Fig. 4.

Diagram summarizing the various modes of sexual and non-sexual reproduction in Hypericum maculatum and H. perforatum, and expected ratios in DNA content (embryo:endosperm) as measured here with FCSS (flow cytometric seed screen). The diagram uses a tetraploid (4n) mother plant as an example. The male gamete is indicated in red if contributing to endosperm fertilization and/or egg cell fertilization. The colour code corresponds to the categorization of our FCSS data summarized in Supplementary Data Table S6.