

ANALYTICAL KEY 



21 



Leaves alternate or if opposite with no trace of stipules. 

 Stamens free from the corolla or uearly so. 



Style 1 ERICACEAE, 625 



Style none AQUIFOLIACEAE, 554 



Stamens in the notches of the corolla; style 1 DIAFENSIACEAE, 642 

 Stamens on the tube of the corolla. 

 Stamens 4. 

 Leafy-stemmed; leaves opposite ; corolla petaloid 



VKRBENACEAE, 688 

 PLANTAGINACKAE, 743 



BORAGINACEAE, (579 



(rarely in) Breweria, 069 



CONVOLVULACEAE, 6(58 

 HYDROPHYLLACEAE, 676 



Acaulescent; corolla scarious 

 Stamens 5 or rarely more. 

 Fruit of 2 or 4 seed-like nutlets 

 Fruit a few-many-seeded pod. 

 Styles 3 



Styles 2. ' . 



Pod few(mostly 4)-seeded 

 Pod many-seeded 

 Style 1, often branched. 

 Branches of the style (or at least the lobes of 



the stigma) 3. 



Not twining POLEMONIACEAE, 673 



Twining Ipomoea, 670 



Branches of the style or lobes of the stigma 2 



or rarely 4. 

 Seeds few, mostly 4 

 Seeds many 



O. Stamens fewer than the corolla-lobes. 

 Stamens with anthers 4, in pairs. 

 Ovary 2-celled ; cells several-seeded 

 Ovary 2-4-celled ; cells 1-seeded 

 Stamens with anthers only 2 or rarely 3. 

 Ovary 4-lobed 

 Ovary 2-celled, not 4-lobed. 

 Herbs. 



Acaulescent; corolla scarious PLANTAOINAOEAE, 743 



Leafy-stemmed ; corolla not scarious Veronica, 726 



Trees or shrubs OLEACEAE, (550 



N. Corolla irregular S. 

 S. Stamens with anthers 5. 



Stamens free from the corolla; anther-cells opening at the 



apex Rhododendron, 631 



Stamens inserted on the corolla. 



Ovary deeply 4-lobed around the style Echium, 688 



Ovary not deeply lobed, many-ovuled. 



Filaments or some of them woolly Verbascum, 719 



Filaments not woolly Hyoscyamus, 716 



8. Stamens with anthers 2 or 4. 



Ovules solitary in the 1-4 cells. 



Ovary 4-lobed ; style rising from between the lobes LABIATAE, 690 



Ovary not lobed ; style from its apex. 



Ovary 1-celled ; fruit turned downwards PHRYMACEAE, 743 



Ovary 2-4-celled ; fruit not turned downwards VERBENACEAE, 688 

 Ovules 2-many in each cell. 



CONVOLVULACEAE, 668 

 SOLANACEAE, 71 2, 



ACANTHACEAE, 742 

 VERBENACEAE, 688 



Lycopus, 709 



