XX 11 ANALYTICAL KEY TO FAMILIES OF ANGIOSPERMS, 



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/ Plants small or scaposc; 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 



iii Style or stigma 1. 



/ Corolla plicate; ovary 2-celled, very rarely 3-5 -celled. Solanaceae 808 

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

 ccc Stamens 6-many. 

 d Flowers very irregular. 



e Corolla lip crested; sepals unequal and petaloid Polygalaceae 582 



ee Corolla lip 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 1 in each cell Ebenaceae 721 



gg Style 1 ; ovules 1 or more in each cell. 

 h Stamens more than 16, mostly numerous. 



Symplocaceae (Styracaceae) 721 

 hh Stamens 6-16. 



* Ovules 1 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 DICECIDUS 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 



unsymmetrieal Aceraceae (in Sapindaceae) 607 



ff Leaflets 5-1 1; stamens 2 (4); calyx 4-partcd; wing of fruit symmet- 

 rical Oleaceae 723 



ee Leave- simple. 



/ Leaves entire Santalaceae 345 



ff Leaves fi nely denticulate Oleaceae 723 



bb LEAVES ALTERNATE. 

 c Stem twining ob kecuived and brier-like. 



d Flowers umbellate; monocotyledons Smilaceae (in Liliaceae) 275 



dd Flowers paniculate; dicotyledons Menispermaceae 434 



