INTRODUCTION. 



ts. 

 USCUTA (p. 306). 



leaves. Stems thread-like, adhering to other plan 

 Cusc 

 ves alternate or radical .... 

 ves opposite 71 

 nbs with evergreen leaves ILBX (p. 97). 

 bs 68 



{Corolla scarious, deeply 4-lobed. Stamens longer than the 

 corolla PLANTAGINEJE (p. 365) 

 Corolla of the consistence of petals. Stamens shorter than 

 the corolla 70 



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



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



-./Leaves entire GENTIANACEJB (p. 299). 



11 \Leaves toothed or cat VERBENA (p. 362). 



,/ Fruit a berry 73 



u \ Fruit a capsule 74 



Shrubs with evergreen leaves ILEX (p. 97). 



Stem or branches herbaceous . . . SOLANACE^E (p. 316). 



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). 



75 



79 



Small procumbent shrubs, with very small evergreen leaves. 



Ovary single LOISELBURIA (p. 281). 



Herbs. Ovary single .... GBNTIANACE^E (p. 299). 



7fl Leaves divided 77 



Leaves undivided or none 78 



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

 MENYANTHES (p. 303). 

 Leaves pinnately cut. Corolla smooth. Erect herb. 

 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. 805). 

 Tall erect plants. Seeds numerous 79 



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



VERBASCUM (p. 324). 

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



in the bud SOLANACE^E (p. 316). 



Stamens 5, free 79 



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



Stamens 2 or 4 81 



Corolla with a spur 82 



Corolla without a spur 83 



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

 Four stamens. Capsule 2-celled . SciiOPiiULAiUNE^K (p. 323). 

 One or two seeds in the ovary or capsule . VEKBENACE^; (p. 362). 

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



ovary 81 



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

 84 1-celled ... . OROBANCHACBJE (p. 319). 



Leaves green. Capsule 2-celled . . RCBOPHULABINEJB (p. 823). 



