Papaveraceae 49 



Order II. Rhoeadales. Usually herbs. Flowers 

 often racemose, cyclic (except androecium in some 

 cases), usually heterochlamydeous, hypogynous, actino- 

 morphic or zygomorphic. Carpels (co-2). Ovules W\\h 

 two integuments. 



Suborder I. Rhoeadineae. /^/^ec^^rj" usually hetero- 

 chlamydeous. Sepals usually 2. 



Fam. I. Papaveraceae. Herbs, often with white 

 or coloured latex. Floivers hermaphrodite, usually 

 nodding in bud. Sepals 2. Petals usually 4. Stamens 00 , 

 or if only 4-2, then branched from the base. Carpels 

 (2-16) with parietal place?itae and 00 ovules, or with one 

 basal ovule. Fruit usually capsular. Einbryo minute. 

 Endosperm oily. 



Subfamily i. Papaveroideae. Petals without spur. 

 Stamens 00 . Carpels 2-co . 



Tribe i. Chelidonieae. Latex yellowish or reddish. 

 Style ending in two undivided branches which alternate 

 with the placentae. Stigmatic surface within and on the 

 edges of these branches. 



Only British genus : GChelidonium. 



Tribe 2. Papavereae. Latex yellow or white. 

 Stigmas lying above the placentae. 



a. Fruit long, dehiscing to the base. 



Fruit with septum. Glaucium. 



Fruit with no septum. Flowers violet. *Roemeria. 



b. Fruit elongate, ovoid or globose, dehiscent above. 

 Stigmas 4-5, style distinct. Meconopsis. 

 Stigma subsessile, on a disc. Papaver. 



c. 4 



