ANALYTICAL KEY. 25 



2. Calyx-tube adherent to the ovary, at least to its lower half. 



Tendril-bearing and often succulent herbs. . . . Cucurbitaceje, 186 

 Not tendril-bearing-. 



Ovules and seeds more than one in each cell. 



Ovary 1 -celled, inany-ovuled from the base. . . Portulacace^:, 97 



Ovary 1 -celled, with 2 or 3 parietal placentas. . Saxifragace^e, 163 

 Ovary 2 - several-celled. 



Anthers opening by pores at the apex : style 1. Melastomace^:, 181 

 Anthers not opening by pores. 



Stamens on a flat disk which covers the ovary. Celastrace^:, il5 

 Stamens inserted on the calyx, 



Eight or four (rarely five) : style 1. . Onagracejs, 176 



Five or ten: styles 2 - 3, distinct. . . Saxifragace^e, 163 

 Ovules and seeds only one in each cell. 



Stamens 10 or 5 (instead of many), — rarely in Crataegus, in Rosacea, 146 



Stamens 2 or 8 ; style 1 : stigma 2-4-lobed : herbs. Onagrace^e, 176 

 Stamens 4 or 8 : aquatics : styles or sessile stigmas 4. Halorage^:, 174 



Stamens 8 : styles 2 : shrub. . . . . Hamamelaceje, 173 



Stamens 4 : style and stigma 1 : chiefly shrubs. Cornace^e, 199 

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



Fruit dry, splitting in two at maturity : styles 2. Umbellifer^e, 187 



Fruit berry -like : styles 2-5, separate, or united. Araliace^:, 198 



Division IT. 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. . . . Leguminos^:, 123 

 Ovary 1 -celled, with 2 parietal placentas. Adlumia, &c. in Fumariaceje, 60 

 Ovary 1 -celled with the ovules at the centre or base. Styracace^e, 309 



Ovary 2-celled with a single ovule in each cell. . . Polygalace^e, 120 

 Ovary 3 - many-celled. 



Stamens free or nearly free from the corolla : style single. Ericaceae, 286 

 Stamens free from the corolla : styles 5. Oxalis, in Geraniace^e, 105 



Stamens inserted on the base or tube of the corolla. 



Filaments monadelphous : anthers 1-celled, kidney-shaped. Malvaceae, 98 

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



Calyx free from the ovary Camelliace^e, 103 



Calyx coherent with the ovary or with its base. . Styracace^e, 309 

 Filaments wholly distinct : calyx free, persistent. . . Ebenace.e, 30? 



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



Ovary 5-celled : corolla appendaged with scales inside. Sapotace^e, 308 



Ovary 1-celled : pod several - many-seeded : style 1. . Primueace^e, 313 



Ovary 1-celled : utricle 1-seeded : style> 5. . . Plumbagixace^, 312 



