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Ixviil INTRODUCTION. 
No leaves. Stems thread-like, adhering to other plants. 
67 CUSCUTA “a 306) 
Leaves alternate or radical. ; : | 
_ \ Leaves opposite 
gg / Shrubs with evergreen leaves. a (p. ‘7 2 
\ Herbs . 
Corolla scarious, ‘deeply 4. lobed. Stamens longer than the 
gg} corolla. ; . PLANTAGINEA (p. 365), 
Corolla of the consistence of petals. Stamens shorter than 
[ the corolla : : é f : ‘ fee 
“0 Leaves narrow, entire . LIMOSELLA (p. 381), 
: ‘ee orbicular, Grenate . . SIBTHORPIA (p. 382). 
ral Leaves entire : ; , . GENTIANACEZ (p. 299). 
‘1\ Leaves toothed orcut.- . .  .°\.  . VERBENA (p. 362). 
zo f Fruit a berry ; ; , aur i iTS 
/“\ Fruit a capsule . : ; : . $f4 
79 Shrubs with evergreen loses | Ibex (p. 97). 
‘°\ Stem or branches herbaceous. : . SOLANACEZ (p. 316). 
“4 ete opposite, entire : ; : . : pre 
Leaves alternate, or none . d : , : Beer 
Trailing plants with evergreen leaves. Two ovaries joining at 
the top into one style. : : VINCA (p. 298). 
753 Small procumbent shrubs, with very small evergreen leaves. 
Ovary single . : : : : . LOISELEURIA (p. 281). 
Herbs. Ovary single . : : GENTIANACEA (p. 299), 
2 f Leaves divided : : Bik: 
/ tieaves undivided or none . : ; : UIhES 
Leaves of 38 leaflets. Corolla hairy within. Aquatic plant. 
a4 MENYANTHES (p. 308). 
Leaves pinnately cut. Corollasmooth. Erect herb. 
POLEMONIUM (p. 304), 
Aquatic plant, with floating orbicularleaves LIMNANTHEMUM (p.304),. 
79 Twining or procumbent plants. Corolla campanulate. Seeds 
2or4ineachcapsule . : . CONVOLVULACE (p. 305), 
Tall erect plants. Seeds numerous . ‘ any, 
Corolla nearly rotate, the upper lobes overlapping the lower ones. 
x9 VERBASOCUM (p. 324), 
‘© Corolla campanulate, or with a distinct tube, the lobes folded 
in the bud : : : ; . SOLANACEZ (p. 316). 
Stamens 5, free . ae rs, 
so| Stamens 3. Small plant with minute white flowers. Mont TTA \P. be 
Stamens 2 or 4 : - : : é 
81 Goren witha spur. : , , : ; : = 
Corolla without a spur ; ' ; : mY ee 
89 Two stamens. Capsule 1- celled. LENTIBULACE (p. 294). 
Four stamens. Capsule 2-celled . SCROPHULARINEZ (p. 323). 
One or two seeds in the ovary or capsule . VERBENACEZ (p. 362), 
88 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 
84 l-celled , .  OROBANCHACEA (p. 319). 
| Leaves ereen. Capsule 2-celled . : . SCROPHULARINEZ (p. 323). 
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