XX XIV SYNOPSIS OF THE NATURAL OKDEK9. 



Petals 45. Stamens 510. Styles 2. (Calyx some- 

 times inferior.) Capsule 2-valved. Seeds many. 

 (Fruit with two horns.) . . . .xxxvi. Saxifrayacece. 



Petals 4. Stamens 48. Styles 4. Fruit of 4 hard 

 nuts xxx, Haloragacece. 



33 Fruit a berry. Styles more than 2, Leaves alternate. 



xxxviiL Hederacece. 

 Fruit a drupe. Style 1. Leaves opposite. 



xxxix. Cornace<e. 

 Fruit dry. Styles 2, Leaves alternate. 



xxxvii, Umbelliferce (in part). 



34 Stamens inserted beneath an epigynous disk. 



xlvii. Ericacece (Vaccinieae). 



Stamens inserted with the corolla and free from it . . 35 

 Stamens inserted on the tube of the corolla or between 

 its lobes 36 



35 Filaments free xlvi. Campanulacece. 



Filaments united into 3 bundles . . xxxi. Cucurbit acece. 



36 Anthers united. Flowers in a head. xlv. Composites. 

 Anthers free 37 



37 Flowers in a head. Calyx double . .xliv. Dipsacacece. 

 Flowers corymbose or cymoae 33 



38 Fruit a double indehiscent pericarp, 2-celled, 2-seeded. 



xlii. Rubiacece. 



Fruit dry, with 1 perfect cell, 1 -seeded ; and often 2 



empty cells. Stamens 1 3 . . xliii. Valerianacece. 



Fruit fleshy, with 1 or several seeds. Stamens 4 5. 



xli, Caprifoliacecp \ 



39 Ovary and fruit 4-lobed, separating into 4 small 1-seed- 



ed nuts. Style from base of ovary 40 



Fruit of severarfollicles. 



xxxiv. Crassulacea (Cotyledon). 

 Ovary and fruit simple. Style terminal 41 



40 Stamens 5. Corolla regular. Leaves alternate. 



liv. Boraginacea. 



Stamens 4, didynamous, or 2. Corolla 2-lipped. Leaves 

 opposite Iviii. Labiate. 



41 Ovary 1-celled, 1-seeded. Calyx tubular. Stamens 5. 



Styles 5 Ixii. Plumbaginacece. 



Ovary 1-celled, many-seeded 42 



Ovary with 2 or more cells (but fruit sometimes 1- 



celled) 44 



42 Corolla scarious, regular, 4-parted. Stamens 4. 



Ixiii. Plantaginacece. 

 Corolla coloured 43 



43 Corolla irregular. Stamens 2 . . . .lx. Lentibulariacece. 

 Corolla regular. Stamens 4 5, opposite to the seg- 

 ments of the corolla Ixi. Primulacece. 



Corolla irregular. Stamens 4, didynamous. 



Ivi. Orobanchaceez. 



