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首页> 外文期刊>Nuytsia >A reduced circumscription of Balaustion and description of the new genus Cheyniana (Myrtaceae: Chamelaucieae)
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A reduced circumscription of Balaustion and description of the new genus Cheyniana (Myrtaceae: Chamelaucieae)

机译：减少了Balaustion的界限，并描述了新的Cheyniana属（桃金娘科：Chamelaucieae）

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B.L. Rye. A reduced circumscription of Balaustion and description of the new genus Cheyniana (Myrtaceae: Chamelaucieae). Nuytsia 19(1): 129-148 (2009). The myrtaceous genus Balaustion Hook. is reduced to its original monotypic circumscription. Balaustion s. str. is closely related to Tilophloia Trudgen & Rye ms, both genera having stamens in a single circular series, broad filaments, a very large placenta and seeds with a large concave hilum, but Balaustion is distinguished by its prostrate habit with adventitious roots, basifixed anthers and long tubular flowers adapted to pollination by birds. A second bird-pollinated species with elongated flowers, previously known as B. microphyllum C.A. Gardner, is transferred into the new genus Cheyniana Rye as C. microphylla (C.A. Gardner) Rye. Since the type material of this species is missing, it is lectotypified on the original illustration. Another large-flowered species, but with more spreading, apparently insect-pollinated flowers, is described as C. rhodella Rye & Trudgen. Cheyniana is related to also Oxymyrrhine Schauer, which it resembles in its very reduced anthers and narrow filaments, but differs in its large colourful petals and woody indehiscent fruit. Both of the small genera treated in this taxonomic revision belong to the tribe Chamelaucieae and are restricted to the south-west of Western Australia.
机译：B.L.黑麦。减少了Balaustion的界限，并描述了新的Cheyniana（桃金娘科：Chamelaucieae）。 Nuytsia 19（1）：129-148（2009）。玄武岩属Balaustion Hook。还原为其原始的单型限制。平衡s。海峡与Tilophloia Trudgen＆Rye ms密切相关，两个属都具有单个圆形系列的雄蕊，宽细丝，非常大的胎盘，种子带有大凹的门生，但Balaustion的特征是其strate伏的习性，具有不定根，基生花药和长管状花，适于鸟类授粉。第二种具有拉长花的鸟类授粉物种，以前称为小叶芽孢杆菌C.A.。加德纳（Gardner）以小叶隐孢子虫（C.A. Gardner）黑麦转移到了新的Cheyniana黑麦属中。由于缺少该物种的类型材料，因此在原始插图中对其进行了电化处理。另一个大型花种，但传播更多，显然是昆虫授粉的花，被称为罗氏杆菌黑麦和特鲁根。 Cheyniana也与Oxymyrrhine Schauer有关，它的花药非常减少，花丝很窄，但其大的彩色花瓣和木质的不裂果却有所不同。在这个分类学修订中处理的两个小属都属于Chamelaucieae部落，并且仅限于西澳大利亚州的西南部。

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