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leaves lernate, small, ovate, acute, downy and edged with soft hairs 

 bending inwards; the leaf-stalks are also slightly hairy, and flat- 

 tened : the flowers axillary, solitary or two together, rarely three, 

 nodding, on round smooth peduncles, furnished on each side with a 

 very minute stipule, of a fine yellow colour. It is a native of Eu- 

 rope, flowering in May and June. 



There are several varieties, some of which merit a place among 

 flowering shrubs; as that with a purple calyx, and the flowers strongly 

 tinged with orange, as well as that which is very hoary. 



The second species has the branches smooth, flexible, eight or 

 ten feet high ; the lower ones have small tooth leaves, at the end of 

 the shoots, of the same year; the flowers are disposed in a loose 

 spike, are large, yellow, have a strong agreeable odour, appear in 

 July, and in cool seasons continue in succession till September. It 

 is a native of all the Southern countries of Europe. 

 There is a variety with double flowers. 



The third has low sterns, with opposite four-cornered branches : 

 the leaves opposite, sub-sessile : leaflets sessile, thin, subpubescent : 

 the petioles extremely short, but permanent, three-cornered, gibbous, 

 very blunt, thicker than the branchlet to be supported : the flowers 

 terminating, in threes, sessile. In its natural state it is a low shrub; 

 when cultivated it becomes much larger, though rarely exceeding 

 two feet and a half in height, but the branches spread very much 

 and form a large bush ; they are angular and pliable, and always 

 come out by pairs opposite: the leaves narrow and awl-shaped 

 placed round the stalk, spreading out like the points of a star: the 

 flowers in small spikes at the end of the branches, bright yellow, but 

 not more than half the size of the second sort, and without scent. It 

 flowers in June, and is a native of Italy. 



The fourth species has a thick stalk, covered with a rugged bark 

 when old ; it rises eight or nine feet high, sending out many slender 

 rush-like branches of a silvery colour, almost taper, which terminate 

 in very slender bending ends; these have a few narrow spear-shaped 

 leaves on the lower branches : the flowers are produced in very 

 short spikes or clusters on the side of the branches ; are small and 



