128 
THE FLORIST AND POMOLOGIST. 
[June, 
latest information as to the connection between the Barberry and the rust on com, 
and argues that the idea of the JEcidium of the barberry originating the rust on 
wheat must be erroneous, since the Puccinia of the latter is a totally different 
plant. It is, however, now found the Puccinia does not reproduce itself when sown, 
but gives rise to the JEcidium^ and vice versd^ so that there is good reason to believe 
that the connection is a very close one, the jplcidium being a mere form of the Puc¬ 
cinia. The text is clearly printed in a bold type, but the lettering to the plates would 
have been better if more legible, the more especially as they are not referred to 
in the text. The figures, which consist of from four to six allied subjects grouped 
together on one plate, are unequal in merit, but generally fairly characteristic ; 
there is, moreover, some practical advantage in getting similar species brought 
together into one view. From the popular side of the question, the book may be 
commended as a useful one, and the reissue will afford to many a favourable 
opportunity of acquiring it. 
The cultivation of Orchids, requiring a comparatively low temperature, has 
become so wide-spread, that Mr. Burbidge’s book on Cool Orchids,* as they are 
called, will no doubt find, as it deserves to find, many readers. After a few in¬ 
troductory pages we have chapters on Purchasing Orchids, Potting and Watering, 
Besting Orchids, Specific Variation, Orchid-houses, Importing Orchids, Orchids 
for the Sitting-room, Hybridising Orchids, Propagation of Orchids, Noxious 
Insects, and finally, a Descriptive List of numerous species and varieties adapted 
for this mode of cultivation. The general instructions given under the various 
chapters are full and trustworthy, while in the course of the descriptive list a 
plentiful sprinkling of special information on nice points of cultivation is inter¬ 
spersed. Altogether it is a very good book on a very popular subject. 
CULTUKE OF AZALEA INDICA.—II. 
[FTEB this early potting (see p. 2) the young plants should be placed in a 
moderate heat,—say 55° by night, with a rise of 10° or 15° by day. The 
syringe should be used every afternoon, and the house closed early whilst 
the sun has yet considerable power; this not only economises fire-heat, 
but is much more genial to the plants. If the plants have been affected with 
their usual visitors—thrips—during the season previous, in all probability the 
eggs deposited in the autumn will now come to life, and the insects will commence 
their attacks, breeding on the young leaves. When they are found, the plants 
should be well washed with tobacco-water ; this is safer than fumigation, which 
often injures the young foliage. By the end of May the points of the shoots 
should be pinched out, to induce them to break. Keep the atmosphere moist, and 
continue the use of the syringe, which will cause them to push a second growth, 
and this will result in a considerable gain in size by the end of September, when 
the plants will most likely set flower, and should then have the atmosphere kept 
drier, withholding the syringe, and gradually giving more air, to ripen them 
fully before the advent of short winter days. The temperature should now be 
reduced, so as to allow them a slight rest, but they should never be allowed to 
* Cool Orchids, and How to Grow Them. With a descriptive list of all the best species in cultivation. 
F. W. Burbidge. London: R. Hardwicke. 
By 
