” 
700 
THE DICTIONARY 
OF GARDENING, 
THEMISTOCLESIA. The words “Including Cen- 
trostemma”’ should be deleted, This genus is allied to 
Ceratostema. 
THEOPHRASTA. This genus now embraces abont 
seven species. J. densiflora is the correct name of 
T. Jusszi (B. M. 4239); the true Jussiewi is not in eniti- 
yation. T. antioqguiensis' is a synonym of Clavija 
cauliflora, 
THIBAUDIA. See also Agapetes. 
THINOGETON. A synonym of Cacabus (which 
see). 
THISTLE, GOLDEN. This name is also applied 
to Protea Scolymus (which see). 
THLASPI. 7. arabicum is synonymous 
Zthionema Buxbaumii (which see). 
with 
Fic. 711. 
THALICTRUM CHELIDONH. 
THOMAS’S PHOSPHATE or BASIC SLAG, 
of which the following data show the chief constitnents. 
is a manure which has recently come largely into use. 
The figures show that it contains a large proportion of 
lime (which is in a caustic condition), phosphorie acid, 
and iron oxides. It is of various mannrial qualities, 
ranging from abont 12 per cent. of phosphoric acid (equal 
to 26 per cent. of tribasic phosphate of lime) to over 
20 per cent. of phosphoric acid (equal to nearly 44 per 
cent. of phosphate), so that guarantees of quality should 
be carefully considered by the purchaser. y 
SELECTED CONSTITUENTS IN Basic Siac. 
Lime .. 45-04 per cent. 
Magnesia : 620 , 
Phosphoric acid 1g 
Iron oxides A ae Ma nee FOO: * 
Silica Wo. cer} coca REN AB OD! es 
Manganese : no =n a) gonad = 
| 
Thomas’s Phosphate—continued. 
Experiments with Basie Slag have indicated that to 
produce the same effects as superphosphate, at least 
twice the quantity should be applied in the form of slag 
as would suffice in that of superphosphate. Soils poor 
in lime, or those inclined to be wet and sticky, are most 
benefited by Basic Slag, provided that they contain 
plenty of organic matter. Basic Slag is a manure well 
adapted for fruit trees, flowering shrubs, Roses, lawns, 
paddocks, and pastures. It must not be used in com- 
bination with ammonia salt, because it sets the ammonia 
free, and causes a loss of plant-food. It may, however, 
be mixed with nitrate of soda. 
THOMSONIA. JT. Hookeri 
identical with T. nepalensis. 
THORN, EGYPTIAN. See Acacia vera. 
THRIFT, PRICKLY. See Acantholimon. 
THRINAX. To the species described on p. 29, 
Vol. IV., the following should be added. Several others 
are grown in botanical collections. 
is now regarded as 
T. micro (small-fruited). fl., spadix elongated, with 
slender branches. fr. about the size of Peas. /. orbicular, 
coriaceous, pale silvery-green below, much-cleft; petioles 
flexible. Trunk 30ft. high. Florida, 1896. 
T. Morrisii (Morris’s). #., spadix 2ft. long, with nine to 
twelve recurved branches; spathes numerous, tubular. 
7. terminal, sub-orbicular, glaucescent beneath; segments 
about thirty, acuminate, lft. long, conspicuously nerved above, 
the margins yellowish-white. Caudex club-shaped, 3ft. high. 
West Indies. (G. C. 1891, ix., p. 700; 1892, xi., pp. 112-13, 
f. 20, 21.) 
THUJOPSIS. Sve Thuyopsis. 
THUNBERGIA. This genns now embraces about 
seventy-five species. To those described on pp. 32-3, 
Vol. IV., the following shonld be added: 
T. affinis pulvinata (related, cushioned). . ample, sub- 
solitary; corolla violet, the tube yellow within and tinged 
yellow outside, twice as long as the bracts, recurved above 
the base, the lobes ample, rounded, retuse. September. 
1. shortly petiolate, elliptic, acute or obtuse, entire, acute at 
base. Stem quadrangular, rambling, becoming woody and 
very hairy. Zanzibar, 1886. (B. M. 6975, under name of 
T. affinis.) 
T. albiflora (white-flowered). A synonym of 7. alata. 
T. aurantiaca (orange). A variety of 7. alata. 
T. Doddsii (Dodds’). A variety of 7. alata. 
T. grandiflora alba (white). A variety having pure white 
flowers. 1892. 
T. Hookeriana (Hooker's). The correct name of 7. Kirkii. 
THUNDER-PLANT. See Sempervivum tec- 
torum. 
THUNIA. These are most decidedly deciduous Orchids, 
and therefore the cultural requirements are vastly different 
from those afforded to the evergreen section of Phaius, 
under which heading botanists have thought fit to class 
them. The potting compost of good fibrous loam and peat, 
mixed with a liberal sprinkling of chopped sphagnum and 
rough sand, is all that is required. The potting should be 
done as soon as the plants commence growing, in the early 
spring. They should be placed several together in a pot. 
and a stick, sufficiently strong to secure the plants in 
the desired position, should be affixed to each, all dead 
and decaying matter haying previously been removed. 
The pots used should be drained to one-third their depth, 
the remaining space being filled with the potting compost ; 
the plants should be placed in position, and the material 
made firm about the base. Little water will be required 
at first, but as soon as the new roots have got well hold 
of the compost, they require a liberal amount of root- 
moisture. As the flowering season advances, and the pots 
become filled with roots, frequent waterings will be 
essential, and a weak application of liqnid cow-manure 
once or twice a week will be beneficial. During the 
growing season a light position and a hot, humid atmo- 
sphere are most desirable. Occasional syringing over- 
head will be of advantage, and will also aid in checking 
Red Spider and other pests from which they are liable to 
be attacked. When the flowers have been removed, the 
bulbs quickly finish up their growths, and every encourage- 
. 
we 
— "sa "> = = 
