Part 126 (1/2)

11. Limosella. Calyx 5-toothed. Corolla open bell-shaped, 5-cleft, nearly regular. Leaves alternate or fascicled, fleshy. Dwarf aquatic or marsh plant.

[*][*] Anther-bearing stamens 2; usually also a pair of sterile filaments.

12. Gratiola. Calyx 5-parted. Stamens included; the sterile pair short or none.

13. Ilysanthes. Calyx 5-parted. Stamens included; the sterile filaments protruded.

14. Micranthemum. Flowers minute. Calyx 4-toothed or cleft. Upper lip of corolla short or none. Filaments with an appendage; sterile pair none.

Dwarf aquatic.

II. RHINANTHIDEae. Under lip or the lateral lobes of the corolla covering the upper in the bud. Capsule commonly loculicidal.

Tribe V. DIGITALEae. Corolla wheel-shaped, salver-shaped, or bell-shaped.

Stamens 2 or 4, not approaching in pairs nor strongly didynamous; anthers 2-celled.

15. Synthyris. Calyx 4-parted. Corolla bell-shaped, 2--4-lobed, irregular. Stamens 2 or 4. Leaves alternate. Flowers racemed.

16. Veronica. Calyx 4-(rarely 3--5-) parted. Corolla wheel-shaped or salver-shaped, almost regular. Stamens 2. Leaves chiefly opposite or whorled. Flowers racemed.

Tribe VI. GERARDIEae. Corolla with a spreading and slightly unequal 5-lobed limb. Stamens 4, approximate in pairs. Leaves opposite, or the uppermost alternate.

[*] Corolla salver-shaped. Anthers 1-celled. Flowers in a spike.

17. Buchnera. Calyx tubular, 5-toothed. Limb of the elongated corolla 5-cleft.

[*][*] Corolla bell-shaped to funnel-form; anthers 2-celled.

18. Seymeria. Stamens nearly equal. Tube of the corolla broad, not longer than the lobe.

19. Gerardia. Stamens strongly unequal, included.

Tribe VII. EUPHRASIEae. Corolla tubular, obviously 2-lipped; the upper lip narrow, erect or arched, enclosing the 4 usually strongly didynamous stamens.

[*] Anther-cells unequal and separated. Capsule many-seeded.

20. Castilleia. Calyx tubular, cleft down the lower, and often also on the upper, side. Upper lip of corolla elongated; the lower short, often very small.

21. Orthocarpus. Calyx tubular-campanulate, 4-cleft. Upper lip of corolla little longer and usually much narrower than the inflated lower one.

[*][*] Anther-cells equal. Capsule many--several-seeded.

22. Schwalbea. Calyx 5-toothed, very oblique, the upper tooth much the smallest.

23. Euphrasia. Calyx 4-cleft. Upper lip of the corolla 2-lobed, and sides folded back. Capsule oblong.

24. Bartsia. Calyx 4-cleft. Upper lip of corolla entire and sides not folded back.

25. Rhinanthus. Calyx inflated, ovate. Capsule orbicular; seeds winged.

26. Pedicularis. Calyx not inflated. Capsule ovate or sword-shaped; seeds wingless.