Corolla with imbricate, not folded aestivation. Partition of the ovary usually placed transversely to the median plane of the flower. 649 640. Fruit a drupe. Ovules in each ovary-cell 4-6, in pairs placed one above the other. Stigma 1. Stamens 4. Anther-halves confluent at the apex. Shrubs. _Oftia_, =217. Myoporaceae=. Fruit a capsule, nut, or berry. Ovules usually numerous. 650 650. Seeds exalbuminous, usually horizontal and winged. Ovules numerous. Stigmas 2. Stamens 4. Shrubs or trees. Leaves usually compound. =209. Bignoniaceae.= Seeds albuminous. Leaves simple, but sometimes dissected. 651 651. Albumen very thin, nearly membranous. Stigmas or stigma-lobes 2. Stamens 4. Plants with glandular hairs. Lower leaves opposite. =210. Pedaliaceae.= Albumen distinctly developed. =208. Scrophulariaceae.= 652. (641.) Corolla with contorted aestivation. Stamens 4. 653 Corolla with valvate or imbricate, not contorted aestivation. 654 653. Style stigmatose below the apex. Mostly shrubs or trees. =200. Apocynaceae.= Style stigmatose at the apex or between the apical lobes. Fruit a septicidal capsule. Herbs or undershrubs. =199. Gentianaceae.= 654. Corolla scarious. Stamens 4. Disc wanting. Stigma 1. Fruit dehiscing by a lid. Flowers in spikes or heads. _Plantago_, =218. Plantaginaceae=. Corolla not scarious. Fruit dehiscing lengthwise or indehiscent. 655 655. Anthers with confluent halves, opening by a transverse slit. Disc more or less distinctly developed. =208. Scrophulariaceae.= Anthers with distinct halves, opening by two longitudinal slits or apical pores. 656 656. Leaves alternate, simple, but sometimes dissected. Corolla usually folded in bud. Partition of the ovary usually placed obliquely to the median plane of the flower. Ovules generally numerous. =207. Solanaceae.= Leaves opposite or whorled, rarely alternate, but then compound. Corolla not folded. Trees, shrubs, or undershrubs. 657 657. Leaves provided with stipules or connected at their base by transverse lines or ridges, simple, opposite or whorled. Ovules usually numerous. =198. Loganiaceae.= Leaves without either stipules or transverse lines or ridges at their base. Ovules 3-4 in each ovary-cell. Disc none. =197. Oleaceae.= 658. (640.) Leaves opposite or whorled. 659 Leaves alternate. 662 659. Leaves provided with stipules or connected at their base by transverse lines or ridges. Shrubs or trees. =198. Loganiaceae.= Leaves without stipules, but sometimes connected by transverse lines; in this case herbs or undershrubs. Stamens 5. 660 660. Corolla with imbricate, not contorted aestivation. Style stigmatose at the entire apex. Fruit a berry. Shrubs growing upon trees. _Dermatobotrys_, =208. Scrophulariaceae=. Corolla with contorted aestivation. 661 661. Style stigmatose at the apex or between the apical lobes. Fruit a septicidal capsule. Herbs or undershrubs. =199. Gentianaceae.= Style stigmatose below the apex. Mostly shrubs or trees. =200. Apocynaceae.=