SUMMARY. vii 



stalked; leaflets serrate, obcordate. Stipules broad and pointed. 

 Stem erect and procumbent, freely branched at base. Dry pastures 

 and hedge-banks. June, July, August. Annual. 



CROSS-LEAVED HEATH, ERICA TETRALIX. Nat. Ord., 

 Ericacece. Calyx of four leaves, hairy. Corolla monopetalous, ovate, 

 the mouth divided into four reflexed segments, marcescent, rose- 

 coloured, drooping. Flowers umbellate-capitate, all inclined one way. 

 Stamens eight. Anthers purple, closing together in a ring, awned 

 at base. Style filiform. Seed-vessel capsular, four-valved, four-celled. 

 Leaves in rings of fours, linear, ciliate, revolute at margins. Stalk 

 shrubby, freely branching, wiry, rough. Heaths and moorlands. 

 July, August. Perennial. 



TOUCH-ME-NOT, IMPATIENS NOLI-ME-TANGERE. Nat. Ord., 

 Balsaminacece. Sepals four or five, one spurred and recurved, very 

 irregular in structure. Petals also variable, yellow, orange-spotted, 

 ordinarily two. Both calyx and corolla coloured. Stamens five, 

 filaments more or less united and very short. Anthers cohering. 

 Ovary five-celled. Stigmas five, sessile. Peduncles many-flowered, 

 slender. Fruit a capsule, having five elastic valves, rolling back sud- 

 denly when touched, when ripe. Leaves exstipulate, alternate, ovate, 

 serrate, petiolate, flaccid. Stem succulent, swelling at the joints, and 

 snapping readily at those points, erect, branching. Moist woods. 

 July, August, September. Annual. 



RED BARTSIA, BARTSIA ODONTITES. Nat. Ord., Scrophu- 

 lariacecc. Calyx tubular, dull red, quadridentate, hirsute, teeth equal 

 and sharp. Corolla monopetalous, ringent, irregular; upper lip con- 

 vex and notched ; lower lip divided into three equal obtuse segments. 

 Stamens four, didynamous, unequal. Style filiform, at first beneath 

 upper lip of corolla, but afterwards longer. Stigma two-lobed. Fruit 

 an oval, oblong, compressed capsule, two-celled, many-seeded. Inflo- 

 rescence, numerous long, erect, racemes, often nodding at summit, and 

 having the blossoms thrown out in one direction. Bracts lanceolate, 

 upright, dull purplish. Leaves opposite, sessile, lanceolate, turning 

 back, slightly serrate, hirsute. Stem upright, freely branching, 

 hirsute, square. Cornfields, roadsides, and waste ground. June, July, 

 August. Annual. 



