HELIAN'THEMUM RHODAN'THUM. 
RED-FLOWERED SUN-ROSE. 
Class. Order. 
POLYANDRIA. BIGYNIA. 
Natural Order. 
CISTACE®. 
Native of 
Height. 
Flowers in 
Duration. 
Introduced 
Spain, 
6 inches. 
May, July. 
Perennial. 
in 1800. 
No. 677. 
From the Greek words helios, anthos, sun- 
flower, has been formed the present word, Helian- 
themum. Although it is not so powerfully influ- 
enced by the sun as continually to turn in obedi- 
ence to the apparent daily course of that luminary, 
which has been asserted of some plants, its flowers 
are more dependent on direct exposure to its rays, 
than are those of many similar shrubs. They not 
only open more freely in bright sunshine, but some- 
times in wet and cloudy weather, the flower buds of 
some of the Helianthemums will decay without ex- 
j)anding at all. 
This is a completely hardy little plant, and re- 
markably ornamental on sloping banks, exposed to 
a southerly aspect, or on rock-work. They will 
always be found to luxuriate in a light soil, resting 
on a dry subsoil, if the situation have a favourable 
exposure to the sun. The cultivator may take a 
lesson from nature, by remarking the situation in 
which our English species, the Helianthemum vul- 
gare, flourishes and displays its bright yellow flow- 
ers. It will be found to be a dry southerly or 
eastwardly bank of sandy or loamy soil. It is 
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