SYMPETAI.AE 57 



639. Stamens 8. Style i. Flowers hermaphrodite. 



Salaxis, 189. Ericaceae. 

 Stamens lo — 30. Styles 2. Flowers unisexual or polygamous. 



Euclea, 195. Ebenaceae. 



640. (621.) Fertile stamens I — 4 641 



Fertile stamens 5 — 16 658 



641. Flowers more or less irregular 642 



Flowers regular 652 



642. Leaves opposite or whorled 643 



Leaves alternate, at least the upper ones 648 



643. Leaves provided with stipules or connected at their base by transverse 



lines or ridges. Shrubs or trees 198. Loganiaceae. 



Leaves rarely with stipules or transverse lines or ridges at their base, 

 and then herbs or undershrubs 644 



644. Seeds with distinctly developed albumen 645 



Seeds with very scanty albumen or without any 646 



645. Seeds with funicles provided with a wart-like . outgrowth. Placentas 



remaining attached to the beaked and recurved valves of the capsule. 

 Disc not distinctly developed. Calyx deeply divided. Corolla-lobes 

 5, with descending aestivation. Anther-halves not confluent. Stigma 



lobed. Flowers in spikes 216. Acanthaceae. 



Seeds without an outgrowth from the funicle or without a funicle. Placen- 

 tas usually separating from the valves of the capsule. Disc more or less 

 distinctly developed 208. Scrophulariaceae. 



646. Seeds with scanty albumen. Plants with glandular hairs. Stamens 4. 



210. Pedaliaceae. 

 Seeds without albumen 647 



647. Seeds borne on a large hook-like outgrowth of the funicle, rarely on a small 



cushion-shaped one, and then herbs. Fruit a capsule, the valves bearing 

 the split dissepiment. Ovules usually few. Leaves simple. 



216. Acanthaceae. 



Seeds not on a hook-like outgrowth of the funicle, more or less distinctly 



winged or marginate. Fruit a capsule, the valves usually separating 



from the more or less dilated dissepiment, or a nut or berry. Ovules 



numerous. Stamens 4. Leaves usually compound. Shrubs or trees. 



209. Bignoniaceae. 

 648 (642.) Corolla with valvate or folded aestivation. Partition of the ovary 

 usually placed obliquely to the median plane of the flower. 



207. Solanaceae. 



Corolla with imbricate, not folded aestivation. Partition of the ovary 



usually placed transversely to the median plane of the flower. . 649 



649. Fruit a drupe. Ovules in each ovary-cell 4 — 6, in pairs placed one above 



the other. Stigma i , Stamens 4. Anther-halves confluent at the apex. 



Shrubs Oftia, 217. Myoporaceae. 



Fruit a capsule, nut, or berry. Ovules usually numerous. . . . 650 



