Davis Charles C
Department of Organismic and Evolutionary Biology, Harvard University Herbaria, 22 Divinity Avenue, Cambridge, MA 02138, USA.
Curr Biol. 2008 Dec 9;18(23):R1102-4. doi: 10.1016/j.cub.2008.10.011.
Recent studies clarifying the closest relatives of the world's largest flowers, Rafflesiaceae, whose floral diameters range from approximately 11 to approximately 100 cm, indicated that they evolved from tiny-flowered ancestors in a burst of floral gigantism. New data now suggest that floral size evolution within Rafflesiaceae may be more dynamic than expected, with both recent and rapid changes in flower size.
最近的研究明确了世界上最大的花朵——大花草科植物的近亲,其花径从约11厘米到约100厘米不等,研究表明它们是在一阵花卉巨型化过程中从花朵微小的祖先演化而来的。新数据如今表明,大花草科植物的花朵大小演化可能比预期更具动态性,花朵大小近期出现了快速变化。