INTRODUCTION. 



fNo leaves. Stems thread-like, adhering to other plants. 

 67 J CUSCUTA (p. 306). 



j Leaves alternate or radical 68 



V.Leaves opposite .71 



'Shrubs with evergreen leaves ILEX (p. 97). 



js 68 



^Corolla scarious, deeply 4-lobed. Stamens Longer than the 

 69 J corolla PLANTAGINE^ (p. 365) 



I Corolla of the consistence of petals. Stamens shorter than 



I the corolla ....... ... 70 



,- / Leaves narrow, entire LIMOSELLA (p. 331). 



'\Leaves orbicular, crenate . . . . SIBTHORPIA (p. 332). 

 71 /Leaves entire ..... . GENTIAN ACE^J (p. 299). 



' \ Leaves toothed or cut VERBENA (p. 362). 



79 /Fruit a berry . . . . . . . . . .73 



'"\Fruitacapsule 74 



73 f Shrubs with evergreen leaves ILEX (p. 97). 



\Stemorbranchesherbaceous . . . SOLANACE^E (p. 316). 

 7 , /Leaves opposite, entire .75 



\_Leaves alternate, or none 76 



''Trailing plants with evergreen leaves. Two ovaries joining at 



the top into one style VINCA (p. 298). 



Small procumbent shrubs, with very small evergreen leaves. 

 Ovary single LOISELEURIA (p. 281). 



^Herbs. Ovary single .... GENTIANACEJE (p. 299). 



Leaves divided 77 



'\ Leaves undivided or none 78 



^Leaves of 3 leaflets. Corolla hairy within. Aquatic plant. 

 77 J MENYANTHES (p. 303). 



| Leaves pinnately cut. Corolla smooth. Erect herb. 



t POLEMONIUM (p. 304). 



{Aquatic plant, with floating orbicular leaves LiMNANTHEMUM(p.304). 

 Twining or procumbent plants. Corolla campanulate. Seeds 

 2 or 4 in each capsule . . . CONVOLVULACEJS (p. 305). 

 Tall erect plants. Seeds numerous 79 



fCorolla nearly rotate, the upper lobes overlapping the lower ones. 



79 J VERBASCUM (p. 324). 



J Corolla campanulate, or with a distinct tube, the lobes folded 



V. in the bud SOLAN ACE^E (p. 316). 



fStamens 5, free 79 



80x Stamens 3. Small plant with minute white flowers. MONTIA (p. 77). 



[Stamens 2 or 4 . . . . .81 



gi r Corolla with a spur .82 



\Corolla without a spur 83 



Two stamens. Capsule 1-celled . LENTIBULACE^S (p. 294). 

 Four stamens. Capsule 2-celled . SCROPHULARINE^B (p. 323). 

 One or two seeds in the ovary or capsule . VERBENACE^J (p. 362). 

 Several seeds in the capsule, or at least several ovules in the 



ovary 84 



Plant leafless, except scales of the colour of the stem. Capsule 



1-celled ... . OROBANCHACE^I (p. 319), 



Leaves green. Capanle 2,celled . , RCROPHULARINE^E (p. 323), 



