XX11 ANALYTICAL KEY TO FAMILIES OF ANGIOSPERMS. 



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/ Plants small or scapose; corolla not plicate DIAPENSIACEAE 712 



// Plants tall, twining; corolla plicate SOLANACEAE 808 



kk Stamens free from the corolla ERICACEAE 696 



hh Leaves opposite. 



* Style 3-cleft; ovary 3-celled POLEMONIACEAE 756 



ii Style 4-cleft; ovary 2 -celled LOGANIACEAE 726 



Ui Style or stigma i. 



j Corolla plicate; ovary 2 -eel led, very rarely 3-5 -celled. SOLANACEAE 808 

 jj Corolla not plicate; ovary 4-5 -celled, rarely 2-5 -celled. ERICACEAE 696 

 ccc STAMENS O-MANY. 

 d Flowers very irregular. 



e Corolla lip crested; sepals unequal and petaloid POLYGALACEAE 582 



ee Corolla Up naked; sepals equal, united, not petaloid. 



Trifolium in PAPILIONACEAE (in LEGUMINOSAE) 539 

 dd Flowers regular or nearly so. 

 e Plants without chlorophyll; saprophytes. 



MONOTROPACEAE (in ERICACEAE) 695 



ee Plants with chlorophyll. 

 / Herbs. 



g Leafy dicotyledons. 

 h Stamens alternate with the lobes of the corolla; placentae 2, parietal. 



GENTIANACEAE 728 

 hh Stamens opposite the lobes of the corolla; placenta free-axial. 



PRIMULACEAE 713 

 gg Grass-like monocotyledons; flowers minute in heads. 



ERIOCAULACEAE 236 

 ff Woody plants. 



g Styles 2-6; ovules i in each cell EBENACEAE 721 



gg Style i ; ovules i or more in each cell. 

 h Stamens more than 16, mostly numerous. 



SYMPLOCACEAE (STYRACACEAE) 721 

 hh Stamens 6-16. 



* Ovules i in each cell. 



j Corolla not urn-shaped STYRACEAE 72 2 



jj Corolla urn-shaped ERICACEAE 696 



ii Ovules many in each cell ERICACEAE 696 



A KEY TO THE FAMILIES OF ANGIOSPERMS 

 CONTAINING DICECIOTJS SPECIES. 



A. Woody plants. 



b LEAVES OPPOSITE. 



c PARASITIC ON WOODY PLANTS LORANTHACEAE 344 



cc Not parasitic. 



d Scurfy plants covered with silvery or brown peltate scales.ELAEAGNACEAE 646 

 dd Not peltate-scurfy. 

 e Leaves compound. 

 f Leaflets 3, rarely 5; stamens 5-10; calyx 5-parted; wing of the fruit 



unsymmetrical ACERACEAE (in SAPINDACEAE) 607 



ff Leaflets 5-11; stamens 2 (4); calyx 4-parted; wing of fruit symmet- 

 rical OLEACEAE 723 



ee Leaves simple. 



/ Leaves entire SANTALACEAE 345 



ff Leaves finely denticulate OLEACEAE 723 



bb LEAVES ALTERNATE. 

 c STEM TWINING OR RECURVED AND BRIER-LIKE. 



d Flowers umbellate; monocotyledons SMILACEAE (in LILIACEAE) 275 



dd Flowers paniculate; dicotyledons MENISPERMACEAE 434 



