35. Draba. - Petals entire; filaments simple; pods oblong, flat, seeds in 2 rows, not margined.

36. Erophila. - Petals notched; pods oblong, linear, turgid.

37. Cochlearia. - Petals entire; filaments simple; pouch round, turgid; valves convex, dorsal vein prominent; seeds many.

38. Hesperis. - Stigma 2-lobed, lobes erect, de-current on style; pod 4-sided or flattened, valves keeled, 3-veined; seeds in single row.

39. Sisymbrium. - Stigma blunt; pods round in section or 4-angled; valves convex, 2-nerved; seeds in 1 row, smooth, funicle slender.

40. Erysimum. - Stem leaves not heart-shaped; stigma blunt; pod 4-edged; valves with prominent rib, and 1 longitudinal vein; seeds in 1 row, funicle slender.

41. Conringia. - Like 39, but stem-leaves heart-shaped, clasping; flowers white.

42. Camelina. - Stem-leaves stalkless, auricled; pod sub-oval; valves inflated, with projection adnate to style, 1-nerved; seeds numerous in 2 rows.

43. Subularia. - Aquatic, scapigerous; leaves awl-like; pod oval, flattened, valves boat-shaped; cells 4-seeded.

44. Brassica. - Flowers yellow; calyx erect; pods round in section or angled, beaked; seeds in 1 row, round.

45. Diplotaxis. - Flowers yellow; calyx spreading; pods flattened, seeds in 2 rows, flattened.

46. Capsella (Bursa). - Flowers white; silicle triangular, inversely heart-shaped; valves flattened, keeled; seeds many.

47. Coronopus (Senebiera). - Silicle wrinkled, didymous, not opening, kidney-shaped, entire at end, or notched above and below, 2-jointed, 2-seeded.

48. Lepidium. - Petals equal; silicle round, oblong, entire or notched, valves flat, keeled; cells 1-2-seeded.

49. Thlaspi. - Petals equal; filaments without scales, simple; silicle round, notched, inversely ovate; valves winged; seeds 4-8 in each cell.

50. Iberis. - Petals unequal, 2 outer larger; filaments simple; silicle rounded, notched; valves boat-shaped, keeled, winged at back; seeds 1 in each cell.

51. Teesdalia. - Petals unequal; filaments with scales at base; silicle round or oblong, notched; valves boat-shaped, keeled below, slightly winged above; seeds 2 in each cell.

52. Hutchinsia. - Petals equal; filaments without scales; silicle elliptic, entire, oblong; valves boat-shaped, keeled, not winged at back; seeds 2 in each cell.

53. Isatis. - Silicle indehiscent, I-celled, 1-seeded, flat, oblong; valves keeled, at length separating.

54. Crambe. - Silicle, 2-jointed, lower joint slender, seedless, upper round, 1-seeded.

55. Cakile. - Silicle angular; joints 2, indehiscent, I-seeded, upper deciduous, sessile, ensiform with an erect seed; lower persistent, seedless, or with 1 pendent seed, inversely conical, 2-edged.

56. Raphanus. - Pod jointed, linear, oblong, tapered above, indehiscent, or moniliform and divided into I-seeded cells, lower seedless, 2-valved.

7. Resedaceae

57. Reseda. - Calyx many-partite, sepals divided; petals unequal; stamens 10-40; styles 3-6; fruit I-celled.

8. Cistaceae

58. Helianthemum. - Sepals 5, 2 outer smaller; petals regular, 5, deciduous, white or yellow; stamens numerous, free; capsule 3-valved.

9. Violaceae

59. Viola. - Sepals 5, produced at the base; petals 5, unequal, the lower spurred; stamens 5; anthers united, 2 lower spurred.

10. Polygalaceae

60. Polygala. - Sepals 5, persistent, 2 inner winged, petaloid; corolla irregular, petals 3-5, united, lower keeled; capsule flattened; seeds solitary.

11. Frankemaceae

61. Frankenia. - Style 3-fid, lobes oblong with stigma on inner side; capsule 1-locular, 3-4. valved.

12. Caryophyllaceae

62. Dianthus. - Calyx gamosepalous, with 2 opposite bracts below, 5-toothed; styles 2, free; capsule 4-valved, 1-celled; seeds many, peltate, keeled.

63. Tunica. - Like 62; petals narrowed below, wedge-shaped.

64. Saponaria. - Calyx without bracts below, round in section, 5-toothed; styles 2; capsule 4-valved above, 1-celled; seeds granulate.

65. Silene. - Calyx 5-toothed; styles 3-4; capsule 3- or 6-valved, with 6 apical teeth.

66. Cucubalus. - Calyx 5-toothed; styles 3; capsule a berry, 1-seeded, globular.

67. Lychnis. - Calyx 5-toothed; petals, with scale below; styles 5; capsule 5-celled, opening above by 5 or 10 teeth.

68. Holosteum. - Sepals 5; petals 5, jagged; stamens 3-5; styles 3; capsule 6-valved, cylindrical.

69. Cerastium. - Sepals 5; petals 5, 2-fid; stamens 4-10; styles 4-5; capsule tubular, opening above by 10 teeth.

70. Stellaria. - Sepals 5; petals 5, 2-fid; stamens 10; styles 3-5; capsule globose, 6-10-valved; seeds many.

71. Arenaria. - Sepals 5; petals 5, entire or slightly notched; stamens 8-10; styles 3-5; capsule 3-10-valved.

72. Sagina. - Sepals 5 entire; petals 4-5, entire, or o, shorter than sepals; stamens 4-10; styles 4-5; capsule 4-5-valved; seeds wingless, uniform.

73. Spergula. - Stipules membranous; sepals 5; petals 5 entire, as long as calyx; stamens 5-10; styles 5; capsule 5-valved; seeds many.

74. Spergularia. - Sepals 5, petals 5, entire; stamens 5-10; styles 3 or 5; fruit a capsule 3-valved.

75. Polycarpon. - Sepals keeled on back; petals 5, notched; stamens 3-5; styles 3, united below, short; capsule 1-celled; seeds many.

13. Portulaceae

76. Portulaca. - Calyx 2-fid, falling; petals 4-6, distinct or united below; stamens 8-15 distinct.

77. Claytonia. - Sepals 2, persistent; petals 5, free; stamens 5, opposite and adnate to petals; style 3-cleft; capsule 3-valved, globose; seeds 3.

78. Montia. - Sepals 2, persistent; petals 5, united below; stamens on throat of tube; style short; stigmas 3; capsule 3-valved.

14. Tamaricaceae

79. Tamarix. - Shrub; sepals 4-5; petals 4-5; styles 3; seeds crowned with tuft of hairs.

15. Elatinaceae

80. Elatine. - Aquatic; sepals, petals, stamens and styles 3-4; capsule 3-4-celled.