78 
THE FLORIST AND POMOLOGIST, 
[ Ariun, 
rgid outline, for contrast with the floating kinds. The flowers are white, and 
produced in whorls on a stem longer than the leaves, and are tripetalous, in form 
and size not unlike those of Tradescantia virgitiica cdha^ and having the males 
and females on the same spike, the former being produced on the upper part on 
longer, the latter below on shorter pedicels. The carpels are produced in spherical 
clusters, and bear a marked resemblance to those of the common Burdock. Being 
a native plant, it is perfectly hardy. 
Sagittaria sagittifolia jiore-pleno. —In the form of its leaves and its general 
aspect this resembles the last, but the flowers, which are white, are perfectly 
double, so that when in full bloom it bears no inapt resemblance to a double 
white hyacinth. This variety is said to be of garden origin, but no one seems to 
know precisely when, where, or how it was produced. That it is not only the 
handsomest of the Arrowheads, but also one of the very best hardy Aquatics we 
have, no one will venture to deny. Being of moderate growth, it is very suitable 
for small ponds or tanks, and should never be omitted from the most select 
collection. The above are the only British representatives of this group ; S. 
latifolia and S. latifolia Jiore-pleno are merely synonyms. 
Canada produces a major variety of the S. sagittifolia, and Pennsylvania a 
minor variety of the same, but unfortunately neither of these is at present pro¬ 
curable in this country. 
Sagittaria rigida. —This is a North American species, and is occasionally met 
with in cultivation. The leaves are not sagittate, but somewhat lanceolate. 
The flowers are produced on branching spikes, and are pure white, and very 
showy. Its native habitat is in the deep, still waters of the Oswego river, where 
it luxuriates to such a degree that it sends its strong petioles up through 
seven feet depth of water ; but it will flourish in a less depth, and is useful 
for large ponds or lakes, where strong-growing sorts are desirable. It is per¬ 
fectly hardy. 
Sagittaria ohtiisa. —A fine species from Virginia, where it grows in shallow 
water. The leaves are about the size of those of Calla palustris, and bluntly 
sagittate,, the scape not branched, the flowers white and dioecious. It is useful 
for ponds of medium size, and quite hardy. 
Sagittaria chmensis. —This is a very distinct and fine species, having broadly 
arrow-shaped leaves, on long footstalks varying from two to three feet, very upright 
in habit, and standing well up out of the water; it produces on a branching 
spike a profusion of rather small, whitish flowers, and is a very useful sort for a 
medium-sized tank in a greenhouse or conservatory, as, being a native of China, 
it will not bear our winters when exposed. 
The Sagittaria angustifolia, from Essequibo, is a white-flowered stove species ; 
but as this, and the ten or twelve species known to exist in North America and 
Canada, are not at present in cultivation in this country, it would be useless to 
enumerate them.— W. Buckley, Tooting. 
