22 CHORIPETALAE 



232. Ovules basal 233 



Ovules attached to a central placenta 239 



233. Style or sessile stigma I, entire 234 



Styles, stigmas, or stigma-lobes 2 — 6 236 



234. Stamens 10. Calyx closed in bud, subsequently 2 — 3-parted. Flowers 



solitary or in pairs 196. Styracaceae. 



Stamens 5 — 6. Calyx with 3 — 9 imbricate segments 235 



235. Flowers 5-merous, in cymes. Stamens perigynous. Anthers opening 



by longitudinal slits. Style present. Leaves opposite. 



Plenrostylia, 129. Celastraceae. 

 Flowers 6-merous, in racemes. Stamens hypogynous. Anthers opening 

 by valves. Style wanting. Leaves alternate or all radical. 



79. Berberidaceae. 



236. Stamens very numerous. Anthers linear. Style 2-cleft. Trees. Leaves 



alternate, stipulate Lophira, 147. Ochnaceae. 



Stamens i — 20 ; if more than 10, then styles 5 237 



237. Leaves and flowers clothed with glandular hairs ; the former alternate. 



Stamens 10 — 20. Styles 5, free. Ovules upon a long funicle. Seeds 

 albuminous, with a minute embryo. Undershrubs. 



Drosophyllum, 92. Droseraceae. 



Leaves and flowers without glandular hairs. Stamens i — 10. Seeds 



with a large or rather large embryo 238 



238. Leaves alternate. Disc present. Ovules upon a short funicle. Seeds 



exalbuminous 153. Tamaricaceae. 



Leaves opposite. Seeds albuminous ; embryo usually curved. 



75. Caryophyllaceae. 



239. (232.) Ovules pendulous. Style i. Fertile stamens 3 — 6. 



59. Olacaceae. 

 Ovules ascending or horizontal 240 



240. Stamens as many as and opposite the petals. Style simple ; stigma 



entire or obscurely lobed 241 



Stamens as many as and alternate with the petals or fewer or more numer- 

 ous 242 



241. Stamens 3. Leaves opposite. Heirbs. Pelletiera, 191. Primulaceae. 

 Stamens 4^ — 7. Leaves alternate. Shrubs or trees. 190. Myrsinaceae. 



242. Calyx with valvate aestivation. Petals perigynous. Style simple with 



an entire or 2-lobed stigma. Seeds exalbuminous ; embryo straight. 



173. Lythraceae. 



Calyx with imbricate aestivation. Petals hypogynous or nearly so. 



Style simple with a 3-lobed stigma or with several stigmas, or styles 



2 or more. Seeds albuminous ; embryo usually curved. . . . 243 



243. Sepals 2. Stamens 8 — 30. Stigmas or stigma-lobes 3. Leaves alternate. 



73. Portulacaceae. 

 Sepals 4^ — 5. Stamens i — 10. Leaves opposite. 75. Caryophyllaceae. 



