JOURNAL OF HORTICULTURE AND COTTAGE GARDENER. 
r 
February 9, 1862. ] 
115 
drainage in winter, and the roots, like those of Cyclamens, were 
kept in a uniform degree of moisture and temperature during the 
period of rest. The long succession of unnatural treatment 
brought on the Potato disease. I should not imagine that twenty 
years’ practice of a wrong principle had much effect yet on the 
Gladioluses ; but let us continue to grow them on the lifting-of- 
the-potato principle, and their day is coming for the dry rot. 
Even now the over-drying of unripened bulbs is a serious cause 
of complaint. The one-half of English-grown Gladioluses are only 
three-parts ripe from the lateness of the present time of planting.” 
Can it be that the “ twenty-years practice of a wrong principle,” 
has had the effect which the veteran anticipated and dreaded, 
and which so many cultivators now deplore?—A Victim. 
CYPRIPEDIUM BARBATUM WARNER!. 
SeveuAL fine varieties of the handsome Cypripedium barbatum 
are now known, such as nigrum, superbum, giganteum, and lati- 
sepalum, which differ from the species and each other chiefly in 
the varying size and shades of the flowers. In all there is the dis¬ 
tinctive purplish brown colour relieved with white ; but the depth 
or brightness of the former and the greater or less proportion of 
Fig. 25.— Ctpripedicm barbatum warxeri. 
the latter furnish characters easily recognised. In the variety 
represented in the woodcut (fig. 25) we have another form with 
handsome flowers of good colour and beautifully variegated foliage ; 
but it is chiefly remarkable for the period at which its flowers are 
produced, as in that respect it is quite distinct from all the other 
forms of the species. It is, in fact, a C. barbatum flowering in 
winter and early spring, and therefore is a welcome addition to 
the few Cypripediums flowering at that time. At the Victoria 
and Paradise Nurseries, Upper Holloway, plants have been in 
flower some time, and the variety shows the characters of its parent 
in the durability of the flowers both on the plant and when cut. 
It was, we understand, first introduced and flowered by Mr. R. 
Warner of Broomfield, Chelmsford, after whom it is named. 
Effects of Smoke on Trees.—A recent investigation by Herr 
Reuss, of the injury done to trees by the smoke of smelting works in 
the Upper Hartz regions, yields the following among other results. 
The smoke is injurious mainly by reason of its sulphuric acid. All 
trees are capable of absorbing a certain quantity of this through the 
leaves, whereby they are rendered unhealthy, and often killed. I heir 
growth in the smoke is irregular and difficult. Leafy trees, especially 
the Oak, resist the smoke better than the Conifer®. No species 
