Figure 4

Flower number per plant, fruit set, total seed output per plant and seed number per fruit on Primula secundiflora (mean + SE) in six populations in 2011 and 2012, in Shangri-La, Yunnan, China, examining the effects of the morph and population in different pollination environments (n = 30–41).
Bars with asterisks indicate a significant difference between morphs (* P < 0.05, ** P < 0.01, ***P < 0.001).