris'' (F.Muell.) Domin # '' Cayratia acuminata'' (A.Gray) A.C.Sm. # '' Cayratia albifolia'' C.L.Li # '' Cayratia anemonifolia'' (Zipp. ex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyphostemma
''Cyphostemma'' is a flowering plant genus in the family Vitaceae, with around 250 species distributed throughout the tropics and subtropics. These species are caudiciform and used to belong to the genus ''Cissus''. The genus name comes from Greek ''kyphos'', meaning ''hump'', and ''stemma'', meaning ''garland''. Within the Vitaceae, ''Cyphostemma'' is most closely related to ''Cayratia'' and ''Tetrastigma''. All species of ''Cyphostemma'' were once included in the genus ''Cissus'' but are now considered to be distinct. Distribution They originate from Northeast Africa to southern Arabia, in particular from Madagascar through to Indochina. Species #'' C. abercornense'' Wild & R.B.Drumm. #'' C. adamii'' Desc. #'' C. adenanthum'' (Fresen.) Desc. #'' C. adenocarpum'' (Gilg & M.Brandt) Desc. #'' C. adenocaule'' (Steud. ''ex'' A.Rich.) Desc. ''ex'' Wild & R.B.Drumm. #'' C. adenocephalum'' (Gilg & M.Brandt) Desc. #'' C. adenopodum'' (Sprague) D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cayratieae
The Cayratieae is one of five tribes of vine plants that are now recognised in this subfamily Vitoideae.Wen J, Lu LM, Nie ZI, Liu XQ, Zhang N, Ickert‐Bond S, Gerrath J, Manchester SR, Boggan J, Chen ZD (2018) A new phylogenetic tribal classification of the grape family (Vitaceae). ''Journal of Systematics and Evolution'' 56(4): 262-272. It contains genera restored or newly erected from species in the previously configured genus ''Cayratia'', which was found not be monophyletic: (''i.e.'' distinct from ''Cayratia pedata'': the type species of that genus). Genera # '' Acareosperma'' Gagnep. - Laos # '' Causonis'' Raf. - Tropical & Subtropical Asia to SW Pacific # ''Cayratia'' Juss. - Tropical & Subtropical Africa & Asia to W Pacific # ''Cyphostemma'' (Planch.) Alston - Tropical & S Africa to Indochina # '' Pseudocayratia'' J.Wen, L.M.Lu & Z.D.Chen - E Asia: Japan to Vietnam # ''Tetrastigma ''Tetrastigma'' is a genus of plants in the grape family, Vitaceae. The plants are lia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parasitic Plant
A parasitic plant is a plant that derives some or all of its nutritional requirements from another living plant. They make up about 1% of angiosperms and are found in almost every biome. All parasitic plants develop a specialized organ called the haustorium, which penetrates the host plant, connecting them to the host vasculature – either the xylem, phloem, or both. For example, plants like ''Striga'' or ''Rhinanthus'' connect only to the xylem, via xylem bridges (xylem-feeding). Alternately, plants like ''Cuscuta'' and some members of ''Orobanche'' connect to both the xylem and phloem of the host. This provides them with the ability to extract water and nutrients from the host. Parasitic plants are classified depending on the location where the parasitic plant latches onto the host (root or stem), the amount of nutrients it requires, and their photosynthetic capability. Some parasitic plants can locate their host plants by detecting volatile chemicals in the air or soil given ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liana
A liana is a long- stemmed, woody vine that is rooted in the soil at ground level and uses trees, as well as other means of vertical support, to climb up to the canopy in search of direct sunlight. The word ''liana'' does not refer to a taxonomic grouping, but rather a habit of plant growth – much like ''tree'' or ''shrub''. It comes from standard French ''liane'', itself from an Antilles French dialect word meaning to sheave. Ecology Lianas are characteristic of tropical moist broadleaf forests (especially seasonal forests), but may be found in temperate rainforests and temperate deciduous forests. There are also temperate lianas, for example the members of the ''Clematis'' or ''Vitis'' (wild grape) genera. Lianas can form bridges amidst the forest canopy, providing arboreal animals with paths across the forest. These bridges can protect weaker trees from strong winds. Lianas compete with forest trees for sunlight, water and nutrients from the soil. Forests without lian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tribe (biology)
In biology, a tribe is a taxonomic rank above genus, but below family and subfamily. It is sometimes subdivided into subtribes. By convention, all taxonomic ranks from genus upwards are capitalized, including both tribe and subtribe. In zoology, the standard ending for the name of a zoological tribe is "-ini". Examples include the tribes Caprini (goat-antelopes), Hominini (hominins), Bombini (bumblebees), and Thunnini (tunas). The tribe Hominini is divided into subtribes by some scientists; subtribe Hominina then comprises "humans". The standard ending for the name of a zoological subtribe is "-ina". In botany, the standard ending for the name of a botanical tribe is "-eae". Examples include the tribes Acalypheae and Hyacintheae. The tribe Hyacintheae is divided into subtribes, including the subtribe Massoniinae. The standard ending for the name of a botanical subtribe is "-inae". In bacteriology, the form of tribe names is as in botany, e.g., Pseudomonadeae, based on the ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miocene
The Miocene ( ) is the first geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and means "less recent" because it has 18% fewer modern marine invertebrates than the Pliocene has. The Miocene is preceded by the Oligocene and is followed by the Pliocene. As Earth went from the Oligocene through the Miocene and into the Pliocene, the climate slowly cooled towards a series of ice ages. The Miocene boundaries are not marked by a single distinct global event but consist rather of regionally defined boundaries between the warmer Oligocene and the cooler Pliocene Epoch. During the Early Miocene, the Arabian Peninsula collided with Eurasia, severing the connection between the Mediterranean and Indian Ocean, and allowing a faunal interchange to occur between Eurasia and Africa, including the dispersal of proboscideans into Eurasia. During the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
