II.-Genera Or Families

1. Ranunculaceous Plants. Ranunculaceae

(1) Banunculus - calyx of five, rarely three, sepals; petals five, the nectariferous pore naked, or covered by a scale; carpels collected into globular or elliptical heads.

2. Fumariaceous Plants. Fumariaceae

(2) Fumaria - calyx of two sepals; petals four, the upper one spurred at the base; fruit indehiscent, one-seeded.

3. Cruciferous Plants. Cruciferae

* Fruit a silique or pod.

(3) Diplotaxis - calyx spreading; pod compressed; seeds ovaloblong in two rows.

** Fruit a silicule or pouch.

(4) Senebiera - pouch kidney-shaped, 2-celled, entire or notched so as to be almost two-lobed; cells one-seeded.

4. Caryophyllaceous Plants. Caryophyllaceae

* Calyx with 2-4 scales or bracts at its base.

(5) Dianthus - calyx tubular, with 2-4 opposite imbricated basal scales; petals five, clawed, crenate or jagged; stamens ten; stigmas two; capsule one-celled; seeds peltate.

** Calyx without basal scales.

(6) Saponaria - calyx tubular, naked at the base; petals clawed, two-cleft; stamens ten; stigmas two; capsule one-celled; seeds globose or reniform.

5. Geraniaceous Plants. Geraniaceae

(7) Geranium - stamens ten; fruit beaked, separating into five one-seeded capsules, each with a long awn, glabrous internally, and ultimately recurved.

(8) Erodium - stamens five fertile; fruit beaked, separating into five one-seeded capsules, each with a long awn, bearded internally, and becoming spirally twisted.

6. Hypericaceous Plants. Hypericaceae

(9) Hypericum - calyx five-parted or five-sepaled; styles three; capsule more or less perfectly three-celled.

7. Malvaceous Plants. Malvaceae

(10) Malva - calyx surrounded by an involucre of three leaves; styles numerous; carpels numerous, one-seeded, arranged in a circle.

(11) Althsea - calyx surrounded by an involucre having from six to nine divisions; fruit one-seeded, collected into a five-lobed head.

8. Leguminous Plants. Leguminosae

* Stamens inonadelphous.

(12) Ulex - calyx coloured, with two bracts, two-lipped; pod ovaloblong, turgid, few-seeded.

(13) Ononis - calyx campanulate, five-cleft, with linear segments; standard large, streaked; keel pointed; pod turgid, ses- sile, few-seeded.

** Stamens diadelphous.

(14) Melilotus - calyx tubular, five-toothed; corolla deciduous; keel simple; wings shorter than the standard; pod longer than the calyx, one or few-seeded, indehiscent.

(15) Trifolium - calyx tubular, five-cleft; corolla persistent; keel shorter than both wings and standard; pod small, in-dehiscent, shorter than the-calyx, 1-2 rarely 3-4-seeded.

9. Crassulaceous Plants. Crassulaceae

(16) Sedum - sepals five, cohering at the base, often foliaceous; petals five, spreading; stamens ten.

10. Saxifragaceous Plants. Saxifragaceae

(17) Parnassia - calyx deeply five-cleft; petals five; stamens five, accompanied by five scales, each having a tuft of globular-headed filaments.