1. Raceme rachis and pedicels pubescent or puberulent ; bract and bracteole usually borne on distal 1/2 of pedicel. 总状花序轴和花梗具短柔毛或微柔毛；苞片和小苞片通常生于花梗上部的1/2。
2. Red light could increase the ornamental value of flower, flower diameter, bract area, content of cyanidin were all increased. 红光能提高花头的观赏品质，使花径、苞叶面积、花青素含量增加；
3. The resistance of frego bract cotton was neutral, but insecticideamount on its green boll surface increased by4.9—10.0 times. 窄卷苞叶对红铃虫的抗性表现为中性，但可提高杀虫剂在棉铃表面的分布量4.9—10.0倍。
4. We previously reported that SUPERNUMERARY BRACT (SNB) regulates the transition of spikelet meristems into floral meristems in rice. 我们之前已经报道过SNB(多颖壳)基因，它调控着水稻小穗分生组织向花分生组织的转变。
5. In Calocedrus and Platycladus, only a single series of inverted vascular bundles were generated in the adaxial side of the bract scale; 在苞鳞中只形成一组倒转的维管束，如侧柏属和翠柏属；
