4 SYNOPTICAL KEY. 



with alternate dissected leaves without stipnles. 



19 Oxaltdaceffi. Flowers Snnerous: sepals imbricated and petals mostly 



convolute in the bud: carpete wmbmed into a S-celled andlew-many- 

 ovuled capsule'. Low herbs with sour jui<!e and alternate or radical 

 trifoliate feaves . 



= ,= = Flowers very irregtilai'. 



20 Balsaminacete. Sepals 5, inibricssted inth^bud: petals 4 united in 



pairs, rarely Sand distinct: fruit a 5-Gelled several-seeded capsule. 



Coarse succulent herbs with entire leaves without stipules. 



« * * * Ovary compound with central plaoentBe: stamens Wne up- 



oious: calyx p,ers)steTitor,thelimfed€!rfaa<Hi«JweUB>Of tttftpyS^yl-few- 

 OTuled: seeds iaosily erect or ascending and albuminous. 



21 Celastraceffi. Flowers perfect, irS-nfieToiis : cwsule 2-5-celted : seeds 



arillate. Shrubs with opposite pinnately veined leaves and no stipules. 

 82 ^bainnaceee. Calyx valvate, the 4 or 5 lobes alternate with as many 

 stamens, deciduous : petals often none: style often 4- or 6- lobed or 

 cleft : fruit a berrv, drupe-like, or dry, 1-4-celled. SJirubs pr trees with 

 simple leaves and small stipules. 



23 VltacesB. Flowers 4-5-merous : calyx minute : petals valvate With a 



stamen at the base of each : fruit a 2-celled, 2-4rseeded berry. Woody 

 vines climliing by tendrils. 



24 Aceraceae. Flowers dioecious or polygamous, often apetalous : styles 



1-3 : fruit, in ours, a double samara or a single ioUicle. Trees or shrubs 

 witji opposite, rarely alternate, leaves and mostly no stipules. 



C& Anacardiaceae. Flowers mostly S-merous : stigmas 3 : fruit a drupelet. 

 Shrubs with milky juice and alternate leaves without stipules. 



§ 2, Stamens perigynous (upon the calyx) or epigynous (upon 

 the top of the ovary}. 



* Ovary superior or nearly so. 

 H_ Carpek solitary or distinct. 



26 Legumlnosge. Flowers paostly irregular : stamens 10, rarely fewer, 

 mostly monadel^hous-Ctill^nited) ■or'diad«lph(^-(^'awr) : carjiel S61i- 

 tary, becoming a legume. HerJasjshriibs.or trees with alternate stipu- 



' late leaves. ■ ' 



27 Amygdalaceae. Carpel solitary or rarely 5, becoming a drupe, entirely 

 free from the calyx ; ovules 2, pendulous : seed usually solitary. 



28 Pomaceae. Carpels 2-5, enclosed in the fleshy calyx-tube, with 2 erect 



ovules in each cell. Trees or shrubs with free stipules. 



29 Bosaceae. Flowers regular, mostly 5-merous, or the stamens usually 



numerous : carpels 1-many, becoming achenes. Herbs shrubs or trees 

 with alternate, mostly stipulate leaves. 



•*- -^ Carpels united or free: seeds mostly albuminouB.: leaves sim- 

 ple; stipules none, or adnate to the base of the petiole. 

 80 Saxifragaceae. Flowers 5-meroiis ; styles or tips of the carpels distinct 

 and soon divergent; fruit a 2-celled capsule. Herbs with mostly alter- 

 nate simple leaves without distinct stipules. 

 31 Hydrancreacete. Flowers 5-merous; fruit a 3-5-celled capsule. Shrubs 



with opposite simple leaves without stipules. 

 32 Ribesiacege. Fiowers 5-merous : fruit a 1-celled berry. Shrubs with 



alternate simple leaves wijih adnate stipules or none. 

 38 Crassalacese, Flowers 3 or 5-merous: stamens nearly hypogynous: 

 carpels ,3-5, becoming l-many-seeded follicles. 



