ANALYTICAL KEY 21 



Leaves alternate or if opposite with no trace of stipules. 

 Stamens free from the corolla or nearly so. 



Style 1 ERICACEAE, 625 



Style none AQUIFOLIACEAE, 554 



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

 Stamens on the tube of the corolla. 

 Stamens 4. 

 Leafy-stemmed ; leaves opposite ; corolla petaloid 



VERBENACEAE, 688 



Acaulescent ; corolla scarious PLANTAGINACEAE, 743 



Stamens 5 or rarely more. 



Fruit of 2 or 4 seed-like nutlets BORAGINACEAB, 679 



Fruit a few-many-seeded pod. 



Styles 3 (rarely in) Breweria, 669 



Styles 2. 



Pod few(mostly 4)-seeded CONVOLVULACEAE, 668 



Pod many-seeded HYDROPHYLLACEAE, 676 



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 CONVOLVULACEAE, 608 



Seeds many SOLANACEAE, 71J 



O. Stamens fewer than the corolla-lobes. 

 Stamens with anthers 4, in pairs. 



Ovary 2-celled ; cells several-seeded ACANTHACEAE, 742 



Ovary 2-4-celled ; cells 1-seeded VERBENACEAE, 088 



Stamens with anthers only 2 or rarely 3. 



Ovary 4-lobed Lycopus, 709 



Ovary 2-celled, not 4-lobed. 

 Herbs. 



Acaulescent; corolla scarious PLANTAGINACEAE, 743 



Leafy-stemmed ; corolla not scarious Veronica, 726 



Trees or shrubs OLKACEAE, 650 



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 



S. 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. 



