Ovary one, but deeply 4-lobed around the style (or 2-lobed in Heliotropium).
Leaves alternate. [Borraginaceæ], [360]
Leaves opposite. [Mentha], in [Labiatæ], [407]
Ovary one; pod 2-lobed or 2-horned at the summit. [Loganiaceæ], [345]
Ovary one; not deeply lobed,
One-celled, one-ovuled, becoming an achene. [Plantaginaceæ], [422]
One-celled, with ovules parietal or on 2 parietal placentæ.
Leaves (or in Menyanthes three leaflets) entire. [Gentianaceæ], [346]
Leaves toothed, lobed, or pinnately compound. [Hydrophyllaceæ], [357]
Two- to ten-celled.