POLYPETAL-E. 



Styles 2 or 3: sepals 5: petals 5: stamens 5 or 10: leaves petioled . . Saxifragaceae, 54 



Styles 2 to 5: sepals 5: petals 5: stamens 5: leaves sessile Linacese. 35 



Style 3-cleft: sepals 2: petals 5: fleshy leaves Portulacaceae, 31 



Corolla irregular (petals not all alike): style one. 



Stamens 10, included by the cohering lower pair of petals LeguininosaB, 39 



Stamens 5: anthers united: lower petal spurred Violaceae, 26 



Stamens C, united in 3's: petals 4, in pairs Fumariacese, 19 



Stamens 6, unequal, distinct or 2 united Streptanthus, 22 



Stamens 6 to 8, united: ovary 2-celled: leaves entire Polygalace, 26 



d. Herbs: leaves opposite, simple, except in the last. 



Style 3-cleft: stamens 3 to 5: leaves a single pair Portulacacese, 31 



Style none, stigmas 3: stamens 10 to 12: petals 6: leaves in 3's. .Papaveracese, 18 



Styles 3: flowers sessile: stamens 4 to 7: leaves re volute Frankeniaceze, 27 



Styles 3: flowers in axillary clusters: stamens 3 to 5 Molluyo, G5 



Styles 2 to 5: capsule 1-celled: stamens 10 or 5 Caryophyllacese, 27 



Styles 2: capsule 4-celled: stamens 5 L.inacea9, 35 



Styles 4 or 5: small white flowers in terminal clusters Saxifragacese, 54 



Style 1: stamens on the slightly cohering rotate petals Primulaceae, 76 



Styles and other flower parts each 2 to 5 (stamens rarely twice \ Elatinacese 33 



Styles or stigmas 5: 5 akenes separating when ripe* Geraniace, 36 



2. Ovary and fruit inferior or mainly so. 



Shrubs: sepals, petals and stamens each 4 or 5: leaves simple. 



Stamens opposite the small clawed petals: style 3-cleft Rhamnacese, 37 



Sepals petaloid: ovary globose; styles or stigmas 2 Saxifragaceas, 54 



Sepals, petals and stamens 4 each: the flowers in cymes or inl 



heads with a white involucre / Corn aceae, C6 



Herbs. Sepals 5: petals 5: styles 2 to 5: leaves simple Saxifragaceaa, 54 



Flowers or flower clusters axiljary. 



Flower parts in 2's or 4's, small: aquatic: leaves whorled Halorageae, 59 



Flower parts in 4's (rarely in 2's or G's): stylo 1 Onagracese, 59 



Flowers monoecious : climbing by tendrils Cucurbitacese, G4 



Jftowers in umbels or heads not axillary. 



Flowers in umbels or heads: petals 5: stamens 5. 



Styles 2: fruit dry Umbelliferse, 65 



Styles 2 to 5: fruit juicy Araliacese, 13 



Flowers in a head with involucre of 4 white leaves Cornace, 66 



