2 SYNOPTICAL KEY. 



Division 1. POLYPETALiE. 



Floral enyelopes consisting usually of both calyx and corolla; 

 the petals distinct or rai-ely^uhited with each other, sometimes 

 wanting. '" 



SYNOPTieAfe KEYt6,the.PC)LYPET4L0US; ORT^ERS. 



§ 1. stamens hypogynous, free from the calyx and the super- 

 ior ovary. .,...,,.■.■ - ' 

 * Carpels solitary, or distinct. 



-.- Sepals and petals deciduous, rarely persistent in No. 1. Leaves^ 

 alternate or all radical, rarely opposite or whorled. 



1 KannnculacesB. "Sepals 4 or more : petals as many and alternate with 



them or wanting : stamens usually numerous : carpels one to many : 

 fruit achene? or follicles, or in AcUa a berry. 



2 BerberidacesBi Parts of the-flower in threes, in opposite ranks, distinct, 



(sepals and petals wanting, in ^o?i?i/s) : anthers opening by valves : car- 

 pel solitary, (a berry in Ber6«ris). , . 

 Sepals 3,, petals 6, stamens many, carpels several, soon distinct, becoming 

 linear torulose several-seeded pods : Platystemon in Papaveracesp. ' 

 * * Ovary compound with parietal placentae, or seeds covering the 

 . cell-walls. 



+. Capsule piany-celled, ind'ehiseent : sepals and petals persistent; 



3 Kymphseacese. Parts of the flower iiadefinite, mostly numerous : seeds 



numerous, covering the walls of the cells. Aquatic herbs with entire 

 plain leaves knd solitary flowers. 



4 Sarraceniacese. Sepals and petals 5. Acaulescent marsh perennials 



with odd-shaped leaves and solitary flowers. 



■<- -t- Valves of the capsule separating from the persistent placentae. 

 Sepals and petals persistent. - 



»+ £eeds albuminous. 

 6 Papaveraceae. Sepals 2 or 3, caducous: petals twice as many, alike: 

 stamens numerous: capsule 2-several-valved, one- (rarely several) cell- 

 ed. Herbs, or shrubs with mostly alternate leaves without stipules, 

 and often colored juice. 



6 Fumariacese. Flowers very irregular: sepals 2, small : petals 4, in 2 dis- 



similar pairs : stamens .6, diadelphous : capsule 1-celled, 2-valved, sev- 

 eral to many-seeded. Herbs with alternate leaves without stipules. 



■H- +* Seeds without albumen ; flowers regular. 



7 Cruciferse. Sepals and petals 4: stamens 6, tetradynamous (rarely 4 or 



2) ; capsule 2-ceUed, 2-va,lyed, 2-many-8eeded ; rarely 1-celled and inde- 

 hiscent. Herbs with alternate leaves without stipules. 



8 Capparidaceae. Sepals and petals 4 : stamens !6 or more, nearly equal ( 



capsule 2-valved,' 1-2-celled, 1-several-seeded. Mostly herbs with alter'' 

 nate often stipulate leaves. 



H- + -1- Capsule l-celled, several-carpelled,. the valves not separating, i 

 from the placentse. 



++ Flowers irregular. 

 6 Tiolacew. Sepals and petals 6 : anthers 5, coherent : style 1, clavatfe : 

 capsule 3-valved, many-seeded. Low herbs with alternate or radical 

 stipulate leaves. 



