SYNOPSIS OF THE NATURAL ORDERS. 



23 Stamens opposite the petals. Sepals 2. 



xxxii. Portulacece. 

 Stamens opposite the petals. Sepals 3 5 24 



24 Stamens 10 or fewer. Stipules none. 



xiv. Caryophyllacece (Alsineae). 

 Stamens 5. Stipules present. Petals distinct. 



xiv. Caryctphyllacete (Polycarpeas). 

 Stamens 5. Stipules present. Petals subulate. 



xxxiii. Paronychiacece. 



25 Stamens free 27 



Stamens polyadelphous xvii. Hypericcicecc.. 



Stamens monadelphous or inserted in an hypogynous 



ring 20 



26 Stamens 4 5, Stipules none xxii. Linacea. 



Stamens 10. Stipules none or united to the base of the 



petioles. Cells of ovary 5 ; each many-seeded. 



xxi. Oxalidacea. 



Stamens 10. Stipules present. Cells of ovary 5 ; each 

 1 -seeded xix, Geraniacece. 



27 Style 1 28 



Styles 3 5. Anthers terminal . . . .xiii. Elatinacece. 

 Styles 3 5. Filaments extending beyond the anthers. 



Ixxx. Trilliacece. 



28 Stamens 3. Petals 3. Fruit fleshy. Ixxi. Empetracece. 

 Stamens and petals 4 or 5 ; inserted in an hypogynous 



disk .xxiii. Celastracece. 



Stamens 5 or more. Petals 5. Caps. 1-celled, 3 4- 



valved xi. Frankeniacecc. 



Stamens usually 8. Petals 5. Fruit winged, separating 



into two capsules xviii. Aceracece. 



Stamens 8 10. Capsules 5-celied, 5-valved. 



xlvii. Ericacece (Pyroleae and Monotropens). 



29 Ovary 1-celled with one pendulous ovule. Stamens 



as many as and opposite to the petals. 



xl. Loranthacece. 



Ovary 1-celled ; placentas 2 parietal ; ovules many. 

 Stamens and petals 4 5, alternating. 



xxxv. Ribesiacece. 

 Ovary 2 many-celled ; placentas central. Or a pome. 30 



30 Stamens many, indefinite. Fruit a 1 5-seeded pome. 



xx vi. Rosacece (Pomeae). 



Stamens as many as and alternating with the petals, 

 or twice as many 31 



31 Petals imbricate in the bud 32 



Petals valvate in the bud 33 



Petals twisted in the bud. Sepals valvate. Style 1. 



xxix. Onayracece. 



32 Petals 5. Stamens 5. Styles 2. Inflorescence umbellate. 



Seeds solitary xxxvii. UmbelUfera. 



b 5 



