ANAI.TriCAL KKY. 25 



2. Cah/r-tul>e adherent to the ovary, at least to its lower half. 



Tendril-beaiin;; and often succulent herbs. . , . CuciriuuTAA.!;, 18G 

 Not tendiil-bearin;;. 



Ovules and seeds more than one in each cell. 



Ovary 1 -celled, many-ovulcd from the base. . . Portulacace.e, 97 



Ovary l<elled, with 2 or 3 i)arietal plaeentaj. . Saxifkacjace.*:, 163 

 Ovary 2 -several-celled. 



Anthers opening by pores at the apex : style 1. Melasto.mack.k, 181 

 Anthers not opening by jwres. 



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

 Stamens inserted on the caly.x, 



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



Five or ten: styles 2-3, distinct. . . Sa.\ifragace>e, 1G3 

 0\nilcs and seeds only one in each cell. 



Stamens 10 or 5 (instead of many), — rarely in Crataegus, in Uosace.e, 146 



Stamens 2 or 8 ; style I : stigma 2-4-lobed : herbs. O.nagkace^, 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. Cornace.e, 199 

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



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



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



Divisiox II. MONOPETALOUS : calyx and corolla both present ; the 

 latter with its petals united more or less into one piece. 



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



Ovary 1 -celled with one parietal placenta. , . . LKGrMixos.E, 123 

 Ovary 1-cclled, with 2 parietal placenta;. Adlumia, &c. in Fumariace.e, 60 

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



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

 Ovary 3 -many-celled. 



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

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



Stamens inserted on the base or tube of the corolla. 



Filaments monadeli)lions : anthers 1-celled, kidney-shaped. JIai.vace.e, 98 

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



Calyx free from the ovary Cameli.iace.e, 103 



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

 Filaments wholly distinct : calyx free, persistent. . . Euexace.e, 303 



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



Ovary 5-celled : corolla api)endaged with scales inside. Sapotace.e, 308 



Ovary 1-celled : pod several - many-seeded : style 1. . Piu.mi:i,aci;.i:, 313 



Ovarv 1-cclled : uuiclc 1-secdcd: styles 5. . . PLUMBAOiNACEiE, 312 



