ANALYTICAL KEY. 25 



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



Tendril-bearing and often succulent herbs. . . . CUCURBIT ACE^J, 186 

 Not tendril-bearing. 



Ovules and seeds more than one in each cell. 



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



Ovary 1-celled, with 2 or 3 parietal placentae. . SAXIFRAGACE^, 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^:, 115 

 Stamens inserted on the calyx, 



Eight or four (rarely five) : style 1. . . ONAGRACE^E, 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 ROSACES, 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 HAMAMELACE.E, 173 



Stamens 4 : style and stigma 1 : chiefly shrubs. CORKAGES, 199 

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



Fruit dry, splitting in two at maturity : styles 2. UMBELLIFERJE, 187 



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



DIVISION n. 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. STTRACACE^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^, 307 



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



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



Ovary 1-celled : pod several - many-seeded : style 1. . PRIMULACE^J, 313 

 Ovary 1-celled : utricle 1-seeded : styles 5. . . PLUMBAGINACE^J, 312 



