144 SUMMER FLOWERS. 



Flowers irregular or spurred. 



(6) Aquilegia sepals five, petaloid, flat, regular; petals five, 



funnel-shaped, each with a long horn-like basal spur. 



(7) Delphinium sepals five, the upper one with a long basal 



spur ; petals combined into one, which is lengthened into a 

 spur included in the spurred sepal. 



(8) Aconitum sepals five, the upper helmet-shaped, not spurred ; 



two upper petals tubular, on long stalks concealed in the 

 helmet-shaped sepal. 



** Anthers bursting inwardly. 



(9) Pseonia sepals five, persistent ; petals five or more, large, 



red or white. 



2. Nymphaeaceous Plants. NYMPH^EACE^E. 



(10) Nymphsea sepals four, greenish outside ; petals numerous, 



white. 



(11) Nuphar sepals 5-6, yellow ; petals several, much smaller, 



yellow. 



3. Papaveraceous Plants. PAPAVERACE^. 



* Fruit oblong or globular ; stigmas radiate. 



(12) Papaver petals four ; stigmas four to twenty, sessile, con- 



nected, i.e. radiating on a flat sessile disk. 



(13) Meconopsis petals four ; stigmas 5-6, free, supported by 



a short distinct style. 



** Fruit linear; stigmas two-lobed. 



(14) Chelidonium petals four, small; stigmas two; capsule two- 



valved, one-celled, the placentas distinct ; seeds crested. 



(15) Glaucium petals four, large ; stigmas two, sessile ; capsule 



two-valved, two-celled, the placentas connected by a spongy 

 dissepiment ; seeds not crested. 



