XXIV ANALYTICAL KEY. 



DIVISION II. MONOPETALOUS ; calyx and corolla both present ; the 

 latter with its petals united more or less into one piece. 



A Stamens more numerous than the lobes of the corolla. 



Ovary 1 -celled with one parietal placenta. (Trifolium and 



some Mimoseat) may be taken for monopetalous.) 88 (42) LEGUMINOSJE. 

 Ovary 1-celled, with 2 parietal placenta. Adlumia, &c. 26 FUMARIACE.SJ. 

 Ovary 1-cellcd with the ovules at the centre or base. 265 STYRACACE^E. 



Ovary 3 - many-celled. 



Stamens free or nearly free from the corolla, distinct. 245 (61) ERICACE.SJ. 

 Stamens inserted on the base or tube of the corolla. 



Filaments monadclphous : anthers 1-celled. . 65 (36) MALVACEAE. 

 Filaments somewhat mouadelphous at the base or 5- 

 adelphous : anthers 2-celled. 



Calyx free from the ovary 70 (38) CAMELLIACEJE. 



Calyx adherent with the ovary or with its base. 265 STYRACACE^E. 



Filaments wholly distinct : calyx free, persistent. . 266 EBENACE^J. 



JB* Stamens (fertile ones) as many as the lobes of the corolla and opposite them.* 



Ovary 5-celled : corolla appendaged with scales inside. 267 SAPOTACE.S. 



Ovary 1-celled : pod several - many-seeded : style 1. 270 (62) PRIMULACE^S. 

 Ovary 1-celled : utricle 1-seeded : styles 5, or only one 



and 5-cleft 270 (62) PLUMBAGINACEJB. 



C. Stamens as many as the lobes of the corolla and alternate with them, or fewer.* 

 * Ovary adherent to the calyx-tube (inferior). 



Tendril-bearing herbs: anthers often united. . 138 (52) CDCURBITACE^S. 

 Tendrils none. 



Stamens united by their anthers into a ring or tube. 



Flowers capitate, the head involucrate. . . 177 (56) COMPOSITE. 

 Flowers separate, irregular ; the tube of the corolla 



cleft down one side 241 (60) LOBELIACE^B. 



Stamens separate, and 

 Free from the corolla or nearly so ; leaves alternate, 



without stipules : juice of the stem milky. 243 (60) CAMPANULACE^S:. 

 Inserted on the corolla, 



Didynamous : ovary 1-celled, with two parietal 



and many-ovuled placentae. . . . (63) GESNERIACE^S. 

 Not didynamous. 



One to three, always fewer than the lobes of the 



corolla 174 (56) VALERIANACE^S. 



* Beware here of Mirabilis .' which seems to be monopetalous, with the ovary between the 

 calyx and corolla ; but it is really apetalous. See pp. Ixiv. and 360. 



