18 
Fifth, sixth class. 
141 (138). Stigs 4. On the inside before each 
ferous scale, div. into 9—13 glandular 
— Styles or stigs 3 or 5 
142. Floral envelope a perianth 
— FI. envelope composed of cal. and cor. 
143. Styles or stigs 3. (FIs white) 
— Styles 5 ..... 
144. Ls opp. ...... 
— Ls altern. ...... 
145. Pets denticulate at the tip. FIs almost 
pet., a neetari- 
hairs 
Parnassia. 87. 
. 142 
Polygonum. 493. 
. 143 
144 
. 147 
. 145 
146 
in an umbel 
Holosteum. 108. 
— Pets 2-partite ..... Stellaria. 109. 
146. Styles filiform. Fr. a 3-valved, many-seeded caps. 
Telephium. 203. 
— Stigs sessile. Fr. 1-seeded, indehiscent Corrigiola. 200. 
147 (143). Ovaries 5. 148 
— Ovary 1 ....... 140 
148. Cal. with 10 divisions. Ls ternate . Sibbaldia. 172. 
— Cal. with 5 divisions. Ls simple, fleshy Sedum. 206. 
149. Ovary 10-celled ...... Linum. 113. 
— Ovary 1-celled. (Comp, some Alsinaeeae. Cl. 10,15.) 
Cl. 6. Hexandria. 
1. Style 1. 2 
— Styles 2—several, or 0 and then the stigs sessile 32 
2. Floral envelope consisting of cal. and cor. (in Peplis 
the cor. decid.). Dicotyledons . . . . 3 
— FI. envelope simple or 0. Monocotyledons . . 7 
3. Prickly shrubs with yellow fls in racemes. Seps6; pets (> 
Berberis. 21. 
— Herbaceous pis without prickles ... 4 
4. Cor. polypet. *) Cal. with 12 teeth ... 5 
— Cor. gamopet. Cal. never having 12 teeth . . 6 
5. Cal. eampanulate. Style very short . Peplis. 194. 
— Cal. cylindric. Style filiform. Fls red. Lythrum. 193. 
6. Stas altern. with the cor.-lobes. Ovary with parietal pla¬ 
centa .Gentiana. 388. 
— Stas opp. the cor.-lobes. Ovary with free central pla¬ 
centae. (Fls yellow) . . . Lysimachia. 469. 
7 (2). Perianth petaloid (not green) . ... 8 
— Perianth herbaceous or scarious or 0 . . . 20 
8. Perianth sup. (Bulbous pis, with radical Is) . O 
— Perianth inf. . 11 
*) Here some Crucifer® may be looked for. See Cl. 15. 
