THE GENERA OF BRITISH PLANTS.

[The numbers of the Genera do not run exactly in numerical order, asthey are intended to correspond with the numbers in the Flora Britannica"f Sir J. E. Smith, for the sake of easy reference to that work.']

Class I. MONANDRIA.

ORDER I. MONOGYNIA.Seeds * naked.

1. Salicornia. Cal. ventricose, entire. Cor. 0. Slam, lor 2. Seed 1,

in the bottom of the calyx.

2. Hippuris. Cal. obsolete. Cor. 0. Seed 1. inferior.

Valeriana 1.Seeds * * capsular.

3. Chaka. Berry many-seeded. Style 0.

4. Zostera. Caps. 1-seeded. SpadLv many-flow, disposed in a dou-

ble row sheathing. Stig. 2.

ORDER II. DIGYNIA.

5. Cau.itriche. Cal. 0. Pet. 2. Seeds 4, naked, marginate on one

side. Ft* some monoecious.

Class II. DIANDRIA.

ORDER I. MONOGYNIA.Fl. inferior, 1-pel. * regular.

6. Lioustrom. Cor. 4-cleft. Berry 4-seeded.

7. Fraxinus. Cor. 0. or 4-parted. Caps, compressed, 2-seeded. FL

some female.

Fl. inferior, \-pel. ** irregular, capsular.9. Veronica, Cor. 4-parted, rotate. Caps. 2-celled.

10. Pinguicula. Cor. ringent, spurred. Caps. 1 -celled. Cal. 5-cleft.

11. Utricblaria. Cor. ringent, spurred. Caps. 1-celled. Cal. 2-leaved.

Fl. inferior, 1-pet. *** irregular : seeds naked.

12. Lycopus. Cor. nearly equal. Stam. distant, simple. Seeds retuse.

13. Salvia. Cm: ringent. F'dam. fixed transversely on a pedicel.

* * * * FL superior.S. Circjea. Cor.2-pet. Cal. 2-leaved. Caps. 2-celled. Seeds solitary.Fl apetalous, ***** or k'pehdled.Salicornia}. Fraxinusl. Lepidwm'i. Coronopus 2.ORDER II. DIGYNIA.i4. Asthoxanthum. Cal. glume 2-valved, 1-Sow. Cor. glume 5-Tslved,awned. Seed i.Bromus 10.

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