Fruit a 1-celled and 1-seeded samara or a drupe. [Oleaceæ], [335]
Ovules single in each cell of the
Three-nine-celled ovary; leaves heath-like. [Empetraceæ], [487]
Three-celled ovary; leaves broad. [Rhamnaceæ], [111]
One–two-celled ovary; styles or stigmas 2-cleft. [Urticaceæ], [461]
One-celled ovary; style and stigma single and entire.
Anthers opening longitudinally. [Thymelæaceæ], [448]
Anthers opening by uplifted valves. [Lauraceæ], [446]
B. Flowers monœcious or diœcious, one or both sorts in catkins.
1. Only one sort of flowers in catkins or catkin-like heads.