304 



D. Prain — Some additional Papaveracese. 



[No. 3, 



in a revision of the order as a whole. Still even in a partial and more 

 or less cursory review like the present, it is impossible to avoid an 

 allusion to some of them ; a brief note is therefore added to the syste- 

 matic accouut of each genus. 



PAPAVERACE^E. 



Key to the Indian genera {including those newly reported). 



1. Papaver. 



2. Argemone. 



* Capsulses opening by short valves or pores : — 

 f Stigmas radiating on a sessile disc ; (sepals 2, petals 4) 



f f Stigmas at the top of a distinct style : — 



X Stigmas discrete above, patent; sepals 3, petals 6,... 

 X X Stigmas concrete throughout, decurrent; sepals 2, 



petals 4 in 2 pairs, or 5-9 in an imbricate spiral 3. Meconopsis. 



* Capsules dehiscing throughout their length; (sepals 2, 



petals 4) : — 

 + Stigmas sessile : — 



X Stigmas radiating ; valves 3-4, rarely 2 ; fruit 

 without dissepiment 

 X X Stigmas prolonged as 2 horizontal arms; fruit with 

 a pseudo-replum in which the seeds are partially 

 embedded 

 f f Stigmas at the top of a distinct style : — 

 X Stigmas concrete throughout, valves 3-6 

 X X Stigmas discrete above, valves 2 



4. Roemeria. 



5. Glaucium. 



Cathcartia. 

 Chelidonium. 



1. (1.) PAPAVER Linn. 

 Key to the Indian species (incorporating the new forms). 



* Perennial; scapes simple leafless ; flowers orange-yellow ; 



(filaments subulate; capsule hispid; whole plant 



hirsute) ... ■ •• ... ... ... 1. P. nudicaule. 



* Annuals ; stems branching leafy ; flowers scarlet, purple 



or pink : — 



+ Stem-leaves not amplexicaul ; plants usually hispid : — 

 X Capsules hispid; leaves 2-3-pinnatifid ; (flowers 

 scarlet with dark purple eye) : — 



§ Sepals obtuse : filaments dilated upwards ... 2. P. hybridnm. 

 § § Sepals with horn-like subapical processes ; 



filaments filiform ... ... ... 3. P. pavoninum. 



X X Capsules glabrous ; leaves 1-2-pinnatifid; (filaments 

 filiform) : — 

 § Capsules subglobose stalked; lobes of disc 



overlapping ... ... ... 4. P. Bhceas. 



§ § Capsules oblong sessile ; lobes of disc distinct : — 

 ^T Lobes of disc plane and separated by 



shallow Binuses ... ... ... 5. P. dubium. 



% TT Lobes of disc strongly ridged and separated 



by deep divisions (disc stellate) ... 6. P. turbinatum. 



