AN ENCYCLOPADIA 
OF HORTICULTURE. af. — 5 
Ustilago—continued. 
folius, replacing them by a mass of sooty spores. In 
addition to the above, which are all British species, may 
be mentioned: U. Ornithogali, which, in Germany, forms 
swellings, about iin. long, in the leaves of species of 
Ornithogalum and Gagea; and U. Tulipe, which forms 
similar swellings on Tulips. When the spores are ripe, 
the epiderm above the swellings bursts, and exposes the 
brown spores to view. 
d + 
FIG. 145. USTILAGO SEGETUM ON BARLEY, showing (A) Diseased 
Inflorescence, natural size, and (B) Diseased Spikelet, enlarged. 
Treatment. Plants attacked by these Fungi cannot be 
freed from them, as the mycelium is in the tissues; but 
frequently only some of the stems on a plant show their 
presence, and the other parts seem healthy. Such parts 
as do show the Fungi should be removed and burned, 
before the spores ripen, in order to prevent their dis- 
persion. To check the ravages of U. segetum, the Smut 
of corn, the seed, before sowing, is sometimes sprinkled 
with stale urine, and then raked in quicklime till it 
becomes white; or it is steeped in a solution of one 
pound of sulphate of copper in five quarts of water, this 
quantity of solution being sufficient for four bushels of 
wheat. The object aimed at is to kill any spores of 
the Fungi adhering to the seeds, without destroying the 
kms and the above methods are found 
. ORD. Lentibulariee. 
Ustilago—continued. 
to give good results. Perhaps they might prove successful 
with garden seeds also, and might be employed with 
advantage against Urocystis and the other genera of 
Ustilaginei. 
UTANIA. A synonym of Fagrea (which see). 
UTRICLE. A small, bladdery pericarp; any thin, 
bottle-like body. 
UTRICULAR, UTRICULATE, UTRICULI- ` 
FORM, UTRICULOSE. Having, or consisting of, 
utricles ; bladder-like. 
UTRICULARIA (from utriculus, a little bottle; 
alluding to the minute, pitcher-like bodies developed on 
the leaves and roots). Bladderwort ; Hooded Water Milfoil. 
A large genus (nearly 150 species) 
of cosmopolitan, stove, greenhouse, or hardy, floating, 
epiphytal (e.g., montana), or terrestrial herbs. Calyx two- 
parted or deeply two-lobed; corolla spur often incurved; ; 
upper lip ereet, entire, emarginate, or bifid; lower one d 
often large and spreading, three to six-lobed; scape simple 
or slightly branched, one-flowered or bearing a many- 
flowered raceme. Leaves of the floating species many- 
partite, with capillary segments, furnished with minute 
pitchers, which entrap animalcules ; those of the erect 
species entire. U. intermedia, U. minor, U. neglecta, and 
U. vulgaris, are worthy of being grown as curiosities. 
The first thrives in shallow pans of water in which 
sphagnum has been established, and the other three in 
deeper vessels; towards winter, all four form compact, 
round winter buds—at the ends of the branches— which 
fall to the bottom of the water and remain there until 
the following spring. U. Endresii and U. montana do 
best in baskets of fibry peat and sphagnum, suspended ` - 
near the glass. U. Humboldtii and U. reniformis will 
grow in large pots of peat and sphagnum, partially 
plunged in water. U. bifida thrives in a pot of ordinary 
soil, placed a few inches below the surface of a warm 
tank. 
be — (bifid.* f., corolla bg yellow, with a very large ` 
d prominent, hemispheric, orange-yellow palate, the upper ` 
3 lip reflexed, the lower very short and two-lobed; scapes 
numerous, erect, two to five times as long as the leaves. Sep- 
tember. l. erect, lin. to 2in. long, filiform or slightly Ap 
€ bright Uer Hong Kong, 1882. Plant densely tufted. 
reenhouse. (B. M. 6689.) 
U. Endresii (Endres’).* fl. drooping, on very slender pedicels ; 
elle he dish, iio. to tin. lo: ei oes 
n qnd vy Min. to 2in, in diameter, utifull ciliolate 
wered. pon eg L. solitary, lin. to 3in. 1 
lanceolate, A de id tubercles, tin long. 
"a ovoi es 
Costa Rica, 1874. Prices ma AN (B. M. 6656 SYN. U. montana 
gardens), 
en (of 
U: intermedia (intermediate). ° ost yellow upper the UE 
corolla far exceeding the palate; sca SÉ -— tee me 
four-flowered. July to September. . 2 
lin. to Jin. broad, Mount. E T pem ter Pm pne 
subulate, distinctly ciliated ; pitchers on leafless branches, din. 
to lin. lo Stems slender, 4in. to 8in. long. Europe, &c. 
weie En. Ge 127. ) 
U. minor (lesser llow; corolla 4in. with a 
minute, er n. = iR bin. long, bearing wo to six 
flowers, June (^ » September. l lax, gin. to jin. 
bicular, dichotomously multifid ; segments subulate, quite er ez 
pow on the leaf axils, one line ege rape te nay > 
to 10in. long. Europe, &c. eran Ba n E Aum 
U. montana (mountain-lovi: one to four, ljin. in diameter ; 
calyx lobes green, ovate. te, obtuse ; corolla. with 
a yellow te and disk to the lower ; upper lip with 
the lower one twice as 3 Spur à 
incurved horn; scape than the leaves, erect. July. 
1. din. to 6in. long, erect, into sle 
Set 
p 
* 
