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 

 .*. i some Mimoseae may be taken for monopetalous. ) 88 (42) LEGUMINOS.E. 

 Ovary 1-celled, with 2 parietal placentae. Adlumia, &c. 26 FUMARIACE-E. 

 Ovary 1-celled with the ovules at the centre or base. 265 STYRACACE^:. 



Ovary 3 - many-celled. 



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

 Stamens inserted on the base or tube of the corolla. 



Filaments monadelphous : anthers l-celled. V- 65 (36) MALVACE.*:. 

 Filaments somewhat monadelphous at the base or 5r 



adelphous : anthers 2-celled. 



Calyx free from the ovary. . ''"' . ' ' \ . 70 (38) CAMELLIACE^B. 



Calyx adherent with the ovary or with its base. 265 STYRACACEJS. 



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



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



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



Ovary 1-celled : pod several - many-seeded : style 1. 270 (62) PRIMULA CE2B. 

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



and 5-cleft. 270 (62) PLUMBAGINACEJE. 



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) CCCURBITACEJE. 

 Tendrils none. 



Stamens united by their anthers into a ring or tube. 



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

 Flowers separate, irregular ; the tube of the corolla 



cleft down one side. , u .., _,.,> ^ .^ ' . . 241 (60) LOBELIACE.E. 

 Stamens separate, and 

 Free from the corolla or nearly so ; leaves alternate, 



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

 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. ;,:-- I? 4 (56) VALERIANACEJE. 



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

 oalyx and corolla ; but it is really apetalous. See pp. Ixxiv, and 360. 



