16. Hypericaceae

81. Hypericum. - Flowers yellow; sepals 5; petals 5; styles 3 or 5; capsule 3-celled; seeds numerous.

17. Malvaceae

82. Althaea. - Calyx double; inner 5-fid; outer of 6-9 lobes, united below; styles numerous; carpels in a ring, 1-seeded.

83. Lavatera. - Calyx double, inner 5-fid, outer 3-lobed, united below; styles many; carpels in a ring, 1-seeded.

84. Malva. - Calyx double, inner 5-fid, outer of 3 free segments; carpels in a ring, 1-seeded.

Order 18. Tiliaceae

85. Tilia. - Trees; sepals 5, deciduous; petals 5, with or without a scale below; stamens numerous, free or not; style 1; capsule 1-celled; seeds 1-2.

Order 19. Linaceae

86. Radiola. - Sepals 4, united below, 3-fid; petals 4; stamens 4; styles 4; capsule 8-celled, 8-valved.

87. Linum. - Sepals 5, entire; petals, stamens, styles 5; capsule 10-celled, 10-valved.

Order 20. Geraniaceae.

88. Geranium. - Sepals 5; petals 5; stamens 10, all functional; carpels rounded above, of cocci, 1-seeded; awns not spirally coiled.

89. Erodium. - Sepals and petals 5; stamens 5; staminodes 5; carpels with 2 depressions above; awn spirally coiled.

90. Oxalis. - Sepals 5, united below; petals 5, united below; stamens 10; styles 5; capsule 5-10-valved, cells with 2 or more seeds.

91. Impatiens. - Sepals 3, petaloid, lower hooded, spurred; petals 3, upper symmetrical, lateral unequally 2-lobed; stamens 5; anthers united; capsule explosive; cells 2 or more seeded.

Order 21. Aquifoliaceae

92. Ilex. - Tree; calyx 4-5-fid; corolla rotate, 4-5-fid; stamens and stigmas 4-5; fruit fleshy, in-dehiscent.

Order 22. Celastraceae

93. Euonymus. - Shrub; flowers in cyme; calyx 4-5-lobed; petals and stamens 4-5, on margin of disk, perigynous; ovary 3-5-celled; fruit reddish; seeds with orange aril.

Order 23. Rhamnaceae

94. Rhamnus. - Shrubs; calyx 4-5-cleft, pitcher-shaped; petals 4-5, or o, perigynous; stamens 4-5; fruit fleshy, a berry, 2-4-celled.

Order 24. Aceraceae

95. Acer. - Trees; calyx 5-partite; petals 5; stamens 8; fruit a schizocarp of 2 winged samaras.

Order 25. Leguminosae

96. Lupinus. - Leaves digitate; calyx deeply 2-fid; keel rostrate; style slender, curved; stigma capitate; pod flat.

97. Genista. - Leaves simple; calyx shortly 2-lipped, toothed; style awl-like; stigma terminal; corolla longer than calyx.

98. Ulex. - Leaves simple; calyx deeply 2-lipped, coloured, with small bracts below, nearly as long as corolla; pod thick, seeds few.

99. Cytisus. - Leaves 3-nate; calyx 2-lipped; upper lip 2-fid, lower 3-fid; style long, curved; pod flat.

100. Ononis. - Leaves 3-nate; calyx 5-cleft, segments narrow, linear; keel beaked; stigma terminal; pod thick.

101. Trigonella. - Flowers in short racemes; calyx teeth 5, sub-equal; petals distinct, falling; filaments not adhering to claws of petals; pods flat, slightly curved, longer than corolla, opening; seeds numerous.

102. Medicago. - Flowers in short racemes; calyx teeth 5, sub-equal; keels blunt; filaments slender; pod spiral; seeds numerous.

103. Melilotus. - Flowers in long one-sided racemes; keel free; pods nearly straight, short, not opening; seeds 1-4.

104. Trifolium. - Flowers in head; calyx teeth 5, unequal; keel adnate; petals persistent; filaments enlarged above, adhering to claws of petals; pod short, nearly straight; seeds 1-4.

105. Anthyllis. - Leaves pinnate; calyx tubular, inflated, including pod with 5 unequal teeth; keel not beaked; style slender; stigma capitate.

106. Lotus. - Flowers in umbel; calyx teeth 5, sub-equal, not inflated; keel beaked; pod straight, linear, exserted; seeds several.

107. Astragalus. - Leaves pinnate, no tendrils; calyx with 5 teeth; keel blunt; pod continuous, imperfectly 2-celled, lower suture inflexed.

108. Oxytropis. - Keel beaked, with incurved tip; pod with upper suture inflexed.

109. Coronilla. - Flowers in an umbel; claw of petals as long as calyx; pod long, straight, jointed, 4-angled.

110. Ornithopus. - Flowers in an umbel; pod flat, many-jointed, of I-seeded joints.

111. Hippocrepis. - Flowers in an umbel, yellow; pod flat, of many curved, I-seeded joints.

112. Onobrychis. - Flowers in racemes, pink or red; keel blunt; pod flat, I-celled, I-seeded, 1-jointed, hard.

113. Vicia. - Leaves pinnate, with tendrils; calyx 5-fid; style slender, hairy all over above, or bearded below.

114. Lathyrus. - Leaves pinnate or simple, with tendrils; calyx 5-fid; style flattened upwards, hairy below stigma on upper face.

Order 26. Rosaceae

115. Prunus. - Tree; calyx 5-cleft, falling; petals 5; styles 1-5, united; drupe fleshy, not bursting; stone smooth or furrowed.

116. Spiraea. - Leaves compound; calyx 5-cleft; petals 5; stamens numerous, on disk adhering to calyx; fruit of 3-12 follicles, inserted on calyx-tube.

117. Rubus. - Shrubs; calyx 5-partite, persistent; petals 5; styles numerous; carpels free; fruit an aggegate of numerous succulent drupels, on spongy, conical receptacle.

118. Dryas. - Leaves simple; scape I-flowered; calyx 8-10-cleft, in 1 row; petals 8; stamens numerous; styles persistent, hairy, not jointed, tipping the fruit; fruit of many awned achenes enclosed in top-shaped receptacles.

119. Geum. - Leaves pinnate; calyx 10-cleft in 2 rows (i.e. with epicalyx); stamens numerous; styles jointed, hooked, elongating after flowering; fruit on long fleshy receptacle.

120. Fragaria. - Leaves 3-foliolate; petals 5; stamens numerous; receptacle large, succulent, pulpy, deciduous; fruit of small I-seeded nutlets sunk in receptacle.

121. Potentilla. - Leaves 3- many foliolate; calyx 8-10-partite, with smaller epicalyx; petals 4-5; stamens numerous; style not elongating after flowering, lateral or sub-terminal; fruit on short, dry receptacle.