13. Saxifragaceous Plants. Saxifragaceae

* Petals five.

(47) Saxifraga - stamens ten all antheriferous; styles two; ovary two-celled, superior or partially inferior.

** Petals none.

(48) Chrysosplenium - ovary adherent to near the top, bearing a one-celled capsule.

14. Rhamnaceous Plants. Rhamnaceae

(49) Rhammis - fruit a small berry or drupe, enclosing three or four small one-seeded nuts.

15. Celastraceous Plants. Celastraceae

(50) Euonymus - capsule with four (rarely 3-5) angles, enclosing as many cells, the valves opening along the middle of each cell; seeds solitary in the cells, enveloped in a coloured fleshy arillus.

16. Portulacaceous Plants. Portulacaceae

(51) Montia - flowers minute, the five petals slightly united, split open in front.

17. Grossulariaceous Plants. Grossulariaceae

(52) Ribes - fruit a berry filled with juicy pulp, in which the seeds are suspended by long stalks.

18. Ericaceous Plants. Ericaceae

(53) Arctostaphylos - calyx and corolla inferior; ovary fivecelled, with one ovule in each cell, becoming a globular berry.

19. Vacciniaceous Plants. Vacciniaceae

(54) Vaccinium - calyx-tube adherent to the ovary; corolla superior; ovary five-celled, with several ovules in each cell, becoming a globular berry.

20. Caprifoliaceous Plants. Caprifoliaceae

(55) Adoxa - calyx two- or three-toothed; corolla with short tube and four or five spreading divisions; fruit a berry.

21. Galiaceous Plants. Galiaceae

(56) Asperula - corolla-tube as long or longer than the lobes; calyx blended with the ovary without a visible border.

22. Valerianaceous Plants. Valerianaceae

(57) Valerianella - fruit crowned by a small cup-shaped or toothed border.

23. Composite Plants. Compositae

* Disk florets tubular and perfect (i. e. both staminate and pistillate), those of the ray ligulate or filiform and either 'pistillate or neuter.

Pappus none; (heads rayed.)

(58) Bellis - ray-florets ligulate, conspicuous; involucral scales nearly equal in length; achenes compressed.

†† Pappus pilose; (heads discoid.)

(59) Senecio - involucre cylindrical or conical, of one row of equal scales, with several small ones at the base; achenes terete,

††† Pappus (of disk-florets) pilose; (heads rayed.) § Florets of the ray with pilose pappus.

(60) Tussilago - ray-florets in many rows; involucres nearly simple; achenes terete.

§§ Florets of the ray without a pappus.

(61) Doronicum - scales of the involucre of two or three rows, nearly equal; achenes terete.

** Florets all perfect (i.e. both staminate and pistillate) and ligulate.

(62) Leontodon - pappus pilose, filiform, soft, deciduous, beak long; involucre of fruit reflexed.

24. Primulaceous Plants. Primulaceae

(63) Primula - leaves all radical; flowers solitary or umbellate, on radical peduncles; ovary superior.