SYMPETALAE 59, 



661. Style stigmatose at the apex or between the apical lobes. Fruit a septi- 



cidal capsule. Herbs or undershrubs. . . . 199. Gentianaceae. 

 Style stigmatose below the apex. Mostly shrubs or trees. 



200. Apocynaceae. 



662. Corolla with valvate or folded aestivation O63 



Corolla with imbricate or contorted aestivation ' . 665 



663. Stamens free from the corolla. Herbs. Lightfootia, 224. Campanulaceae. 

 Stamens attached to the corolla 664 



664. Corolla almost entire, somewhat irregular. Trees. 



Htimbertia, 202. Convolvulaceae. 

 Corolla lobed, rarely almost entire, but then herbs or undershrubs. 



207. Solanaceae. 

 6,65. Corolla with contorted aestivation. Style stigmatose beneath the thick- 

 ened and sometimes 2-lobed apex 200. Apocynaceae. 



Corolla with imbricate, not contorted aestivation. Style (or styles) 

 stigmatose at the apex or between the apical lobes 666 



666. Styles 2, free or united at the base. Disc wanting. Corolla regular 



Seeds albuminous ; embryo straight. Herbs or undershrubs. 



203. Hydrophyllaceae. 

 Style I, undivided 667 



667. Seeds winged, exalbuminous. Fruit a loculicidal capsule. Stigmas 2. 



Corolla shghtly irregular. Shrubs - 209. Bignoniaceae. 



Seeds not winged, albuminous 668 



668. Seeds with straight embryo. Fruit a capsule opening lengthwise. Stigma 



I. Corolla slightly irregular ; tube short. . 208. Scrophulariaceae. 



Seeds with curved embryo. Fruit a capsule opening by a lid, or a berry. 



Anthers opening by two longitudinal slits. . . . 207. Solanaceae. 



669. (604.) Ovule I in each ovary-cell 670 



Ovules 2 or more in each ovary-cell 685 



670. Stamens as many as and alternate with the divisions of the corolla, or 



fewer 671 



Stamens as many as and opposite the divisions of the corolla, or more. 679 



671. Flowers unisexual, regular. Corolla divided almost to the base. Disc 



wanting. Fruit a drupe. Shrubs or trees. Leaves alternate. 



Ilex, 128. Aquifoliaceae. 

 Flowers hermaphrodite, rarely polygamous 672 



672. Anthers opening by an apical pore. Stamens 5. Ovary 3-celled. Flowers 



irregular 120. Polygalaceae. 



Anthers opening by two longitudinal slits sometimes confluent at the 

 apex ; in the latter case ovary 4-celled 673 



673. Stamens free from the corolla or scarcely adhering to it, 4. Flowers 



regular 189. Ericaceae. 



Stamens evidently attached to the corolla-tube 674 



