Drosera. | XXXIII. DROSERACED. 173 
each bearing a small gland at the top.. Flower stems slender, erect, and 
glabrous, 2 or 3 to 5 or 6 inches high, the upper portion, consisting of a 
simple or once-forked unilateral raceme, rolled back when young, but 
straightened as the flowers expand. Pedicels nearly a line long, without 
bracts. Calyx near 2 lines. Petals white, rather long, expanding in sun- 
shine. Seeds spindle-skaped, pointed at both ends, the loose testa several 
times longer than the small, ovoid albumen. 
In bogs, and wet, heathy ground, throughout central and northern 
Europe and Russian Asia; from northern Spain to the Arctic regions, 
Abundant in all parts of Britain where there are considerable bogs. 7. 
summer and early autumn. 
2. D. longifolia, Linn. (fig. 391). Oblong Sundew.—Distinguished 
from D. rotundifolia by the leaves much more erect, not half so broad as 
long, and gradually tapering into the footstalk; the flowering stem is also 
usually shorter, and not so slender ; the styles less deeply divided, and the 
seeds are ovoid or oblong ; the testa either close to the albumen, and taking 
its form, or very slightly prolonged at each end. D. intermedia, Hayne. 
In bogs, with D. rotundifolia, but much less generally distributed both 
on the continent of Europe and in Britain. Fl. summer and early 
autumn, 
3. D.anglica, Huds. (fig, 392). Hnglish Sundew.—Very like D. 
longifolia, but the leaves are still longer and narrower, often an inch 
long, without the stalk, the flowers and capsule larger, and the testa of 
the seed is loose and elongated, as in D. rotundifolia, but more obtuse at 
the ends. | 
In bogs, apparently spread over the same geographical range as the two 
other species, but rarer. It is often confounded with D. longifolia, In 
Britain, more frequent in Scotland and Ireland than in England, 7. 
summer and early autumn. 
XXXIV. HALORAGER. THE MARESTAIL FAMILY. 
Aquatic herbs, or in some exotic genera, terrestrial herbs or 
undershrubs. Flowers very small, often unisexual, or incom- 
plete, axillary or in terminal racemes or panicles. Calyx-tube 
adnate to the ovary, the limb of 4 or 2 lobes or quite incon- 
spicuous. Petals 4, 2 or none. Stamens 8 or fewer. Ovary 
inferior, 2- or 4-celled, with 1 pendulous ovule in each cell, or 
rarely reduced to asingle cell and ovule. Styles distinct, as 
many as cells of the ovary, in the British genera reduced to 
sessile stigmas. Fruit small, indehiscent; or divisible into 
l-seeded nuts. Seeds without albumen. 
This Order is dispersed over nearly the whole globe. It was included 
in the first edition of this work in Onagracee@, as a very reduced type. It 
differs, however, essentially in the perfectly distinct styles and other cha- 
or and has now been shown to be much nearer allied to the Saxifrage 
amily. 
