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Irenodendron
''Irenodendron'' is a genus of three species of shrubs and trees in the willow family Salicaceae native to northern South America. These species were previously treated as a section of the genus ''Laetia'' in the family Flacourtiaceae, but the genus ''Laetia'' and its relatives were moved to the Salicaceae based on analyses of DNA data. ''Irenodendron'' was later hypothesized to be more closely related to the genera '' Ryania'', '' Trichostephanus'', and ''Piparea'' due to the presence of an apically divided style, and wood with dark heartwood and large rays; it differs from those genera in having cup-shaped bracts under the flowers and in lacking staminodes In botany, a staminode is an often rudimentary, sterile or abortive stamen, which means that it does not produce pollen.Jackson, Benjamin, Daydon; ''A Glossary of Botanic Terms with their Derivation and Accent''; Published by Gerald Duckworth & C .... References Salicaceae Flora of Southern America Salicaceae ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salicaceae
The Salicaceae is the willow family of flowering plants. The traditional family (Salicaceae ''sensu stricto'') included the willows, poplar, aspen, and cottonwoods. Genetic studies summarized by the Angiosperm Phylogeny Group (APG) have greatly expanded the circumscription of the family to contain 56 genera and about 1220 species, including the Scyphostegiaceae and many of the former Flacourtiaceae. In the Cronquist system, the Salicaceae were assigned to their own order, Salicales, and contained three genera (''Salix'', ''Populus'', and '' Chosenia''). Recognized to be closely related to the Violaceae and Passifloraceae, the family is placed by the APG in the order Malpighiales. Under the new circumscription, all members of the family are trees or shrubs that have simple leaves with alternate arrangement and temperate members are usually deciduous. Most members have serrate or dentate leaf margins, and those that have such toothed margins all exhibit salicoid teeth; a sali ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flacourtiaceae
The Flacourtiaceae is a defunct family of flowering plants whose former members have been scattered to various families, mostly to the Achariaceae and Salicaceae. It was so vaguely defined that hardly anything seemed out of place there and it became a dumping ground for odd and anomalous genera, gradually making the family even more heterogeneous. In 1975, Hermann Sleumer noted that "Flacourtiaceae as a family is a fiction; only the tribes are homogeneous." In Cronquist's classification, the Flacourtiaceae included 79–89 genera and 800–1000 species. Of these, many, including the type genus ''Flacourtia'', have now been transferred to the Salicaceae in the molecular phylogeny-based classification, known as the APG IV system, established by the Angiosperm Phylogeny Group. In the list below, the Salicaceae are circumscribed broadly. Some taxonomists further divide the Salicaceae '' sensu lato'' into three families: Salicaceae ''sensu stricto'', Scyphostegiaceae, and Samyd ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trichostephanus
''Trichostephanus'' is a genus of flowering plants belonging to the family Salicaceae The Salicaceae is the willow family of flowering plants. The traditional family (Salicaceae ''sensu stricto'') included the willows, poplar, aspen, and cottonwoods. Genetic studies summarized by the Angiosperm Phylogeny Group (APG) have greatly .... Its native range is Cameroon and Gabon. Species: * '' Trichostephanus acuminatus'' Gilg * '' Trichostephanus gabonensis'' Breteler References {{Taxonbar, from=Q17563272 Salicaceae Salicaceae genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Staminodes
In botany, a staminode is an often rudimentary, sterile or abortive stamen, which means that it does not produce pollen.Jackson, Benjamin, Daydon; ''A Glossary of Botanic Terms with their Derivation and Accent''; Published by Gerald Duckworth & Co. London, 4th ed 1928 Staminodes are frequently inconspicuous and stamen-like, usually occurring at the inner whorl of the flower, but are also sometimes long enough to protrude from the corolla. Sometimes, the staminodes are modified to produce nectar, as in the Witch Hazel ''(Hamamelis)''.jin lu mei shu. Hamamelis Linnaeus, Sp. Pl. 1: 124. 1753. Flora of China 9: 32. 2003 Staminodes can be a critical characteristic for differentiating between species, for instance in the orchid genus ''Paphiopedilum'', and among the penstemons. In the case of Cannas ''Canna'' or canna lily is the only genus of flowering plants in the family Cannaceae, consisting of 10 species.The Cannaceae of the World, Hiltje Maas-van de Kamer, H. Maas-van der ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wood
Wood is a porous and fibrous structural tissue found in the stems and roots of trees and other woody plants. It is an organic materiala natural composite of cellulose fibers that are strong in tension and embedded in a matrix of lignin that resists compression. Wood is sometimes defined as only the secondary xylem in the stems of trees, or it is defined more broadly to include the same type of tissue elsewhere such as in the roots of trees or shrubs. In a living tree it performs a support function, enabling woody plants to grow large or to stand up by themselves. It also conveys water and nutrients between the leaves, other growing tissues, and the roots. Wood may also refer to other plant materials with comparable properties, and to material engineered from wood, or woodchips or fiber. Wood has been used for thousands of years for fuel, as a construction material, for making tools and weapons, furniture and paper. More recently it emerged as a feedstock for the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Style (botany)
The stigma () is the receptive tip of a carpel, or of several fused carpels, in the gynoecium of a flower. Description The stigma, together with the style and ovary (typically called the stigma-style-ovary system) comprises the pistil, which is part of the gynoecium or female reproductive organ of a plant. The stigma itself forms the distal portion of the style, or stylodia, and is composed of , the cells of which are receptive to pollen. These may be restricted to the apex of the style or, especially in wind pollinated species, cover a wide surface. The stigma receives pollen and it is on the stigma that the pollen grain germinates. Often sticky, the stigma is adapted in various ways to catch and trap pollen with various hairs, flaps, or sculpturings. The pollen may be captured from the air (wind-borne pollen, anemophily), from visiting insects or other animals (biotic pollination), or in rare cases from surrounding water ( hydrophily). Stigma can vary from long and slende ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piparea
''Piparea'' is a genus of flowering plants belonging to the family Salicaceae. Its native range is Southern Mexico to Southern Tropical America. Species: *'' Piparea dentata'' *'' Piparea multiflora'' *'' Piparea spruceana'' References {{Taxonbar, from=Q106917561 Salicaceae Salicaceae genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laetia
''Laetia'' is a genus of plants in the family Salicaceae (formerly placed in Flacourtiaceae The Flacourtiaceae is a defunct family of flowering plants whose former members have been scattered to various families, mostly to the Achariaceae and Salicaceae. It was so vaguely defined that hardly anything seemed out of place there and it bec ...). Species Salicaceae genera Taxonomy articles created by Polbot {{Salicaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ryania
''Ryania'' is a genus of flowering plants in the family Salicaceae; it was previously listed in the now defunct family Flacourtiaceae. The genus is significant partly because the ryanoid insecticides are derived from, and have the same mode of action as the alkaloid ryanodine, which was originally extracted from ''Ryania speciosa''. The Catalogue of Life includes these species: * ''Ryania angustifolia'' * ''Ryania canescens'' * ''Ryania dentata'' * ''Ryania mansoana'' * ''Ryania pyrifera'' * ''Ryania riedeliana'' * ''Ryania sauricida'' * ''Ryania speciosa ''Ryania speciosa'' is a species of plant in the family Salicaceae. The species is significant partly because the ryanoid insecticides are derived from, and have the same mode of action as the alkaloid ryanodine, which was originally extracted ...'' * '' Ryania spruceana'' References External links * * {{Authority control Salicaceae Salicaceae genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
