14 ANALYTICAL KEY, 
Petals of the same number (5) as the persistent sepals, yellow. 
Leaves opposite; sepals equal.......... ce cceceecccccevccccce di ypericacer, 
Leaves alternate; 2 outer sepals smaller...........c00 ceseeeceeees Cistacez, 
2, PERIGYNOUS or EPIGYNOUS (on the free or adnate calyx). 
Leaves opposite, simple; fleshy herbs............ ceesee eee reece .....Ficoidee, 
Shrubs. Sepals and petals numerous...... .. Sevag dae clei’ < Calycanthacee, 
Sepals and petals 4 or 5...........005 cece eee nee eee Saxifragacee, 
Leaves alternate, with stipules............ 2. beck cece cece cece cece eee Rosacee, 
Without stipules; rough herbs........... duataiea'e: daie Loasacee, 
3. ON THE CLAWS OF THE PETALS. 
Stamens free; calyx a cap; petals 4.............. ce cee e cece eens Papaveracee, 
Stamens many united to form a tube; petals 5...... ...... 0ee eee eee Malvacee, 
Stamens 10 to 16 united for half the length; petals 5-8 ...... ...... Styracacee, 
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 united). 
Pistils of the same number, as petals and the sepals. 
Leaves simple entire, fleshy............ cece sc se eee eee ee cee Crassulacee, 
Leaves pinnate; styles united.............. 0.2... ce eee cece eee Geraniacee, 
Pistils not corresponding in number with the petals and sepals. 
Two, united at the base. Trees with compound leaves ......... Sapindacee, 
Herbs with simple leaves........... Saxifragacee, 
Many. Stamens on the receptacle.... 2.2.0... .0. eee eee ee Ranunculacee, 
Stamens on the calyx......... ce cece ee eee ee cece eens Rosacee, 
* * Pistil only one. 
+ Shrubs or trees, 
Style and stigma one. 
Sepals, petals, and-stamens 6 each, in 3’s opposite each other..Berberidacee, 
4 to 5each; leaves 3-foliolate, alternate. .Rutacez, 
5 each; leaves simple, opposite...... Celastracee, 
Calyx 2-lipped; petals unequal; stamens 5-8, exserted..........Sapindacee, 
Calyx 4-toothed; petals 2; stamens 2-4; fruit a samara...... ...... Oleacee, 
Styles or stigmas more than one. 
Styles 2; leaves opposite; fruit 2-winged............ 2... tietaleiess Sapindacee, 
Style 3-cleft; stamens 5, opposite the small petals.............. Rhamnacee, 
Stigmas 3; leaves alternate 3-foliolate..............0seceeees Anacardiacee, 
Stigma 5-lobed; a small shrub with opposite or whorled leaves.....Hricacez, 
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