xlv 



191a. Climbing plant with heart-shape perianth 



2a, in FUMARIACEAE, p. 41. 

 191b. Erect plant, with spreading perianth 



3b, in BERBERIDACEAE, p. 40. 



192a. Corolla composed of united petals 193. 

 192b. Corolla composed of separate petals 208. 



193a. Stamens 2 or 4 SCROPHULARIACEAE, p. 101. 



193b. Stamens 3; climbing vines CUCURBITACEAE, p. 112. 



193c. Stamens 5 194. 



193d. Stamens 6 2a, in FUMARIACEAE, p. 41. 



193e. Stamens 8 22b, in ERICACEAE, p. 85. 



193f. Stamens 10 207. 



193g. Stamens very numerous MALVACEAE, p. 72. 



194a. Ovaries 2; flowers orange-red, in umbels 



7a, in ASCLEPIADACEAE, p. 91. 

 194b. Ovary 1, deeply 4-lobed; flowers in racemes 



BORAGINACEAE, p. 93. 



194c. Ovary 1, not deeply lobed 195. 



195a. Climbing or scrambling vines 196. 

 195b. Not climbing or scrambling 198. 



196a. Flowers about 1 cm. wide 197. 



196b. Flowers 28 cm. wide CONVOLVULACEAE, p. 91. 



197a. Leaves 1 cm. wide or less 2b, in CAMPANULACEAE, p. 112. 

 197b. Leaves 2 cm. wide or more 4a, in SOLANACEAE, p. 100. 



198a. Flowers solitary, either terminal or axillary 199. 

 198b. Flowers in terminal clusters 201. 



199a. Calyx concealed by 2 bracts CONVOLVULACEAE, p. 91. 



199b. Calyx not completely concealed by bracts 200. 



200a. Ovary inferior, appearing as a swelling below the calyx at 

 the base of the flower, 3-celled; stigma 3-lobed 



CAMPANULACEAE, p. 112. 

 200b. Ovary superior, located in the center of the flower 



SOLANACEAE, p. 100. 

 201a. Some or all filaments hairy 202. 

 201b. Filaments not hairy 203. 



202a. Leaves lobed or divided HTDROPHYLLACEAE, p. 93. 



202b. Leaves not lobel 2, in SCROPHULARIACEAE, p. 101. 



203a. Anthers close together, longer than the filaments 



2', in SOLANACEAE, p. 100. 

 203b. Anthers separate from each other 204. 



204a. Leaves compound or very deeply lobed 205. 

 204b. Leaves simple or with shallow lobes only 206. 



