KEY TO FEOWERING PEANTS 
315 
123. 
123. 
125. 
125. 
127. 
127. 
129. 
129. 
131. 
131. 
133. 
133. 
Stalks of stam. wooly 
Stalks of stam. not wooly 
Scrophulariacese 
Solanaceae 
124. Trees or woody vines 
124. Eow, yellowish, leafless parasite 
124. Submerged aquatic, with threadlike 
bearing tiny pouches 
124. Ordinary, terrestrial, leafy herbs 
Bignoniaceae 
Orobanchaceae 
Iflts. 
Eentibulariaceae 
125 
Ov. not deeply 4-lobed 126 
Ov. deeply 4“lobed; Ivs. opposite Eabiatae 
126. Ov. 1-celled, 1-seeded; fr. turned downward Phrymaceae 
126. Ov. 2-celled, many seeded Scrophulariaceae 
126. Ov. 2-4 celled, 2-4 seeded; fr. not turned 
downward Verbenaceae 
Tendril bearing herbaceous vine 
Tendrils none 
Cucurbitaceae 
128 
128. Stam. separate from one another 129 
128. Stam. united by their anthers into a ring or 
tube 134 
FIs. in dense heads surrounded by an involucre 130 
FIs. separate, or if crowded, without involucre 131 
130. Anthers parallel and touching; often mon- 
oecious ; ov. 1-celled Compositae 
130. Anthers wide apart; ov. 1-celled Dipsaceae 
130. Anthers wide apart; ov. 2-celled Rulbiaceas 
Stam. free from corolla or nearly so, as many as 
its lobes; stipules none; juice milky Campanulaceae 
Stam. attached to corolla tube 132 
132. Stam. 1-3, fewer than corolla lobes 
132. Stam. 4-5; Ivs. opposite or whorled 
Valerianaceae 
133 
Evs. opposite, without stipules 
Evs. opposite with stipules, or whorled 
Capri foliaceae 
Rubiacese 
134. FIs. separate, witfl evident calyx and corolla Eobeliaceae 
134. ■ FIs. in dense heads surrounded by an in- 
volucre ; calyx reduced to hairs, scales or zero Compositae 
KEY TO MONOCOTYEEDONEAE 
1. FIs. minute, in chaffy bracts or scales without a 
3-parted perianth 2 
1. FIs. not in chaffy bracts 3 
2. Stems hollow, cylindrical; Ivs. 2-ranked; fls. 
2-bracted Gramineae 
2. Stems solid, triangular ; Ivs. 3-ranked ; fls. 
l-bracted Cyperaceae 
3. Aquatic plants 4 
3. Terrestrial plants 8 
4. Eeafless plants. Tiny, floating bodies (1-3 
mm.) Eemnaceae 
4. Eeafy plants 5 
