GENERAL KEY. via 



Ovules and seeds more than 1 in each cell. 

 Ovary 1-celled. 



Herbs Saxifragaceae in EOSALES 167 



Shrubs Grossulariaceae in BOSALES 167 



Ovary 2-several-celled. 



Anthers opening by pores at the apex; style 1. 



Melastomaceae in MYETALES 230 

 Anthers not opening by pores. 



Stamens on a flat disk which covers the ovary. 



Celastraceae in SAPINDALES 214 

 Stamens inserted on the calyx. 



Eight or 4 (rarely 5) ; style 1. 



Onagraceae in MYETALES 230 

 Five or 10; styles 2-3, distinct. 



Saxifragaceae in EOSALES 167 

 Ovule and seed only 1 in each cell. 



Stamens 2-8 ; styles 1-4 ; herbs or aquatic plants . . MYETALES 230 

 Perfect stamens 4; styles 2; shrub. 



Hamamelidaceae in EOSALES 167 

 Stamens 4 ; style and stigma 1 ; chiefly shrubs. 



Cornaceae IN TJMBELLALES 235 

 Stamens 5; flowers in umbels, or rarely in heads. 



TJMBELLALES 235 



Petals more or less united. Series 2. Gamopetalae. 



A. Stamens more numerous than the lobes of the corolla. 



Ovary 1-celled with 1 parietal placenta. . Papilionaceae in EOSALES* 167 

 Ovary 1-eelled with 2 parietal placentae. 



Adlumia in PAPAVEEALES* 166 

 Ovary 2-celled with a single ovule in each cell. 



Polygalaceae in GEBANIALES* 205 

 Ovary 3-many-celled. 



Stamens free or nearly free from the corolla; style single. 



EEIOALES 244 

 Stamens free from the corolla; style 5. 



Oxalis in GEEANIALES* 007 

 Stamens inserted on the base or tube of the corolla. 



Filaments monadelphous ; anthers 1-celled, kidney-shaped. 



Malvaceae in MALVALES* 220 

 Filaments 1-5-adelphous at base, anthers 2-celled. 



Calyx free from the ovary. . Theaceab in PAEIETALES* 222 

 Calyx coherent with the ovary, or with its base. 



Styracaceae in EBENALES 252 

 Filaments wholly distinct; calyx free, persistent. 



Ebenaceae in EBENALES 252 

 Filaments in pairs at each sinus; anthers 1-celled. 



Capripoliaceae in EUBIALES 298 



B. Stamens (fertile ones) as many as the lobes of the corolla and 



opposite them PEIMTJLALES 250 



C. Stamens as many as the lobes of the corolla and alternate with 



them or fewer. 

 1. Ovary inferior. 

 Tendril-bearing herbs; anthers often united. 



Cucurbitaceae in CAMPANULALES 305 

 Tendrils none. 



Stamens united by their anthers into a ring or tube. 



CAMPANULALES 305 

 Stamens separate, free from the corolla or nearly so, as many as 

 its lobes; stipules none; juice usually milky. 



Campanulaceae in CAMPANULALES 305 



