Eosaceae. Flowers usually regular. Stamens often definite. Ovary consisting of 1 or 



more free or afterwards combining carpels, rarely entire ; styles usually distinct. 



Ovules usually 2, anatropous. Albumen usually none. Trees shrubs or trees, 



with simple or compound alternate leaves. Stipules present. 

 Sa;n/r(/eap. Flowers regular or nearly so. Stamens definite or rarely indefinite. 



Carpels usually united into a 1-or several-celled ovary, at least at the base, free or 



more or less adnate or inferior. Styles usually distinct or readily separable. 



Albumen usually copious Shrubs or herbs with simple or compound variously 



arranged leaves and with or without stipules. 

 Crassulaceae. Flowers isomerous and regular. Stamens in 1 or 2 series. Gynoecium 



superior with distinct carpels. Seeds albuminous. Usually fleshy herbs. 

 Droseraceae, Glandular pilose herbs. Flowers regular, hermaphrodite. Ovary 1-celled 



with 2 to 5 simple or 2-eleft styles. 

 namamclideae. Trees or shrubs. Leaves opposite. Flowers often aohlamydeous, and 



usually in heads. Ovaries and carpels fewer than floral parts. Ovules often 1 or 



2 in each cell, suspended. 

 Halorageae. Herbs or rarely shrubs. Leaves opposite or alternate, without stipules. 



Flowers small, regular. Stamens definite. Ovary inferior, with as many cells and 



Ovules as styles or rarely fewer, the ovule suspended from the apex. Styles or sessile 



stigmas, 1 to 4, distinct. Seeds albuminous. 



12. Mtrtales. Flowers regular or almost so, usualh/ hermaphrodite. Pistil syncarpotis, 



inferior (or free in some Rhizophoreae) ; style 1 to 5. Leaves simple. 



Rhizophoreae. Trees or shrubs, often maritime, with opposite leaves. Stipules deci- 

 duous. Flowers regular. Calyx-lobes valvate. Petals often notched or jagged. 

 Stamens twice as many as petals or more. Ovary usually inferior, several-celled, 

 with 2 or more ovules suspended from the apex. Style undivided. Seeds usually 

 solitary, with or without albumen, often germinating while still on the tree. 



Combretaceae. Flowers regular or nearly so. Stamens definite or rarely indefinite. 

 Ovary inferior, 1-celled, with 2 or more (rarely 1) ovules suspended from the apex 

 of the cell. Style undivided. Seed solitary, without albumen. Cotyledons con- 

 Volute. Trees or shrubs, sometimes climbing. Leaves opposite or alternate, with- 

 out stipules. 



Myrtaceae. Flowers regular or nearly so. Calyx-lobes and petals usually imbricate. 

 Stamens indefinite or rarely definite ; anthers opening by longitudinal slits or 

 rarely by terminal pores. Ovary inferior, 2- or more-celled, with 2 or more ovules 

 in each cell, or rarely 1-celled with a single placenta. Style undivided. Seeds 

 without albumen. Cotyledons flat or folded, not convolute. Trees or shrubs, 

 with opposite or alternate often dotted leaves. Stipules none. 



Melastomaceae. Flowers regular or nearly so. Petals twisted. Stamens definite ; anthers 

 opening in terminal pores, very rarely in longitudinal slits. Ovary inferior or 

 enclosed in the calyx, 2- or more-celled, with 2 or more ovules in each cell, or rarely 

 1-celled with a central placenta. Style undivided. Seeds without albumen. Co- 

 tyledons flat or folded, not convolute. Shrubs or rarely trees or herbs with op- 

 posite not dotted leaves. No stipules. 



LytTirarieae. Flowers regular or nearly so. Calyx-lobes valvate. Petals usually crumpled 

 in the bud, or none. Stamens definite or rarely indefinite. Ovary usually enclosed in 

 the calyx-tube, 2 or more celled, with few or many ovules in each cell. Style 

 Undivided. Seeds without albumen. Cotyledons not convolute. Trees, shrubs or 

 herbs with opposite or alternate leaves. Stipules none. 



Onagrarieae. Flowers regular or nearly so, usually 4-merous. Calyx-lobes valvate. 

 Petals imbricate. Stamens definite. Ovary inferior, 2 or more celled, very rarely 

 1-celled. Style undivided. Seeds without albumen. Usually herbs with opposite 

 or alternate leaves. Stipules none. 



13. Pasbiflokales. Flotcers regular or irregular. Stamens perigi/nous (rarely hypogynous). 



Pistil syncarpoits ; ovary free or adnate, l-celled with parietal placentation, or ^-celled 

 itith axile placentation. 



Samydaceae. Flowers regular or nearly so. Petals and sepals almost conform. Stamens 

 indefinite, or alternating with small scales or glands. Ovary 1-celled with parietal 

 placentas. Style entire or branched. Seeds albuminous. Trees or shrubs. Leaves 

 alternate. Stipules small or none. 



Passiflorcae. Flowers regular.- Petals persistent with the calyx-lobes and often resem- 

 bling them. Stamens definite. Ovary stalked, 1-celled, with parietal placentas. 

 Style branched. Seeds albuminous. Climbers with alternate leaves and stipules. 



