首页> 外文期刊>Journal of the Botanical Research Institute of Texas >TWO FOSSIL FLOWERS OF TRICHILIA (MELIACEAE) IN DOMINICAN AMBER
【24h】

TWO FOSSIL FLOWERS OF TRICHILIA (MELIACEAE) IN DOMINICAN AMBER

机译:多米尼加琥珀色的毛CHI科的两个化石花

获取原文
获取原文并翻译 | 示例
       

摘要

Mid-Tertiary amber from the Caribbean island of Hispaniola has yielded flowers of several eudicot species characteristic of tropical and subtropical forests of that time period. We here describe as new species two recently discovered Dominican amber flowers, which we assign to Trichina, the largest genus of Meliaceae in the neotropics (Pennington et al. 1981). Both flowers possess features that frequently occur in the genus, such as a dish- or cup-shaped calyx, spreading or recurved petals, and completely fused filaments forming a cylindrical or cyathiform tube that bears acute or apiculate lobes alternating with the anthers on the rim. One flower is complete, with pistil and anthers present, while on the second, the pistil and all but one anther have been damaged or removed by insect predation. The one remaining anther is malformed and non-functional; the filament tube appears to be filled with debris left by the putative insect herbivore. The two fossils differ in their calyx shape and pubescence, corolla pubescence, and filament tube shape, and are described as the new species Trichilia glaesaria and Trichilia antiqua.
机译:来自加勒比海伊斯帕尼奥拉岛的第三纪中期琥珀产生了该时期热带和亚热带森林特有的几种真双子叶植物的花。在这里,我们将新近发现的两朵多米尼加琥珀花描述为新物种,我们将其分配给新热带地区Mel蝶科最大的属Trichina(Pennington et al。1981)。两种花都具有该属中经常发生的特征,例如碟形或杯形的花萼,散开或弯曲的花瓣,以及完全融合的细丝,形成圆柱形或胞形的管,带有锐利的或具小尖的裂片,与轮缘上的花药交替。一朵花完整,有雌蕊和花药,而第二朵,雌蕊和除一朵花药外的所有花都已被昆虫捕食破坏或除去。剩下的一个花药畸形且无功能;细丝管似乎充满了假定的昆虫食草动物留下的碎片。两种化石的花萼形状和短柔毛,花冠短柔毛和花丝筒形状不同,被称为新物种Trichilia glaesaria和Trichilia antiqua。

著录项

获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号