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Nuphar.] Ill. NYMPH AACE. 17 
Besides the European species, there are but two N. American ones. 
1. N. luteum, Sm. (fig. 35). Yellow Waterlily.—Leaves very nearly 
‘as in Nymphcea alba. Flowers yellow, raised 2 or 3 inches above the 
water, much less expanded and faintly scented, the concave sepals 
assuming a more globular form. Petals and stamens very numerous, 
but scarcely more than half the length of the sepals. Fruit globular, 
crowned by the stigmatic disk, indehiscent or bursting irregularly. 
As common, and in many places more so, than NMymphea alba, with 
the same geographical range; certainly more general in Britain. 1, 
all summer. It varies much in size, and in the number of the stigmatic 
rays. A very small form, with few stigmatic rays, found in some lakes 
of Scotland, has been distinguished under the names of N. pumilum 
and NV. minimum. 
IV. PAPAVERACEA. THE POPPY FAMILY. 
Herbs, with milky juice, alternate or radical leaves, usually 
much divided, and no stipules. Flowers regular. Sepals 2, 
rarely 3, falling off as the flower expands. Petals (in the 
Kuropean genera. 4) crumpled in the bud. Stamens numerous, 
distinct. Ovary really l-celled, with several many-seeded 
parietal placentz ; but these placente often project so far into 
the cavity as sometimes to meet in the centre, dividing the 
ovary into as many imperfect cells. Fruit capsular, opening by 
pores or valves. Seeds albuminous, with a small embryo. 
Papaveracec belong almost exclusively to the north temperate zone, 
in both the Old and New World, a single species, the Mexican Argemone 
or Prickly Poppy, having spread as a weed all over the tropics. The 
combination of 2 sepals and 4 petals easily distinguishes the British 
genera from all other polyandrous plants. 
Ovary and fruit globular or oblong. 
Stigmas radiating on a sessile flat disk ‘ ; : . 1. PAPAVER. 
™ Stigmas supported on a short but distinct style : . 2. MECONOPSIS. 
Ovary and fruit linear. 
Seeds crested. Flowers small, yellow . : 5 4 : . 8, CHELIDONIUM. 
Seeds not crested. 
Sea-coast plant, with thickish leaves and large yellow flowers 5. GLAUCIUM. 
Cornfield weed, with rather large violet flowers ; : 4. RG@MERIA, 
The Californian “schscholtzias, now sO Common in our Comtdeee belong 
to this family. Platystemon, a curious annual from the same country, 
also not unfrequently cultivated, is intermediate, as it were, between 
Papaveracee and Ranunculacec. 
I. PAPAVER. POPPY. 
Capsule globular ovoid or slightly oblong, crowned by a circular disk,. 
upon which the stigmas radiate from the centre, internally divided 
nearly to the centre into as many incomplete cells as there are stigmas, 
and opening by as many pores immediately under the disk. Flowers 
rather large, red, white, or purplish in the British species, or pale yellow 
in some exotic ones. 
A small genus, extending over Europe, Asia, South Africa, and 
B 
