THALICTRUM. 
growing state; and it should be| 
grown ina mixture of equal parts of 
turfy loam, peat, and sand; the 
large, scaly root being placed on the 
surface of the soil, and not buried 
init. The earth in the pot should 
be then watered and kept moist till 
the fibrous roots begin to appear, 
after which less water should be 
given till the slender stem appears, 
when the soil in the pot should be 
watered regularly and abundantly ; 
but no water should ever be poured 
on the scaly root. The flowers are 
diecious, and have never yet pro- 
duced seed in England. The sub- 
stance of the scaly root is farina- 
ceous, and it is said to be used by 
the Hottentots as food. The plant 
has never been propagated in Eng- 
land; all the plants grown in this 
country having been received in 
the state of dry roots from the 
Cape. 
Te'vcrium. — Labidte. — The 
Germander. Hardy, half-hardy, 
and tender, perennial, biennial, an- 
nual, and shrubby plants, the smaller 
kinds of which are suitable for 
rockwork. Some of the kinds are 
showy border flowers; and others 
handsome greenhouse shrubs, par- 
ticularly those that are natives of 
Madeira. T°. Betonicum is perhaps 
ne of the best of these, as it has 
.oose spikes of fragrant crimson 
fiowers. All the species require a 
light rich soil; and they are propa- 
of the roots, according to their re- 
spective kinds. 
Tuaura.—Canne.—T. dealbata 
is an aquatic plant, a native of South 
Carolina, with very curious black 
and white fragrant flowers. It is 
about as hardy as Calla ethidpica, 
and requires the same treatment.— 
See A‘rum. 
Tual'ctrrum— Ranunculicee.— 
Meadow Rue. Perennial plants, 
natives of Europe and North Ame- 
rica, whieh are quite hardy in Bri- 
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391 
Se eee 
gated by seeds, cuttings, or division 
I 
THEA. 
tish gardens. TJ. aquilegifolium 
and its varieties are very showy 
border-flowers ; and TJ. alpinum, 
and some other dwarf species, are 
elegant plants for rockwork. 'They 
all grow freely in any common gar- 
den soil. 
THATCHING is sometimes applied 
as a protection to half-hardy trees 
in the open ground. Many half- 
Fig. 57.—Protettine half-hardy Trees by 
‘hatching. — 
hardy trees and shrubs may be pro- 
tected from any danger from frost 
by laying straw over the roots and 
collar of the stem, and then thatch- 
ing it, as shown in fig. 57. 
Tue'a.—Ternstremidcee.—Ever- 
green half-hardy shrubs, natives of 
China, and nearly allied to the Ca- 
mellia, from which indeed they differ 
only slightly in the capsule. They 
are only half-hardy in British gar- 
dens. Théa Bohéa, indeed, requires 
protection every winter; but T. 
viridis will live in the open air with 
very slight protection (such as laying 
straw, &c., over the roots) in severe 
frosts. The flowers of both kinds 
resemble those of small single white 
Camellias; and they are cultivated 
more from the curiosity which most 
~*~ = a 
perspaey feel to see the plants pro- 
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ek 
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