ANALYTICAL KEY. l4a 
+ t Herbs. 
t Leaves mostly radical. 
Stamens 5, anthers united; lower petal spurred; style 1..... .......... Violacex, 
Stamens 5, opposite the petals. Sepals 2; style 3-cleft............Portulacacez, 
Sepals united; styles 5.........Plumbaginacee, 
Stamens 10, on the receptacle; stigma 5-lobed........ ...ceecececevees Ericacee, 
Stamens 10, on the calyx; styles 2........ .......... seeceeeeses- Saxifragacez, 
Stamens 6, in 3’s; sepals 2; petals 4, in pairs......... siaisieiarsei slates ...Fumariacez, 
tt Leaves atternate. 
Corolla regular. 
Stigma one, often 2-lobed; stamens 6 (2 and 4)...........0. ......Cruciferee, 
Stigma 1, calyx a striated tube bearing 6 petals.... .......0.0.0- Lythracee, 
Stigmas 5; sepals and petals 5 each; stamens 5-10.............. Geraniacee, 
Styles 3-5; sepals and petals 5 each; stamens 5.............0-2002- Linacee, 
Style 3-cleft; sepals 2; petals 5; fleshy herbs................. Portulacacez, 
Corolla irregular; style one. , 
Stamens 10; fruit a legume............ ..e cee eee eee eee ......leguminose, 
Stamens 5; anthers united; lower petal spurred...... ............ Violacee, 
Stamens 6, in 2 sets; stigma 2-lobed............... a heyeraveverecadicacs Fumariacee, 
Stamens 6-8, united; ovary 2-celled............eccceeee ceeeee Polygalacee, 
tt + Leaves opposite or whorled. 
Styles 2-5; fruit a 1-celled capsule; stamens 10 or 5...... . .....Caryophylacee, 
Styles 3; flowers sessile; stamens 4 to 7.............. cece eee eeee Frankeniacee, 
Styles or stigmas 5; fruit 5 akenes...... 02... 2s ceee eee e eee eee Geraniacee, 
Small white flowers clustered on terminal peduncles........ ...... Saxifragacee, 
Leaves in 3’s; white flowers; petals 6 in 2 sets..................0. Papaveracee, 
Leaves a single pair on the stems; fleshy............. wi Tveatsicnelacts Portulacacez, 
2. OVARY AND FRUIT INFERIOR (adherent to the calyx), or mainly so. 
Shrubs; sepals, petals, and stamens each 4-5; leaves simple. 
Stamens opposite the clawed petals; style 3-cleft.............. Rhamnacee, 
Sepals petaloid; ovary globose; styles 2, or 2-cleft........ .... Saxifragacez, 
ite; flowers in heads with petaloid involucre or in 
a re ae sepals, petals, and Aine 4 each....... 0.2... Cornace, 
Herbs. Sepals and petals each 5; styles distinct; leaves simple....Saxifragacez, 
Parts of the flower mostly in 4’s (rarely in 2’s or 6’s)............. Onagracee, 
Tendril-bearing vines, with prickly fruit...... ejororero mateteeeis ...Cucurbitacez, 
Flowers in umbels; styles 2... ....ccceccsececccccccccsatcrees Umbellifere, 
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