266 : Composite—Centaurea. 
C. depréssa is a blue-flowered branching species about 18 
inches high ; and C. moschata, Sweet Sultan, and C. Amberbot, 
Yellow Sultan, are Eastern species, the latter with pale yellow 
and the former with purple or white agreeably scented flower- 
heads. These two species are also sold under the name Amber- 
boa. 
Perennial Species. 
3. C. Babylénica (fig. 150).—This attains a height of 6 feet 
or more, and is clothed with a white cottony down. Flower- 
heads yellow, appearing in July. Levant. 
4, C. Ragusina.—This is a frutescent species with silver- 
white pinnate foliage, now very common in gardens, where it is 
employed for contrasting with bright-flowered bedding plants. 
The yellow flower-heads are of medium size and very pretty. 
But it is for the foliage mainly that this and some allied 
species are cultivated. Amongst these we may mention, C. 
dealbata ; C. candidissima, syn. C. Cineraria, with leathery 
pinnate leaves having a large terminal rounded lobe; and C. 
Cleméntei. Other perennial species occasionally seen are 
macrocéphala with simple stems and immense solitary yellow 
flower-heads; and C. orientalis, a more branching plant with 
yellow flower-heads. 
A few other species of this group worthy ofa place in a large 
garden are: Carthamus tinctorius, Safflower, a rigid erect 
annual with leafy involucres and orange-red florets; Carduus 
Maridnus, Blessed Thistle, a more familiar plant, having spiny 
leaves veined with white and drooping purple flower-heads ; 
Sénchus macrénthus, Onopérdon Acdinthiwm, O. hérridum, 
and O. Tawricwm, and Carduus afer, perennials of large size, 
prickly foliage, and large purple flower-heads. 
Sus-Orprr Il.—Labiatifiore. 
Fertile or unisexual florets 2-lipped. We have no really 
hardy species belonging to this division, but there are two or 
three Chilian species of recent introduction which may be re- 
garded as nearly so. Mutisca dectirrens and M. specidsa are 
climbing plants with pinnatifid leaves terminating in a tendril, 
and orange or red flower-heads on long peduncles. Proiistic 
pyrifolia, another climbing species, is remarkable for its beau- 
tiful rosy pink pappus. 
