Observations were made of 200 embryos prepared from ripe achenes of Chondrilla juncea collected after open pollination. The majority of seeds (60%) contained a single embryo with two regularly formed cotyledons. Embryos with three more or less equal cotyledons were observed in 5% of the seeds, and twins were found in 6%. Some (20%) contained embryos with split cotyledons and a regularly developed radicle, and others had both the cotyledons and radicle split. Embryo sacs (ESs) with delayed globular embryos surrounded by degenerating endosperm were dissected from 9% of the seeds whose color and size indicated that they should be fully developed.
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