Table 4.

The rate of grain set (%) of hybridization between species.

♂	♀
	E. myrianthum	E. acuminatum	E. wushanense	E. letorrhizum	E. luodianense	E. simplicifolium	E. yinjiangense
E. myrianthum		15.38	15.83	26.97	35.82	16.85	30.09
E. acuminatum	29.17		49.51	24.34	47.06	73.35	41.67
E. wushanense	33.03	60.32		28.26	63.41	92.23	64.04
E. letorrhizum	28.69	29.62	42.86		92.44	87.01	76.47
E. luodianense	35.96	43.88	80.15	67.68		73.08	88.07
E. simplicifolium	35.05	71.43	88.78	75.00	48.20		77.01
E. yinjiangense	20.80	43.08	72.73	41.38	83.33	62.92