monographer of the water-lilies, have continued to 
employ those rendered familar by Smith. We therefore 
follow Conard’s usage. The species of Nuphar now 
figured as NV. polysepalum is the first of its genus from a 
garden standpoint; its flowers are larger than in any 
other, and there are nine petaloid sepals as against six 
in the other species. The anthers develop a rich plum 
colour, and become reflexed, adding to the beauty of the 
flower. For the material of N. polysepalum, which is a 
native of mountain lakes in Colorado, we are indebted to 
Sir F. W. Moore. This material was supplied in 1919 
from a plant purchased on the Continent some fourteen 
years before under another name. It has proved of slow 
growth and hard to establish, the original plant now 
having but two good crowns, though it is a vigorous 
example. It has to be grown in about two feet of 
water with several inches of rich mud. In spring it 
moves even earlier than the common JN. lutewm; the 
young leaves appear above the water in March; the 
flower-buds form in April. The leaves, at first dark 
bronze green with a red flush, stand upright and well 
above the water for a considerable period before they 
eventually bend down to the surface of the pond, while 
those leaves that appear later in the season remain 
upright even longer than those first formed. ~ 
Description.—Herb, aquatic, perennial; rootstock creeping, stout. Leaves 
mostly floating, long-stalked, ovate-reniform, 8-16 in. long, 6-10 in. wide, 
rounded at the tip, margin entire, basal sinus usually open, 3}-4} in. deep, 
glabrous on both surfaces ; lateral nerves many, parallel, spreading, the basal 
diverging flabellately, all forking once or twice towards the margin. Flowers 
solitary, long-stalked, depressed-globose, over 8 in. across, about 2} in. high. 
Sepals 9; outermost 3 very concave, deflexed at the base for about 2 in., then 
ascending, ovate with rounded apex, over 1 in. long, about 1} in. wide, deep 
green outside, yellowish-green within; the remainder wide obovate, 12-2} in. 
long and as much across, more or less broadly clawed, all deep yellow within, 
the intermediate 3 green in the middle with a yellow margin outside, the inner- 
most 3 deep yellow with a reddish tinge outside. Petals many, oblong, 2-3 in. 
long, $-4 in. wide, stout, yellow, with a transverse red band. Stamens very 
many, about 6-seriate, under 1 in. long, reflexed; anthers introrse, red and at 
length purple on the inner face; filaments yellow, as long as or rather shorter 
than the anthers; connective stout, truncate. Pistil 11 iu. long; stigmatic 
disk cup-shaped, nearly 14 in. wide, about } in. deep; stigmatic rays 19-21. 
Fruit an oblong flasklike berry 2}-3 in. long, crowned by the stigmatic disk 
now jin. deep. Seeds many, narrow obovoid, 2 in. long,i\brown, shining. 
Tas. 8852.—Fig. 1, pistil and stamens; 2, petals; 3, stamen, seen from in 
front ; 4, the same, seen from behind; 5, fruit:—all enlarged except 1 and 5, 
which are of natural size, 
