ANALYTICAL KEY. 25 



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



Tendril-hearing and often succulent herbs. . . . Cucurbitace.e, 186 

 Not tendril-hearing. 



Ovules and seeds more than one in each cell. 



Ovary 1 -celled, many-ovuled from the base. . . Portulacaceje, 97 



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

 Ovary 2 - several-celled. 



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

 Anthers not opening by pores. 



Stamens on a flat disk which covers the ovary. Celastrace-e, 115 

 Stamens inserted on the calyx, 



Eight or four (rarely five) : style 1. . . Onagraceje, 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. Oxagrace^e, 176 

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



Stamens 8 : styles 2 : shrub Hamamelace^e, 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^e, 198 



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. . . . Leguminos^e, 123 

 Ovary 1-celled, with 2 parietal placentae. Adlumia, &c. in Fumariace.e, 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. . . Poltgalacejl, 120 

 Ovary 3-many-celled. 



Stamens free or nearly free from the corolla : style single. Ericace.e, 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. Malvace^:, 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, 307 



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



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



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



Ovary 1-celled : utricle 1-seeded : styles 5. . . Plcmbaginace^e, 312 



