14 ANALYTICAL KEY. 



Petals of the same number (5) as the persistent sepals, yellow. 



Leaves opposite; sepals equal.... » HyperlcaceEB, 30 



Leaves alternate; 2 outer sepals smaller Cistaoeae, 25 



2. PERIGYNOUS or EPIGYNOUS (on the free or adnate calyx). 



Leaves opposite, simple; fleshy herbs Fiooideae, 63 



Shrubs. Sepals and petals numerous Calycanthaceae, 55 



' Sepals and petals 4 or 5 Saxifragacese, 55 



Leaves alternate, with stipules Rosacese, 49 



Without stipules; rough herbs Loasaceae. 62 



3. ON THE CLAWS OF THE PETALS. 



Stamens free; calyx a cap; petals 4 PapaveraoeSB, 20 



Stamens many united to form a tube; petals 6 MalvaceBB, 31 



Stamens 10 to 16 united for half the length; petals 5-8 Styracacese, 20 



B. Stamens 10 or less. 



1. OVARY or OVARIES SUPERIOR (free from the calyx), or mainly so, but 

 sometimes included in the calyx-tube. 



* Pistils more than one and distinct {not nniied). 

 Pistils of the same number, as petals and the sepals. 



Leaves simple entire, fleshy Crassulaceae, 58 



Leaves pinnate; styles united Geraniaceae, 33 



Pistils not corresponding in number with the petals and sepals. 



Two, united at the base. Trees with compound leaves Sapindaoe ae, 37 



Herbs with simple leaves Sasifragace^, 55 



Many. Stamens on the receptacle Ranunoulaoeae, 16 



Stamens on the calyx Rosaceas, 49 



* * Pistil only one. 



t Shrubs or trees. 

 Style and stigma one. 



Sepals, petals, and stamens 6 each, in 3's opposite each other. . Berberidaceae, 19 



4 to 5 each; leaves 3-foliolate, alternate .. Rutaceae, 34 



5 each; leaves simple, opposite Celaatracefe, 35 



Calyx 2-lipped; petals unequal; stamens 5-8, exserted Sapindaoeae, 37 



Calyx 4-toothed; petals 2; stamens 2-4; fruit a samara Oleaceae, 73 



Styles or stigmas more than one. 



Styles 2; leaves opposite; fruit 2-winged Sapindacese, 37 



Style 3-clef t; stamens 5, opposite the small petals Rhamnaceae, 35 



Stigmas 3; leaves alternate 3-foliolate Anacardiaceae, 38 



Stigma 5-iobed; a small shrub with opposite or whorled leaves Ericaceae. 68 



