CULTURE OF THE GENUS HELIANTHEMUM. 
183 
sustained in the first instance, and then excited to produce new systems of life, by 
the agency of what appears a simple and lifeless fluid :— he pauses, reflects, and 
then perceives that life pervades all nature. He becomes wise and humble — discerns, 
but still knows nothing-. 
" Knowledge is proud, that it has learned so much. - 
Wisdom is humhle, that it knows no more." 
CULTURE OF THE GENUS CISTUS. 
The C. ladaniferus and Ledon produce the gum ladanum, but not in such 
quantities as C. Creticus. The resin, which is secreted from the leaves and other 
parts of the shrub, is scraped off by means of a kind of rake, called in Candia 
ergatiri, to which numerous leathern thongs are appended instead of teeth. This 
instrument, being drawn backwards and forwards over the plant from time to time, 
collects the resin. Dioscorides says they gather the ladanum by means of goats, 
which, browsing on the leaves of the shrub, return to the stable with their beards 
loaded with a fat substance, which the peasants rake off with a kind of comb made 
on purpose. 
The species of the genus Cistus, or Rock-rose, deserve to be cultivated in 
every garden for the beauty of their flowers and leaves. The greater part of those 
called frame shrubs will survive a severe winter if planted against a south wall, 
so as to be covered with mats in severe frosts; but. notwithstanding, we would 
recommend a plant of each of these tenderer sorts to be kept in the greenhouse 
during winter, and to be planted out in the spring. They may be either increased 
by seeds or layers, or by ripened cuttings taken off in July or August, which, if 
planted thinly under a hand-glass, will root readily. — Don ; Miller s Dictionary. 
CULTURE OF THE GENUS HELIANTHEMUM. 
The hardy shrubby kinds of this genus are amongst the most beautiful little 
shrubs for ornamenting rock-work. The frame and greenhouse kinds should be 
planted in pots in a mixture of sand, loam, and peat, so that they may be protected 
during winter by a frame : the smaller kinds of these may be planted out on rock- 
work during the summer months. Ripened cuttings will strike freely, if planted 
under a common hand-glass in a sheltered situation in August or September, 
or they may be raised by seeds, which ripen in abundance. The perennial and 
biennial herbaceous kinds should be grown in pots, so that they may be protected 
by a frame during winter, in a mixture of sand, loam, and peat ; they are easily 
increased by seeds. The annual kinds are all beautiful plants, and the seed 
requires to be sown in the open borders ; they prefer a light rich soil. All the 
species of Helianthernum deserve to be cultivated in every collection, on account of 
the elegance and various hues of their blossoms. — Ibid. 
