12 PAPAVERACE^E. [Nuphar. 



Stiqmafa radiating. — Name; the Nv/<0aia of the Greeks, so 

 called from its inhabiting the waters, as the Nymphs or Naiads 

 were wont to do. Polyandria. Monogynia. 



1. N. alba, Linn. Great White Water-Lily. Leaves cordate ; 

 stigma of 16, ascending rays. Br. FL I. p. 260. E. FL v iii. 

 p. 14. E.Bot.t. 160. 



Lakes and still waters, frequent. Lough Dan and Glandelough, 

 County of Wicklow ; lakes near Killarney, and in Cunnamara; lakes 

 at Farnham and elsewhere in Cavan, very abundant. Not unfrequent 

 in the northern countries. FL June, July. %.— Leaves floating, a 

 span broad. Flowers splendid, white. In Cunnamara the roots are 

 used for dying wool black. 



2. Nuphar. Smith. Yellow Water-Lily. 



Sepals 5 — 6. Petals 10 — 18, inserted along with the numerous 

 stamens into a disk which surrounds the base of the ovarium. 

 Stigma radiating. De Cand. — Name the Nov0a/> of Diosco- 

 rides, given to this plant. The Arabic name is Noufar ac- 

 cording to Forskal. Polyandria. Monogynia. 



1. N. lutea, Linn. Common Yellow Water-Lily. Leaves cor- 

 date, their lobes approximate ; calyx of 5 leaves ; stigma ex- 

 panded, entire, with from 14 — 20, rays. Br. FL 1. p. 260. E. 

 FL v. iii. p. 15. Nymphoea lutea, Linn. E. Bot. t. 159. 



Lakes and ditches, frequent; all over the country. FL July. %.. 



Leaves heart-shaped, floating. Peduncles round. Flowers about 

 two inches wide, yellow in every part. Calyx leaves much larger than 

 the petals, which are small. 



Grd. 4. PAPAVERACEiE. Juss. Poppy Family. 



Sepals 2, deciduous. Petals 4, rarely 8 — 12 or wanting, ir- 

 regularly plaited before expansion. Stamens distinct, usually 

 numerous : filaments filiform ; anthers 2-celled, opening longi- 

 tudinally. Ovary 1, free. Style short or none, bearing as 

 many stigmas as there are placentae, alternate with them and 

 arranged, when many, in a stellated manner. Fruit 1 -celled, 

 siliquiform, with 2 placenta?, or a capsule with several parietal 

 placentae, and often opening by pores beneath the stigma. 

 Albumen fleshy and oily. Embryo minute, at the base of the 

 albumen, with plano-convex cotyledons. — Annual or perennial 

 herbs or undershrubs, abounding in narcotic juice. Root Jibrous. 

 Leaves alternate, simple or lobed. Peduncles elongated, single- 

 flowered. Flowers white, yellow or red, never blue. 



The plants of this order afford a narcotic juice. Opium is 

 prepared from Papaver somniferum, but the seeds of the plant 

 are mild and stimulent, yielding an oil which is sold as an ar- 

 ticle of food. 



