雄全同株植物簇花芹花期性别分配与开花式样

张振春, 谭敦炎

Floral sex allocation and flowering pattern in the andromonocious Soranthus meyeri(Apiaceae)

ZHANG Zhen-Chun, TAN Dun-Yan

表2 簇花芹植株的伞形花序数及花序上的雄花和两性花数(平均值±标准误差)

Table 2 Number of umbellets ( umbels ) and staminate and hermaphrodite flowers of one umbel in Soranthus meyeri (mean ± SE)

观测指标 Items 2006 2007 2008 F 一级复伞形花序 Primary umbel 伞形花序数 Number of umbellets 15.4 ± 0.8 14.8 ± 0.8 16.2 ± 0.6 0.37 每伞形花序雄花数 Number of staminate flowers in an umbellet 0.7 ± 0.3 4.0 ± 0.8 0.7 ± 0.2 15.51** 每伞形花序两性花数 Number of hermaphrodite flowers in an umbellet 15.3 ± 0.5 13.3 ± 0.8 16.3 ± 0.6 5.78** 二级复伞形花序 Secondary umbel 复伞形花序数 Number of umbels 4.0 ± 0.3 3.0 ± 0.4 3.7 ± 0.4 2.05 每复伞形花序伞形花序数 Number of umbellets in an umbel 4.4 ± 0.3 4.2 ± 0.3 4.3 ± 0.3 0.17 每伞形花序雄花数 Number of staminate flowers in an umbellet 7.4 ± 0.9 8.7 ± 0.9 6.7 ± 1.0 3.46* 每伞形花序两性花数 Number of hermaphrodite flowers in an umbellet 9.0 ± 1.0 6.1 ± 0.9 9.3 ± 1.0 3.58*