31 - Ceratophyllaceae
from Division 5 - Magnoliophyta
Summary
Submerged aquatic perennial herbs. Leaves in whorls of (3–)6–8(–12), regularly forked into linear segments; without stipules. Flowers solitary in leaf axils, male and female at different nodes, monoecious, actinomorphic, hypogynous, sessile. Perianth segments numerous, free, green, narrow, in one whorl. Male flowers with 10–25 stamens. Female flowers with a 1-celled ovary with 1 ovule. Style 1; stigma minutely bifid. Fruit an achene.
Contains one genus and about 10 species, cosmopolitan.
- Type
- Chapter
- Information
- Flora of Great Britain and Ireland , pp. 133 - 134Publisher: Cambridge University PressPrint publication year: 2018