pril 1, 1905 
THE GARDENING WORLD. 
he 0ardeniiig\^/brld. 
NOTICE TO READERS AND 
CORRESPONDENTS. 
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EDITORIAL NOTES. 
Is Carnation Lawson Running Out ! 
A statement was made at the Carnation 
Convention, recently held at Chicago, that 
the well known Carnation Mrs. T. W. Law- 
son was “ running out.” The intention of 
this statement was to convey the idea that 
the variety is already becoming deteriorated 
compared with what it was when put into 
commerce six years ago. The question has 
been put to a large number of Carnation 
growers by the “ Weekly Florists’ Review, 
and replies have come from a number of 
them, showing that the case is not altogether 
determined either one way or another. Some 
of the cultivators admit that the variety does 
not now grow so strongly as it did four 
years ago, but others taking a wider view, 
while stating that they should not be sur¬ 
prised that it was deteriorating, they, at the 
same time show that many cultivators still 
have success with it by giving it proper 
treatment. One writer states that every 
known rule in relation to growth, selection 
and handling of the stock has been violated. 
Other reasons against it are the cultivation 
of it in winter instead of summer, and sub¬ 
jecting it to excessive heat and foul air in 
propagating houses. Several correspondents 
admit that it has received very bad treat¬ 
ment. At the same time, it is stated that 
methods in general are improving, and that 
they may look for a greater longevity 
amongst Carnations than has hitherto 
existed. One cultivator attributes his suc¬ 
cess to the fact that a large portion of his 
cuttings are taken from plants in the field 
quite late in the season, in fact before the 
approach of frost compels him to do so. 
For some time past we have announced that 
this Carnation has been giving rise to sports, 
and we learn from this correspondence that 
some of them are due to deterioration rather 
than otherwise. Possibly, also, some of them 
may be regarded as sports, not in any way 
deteriorated in constitution. 
— o— 
The Jamaica Walking Fern. 
Some of the most familiar walking Ferns 
so-called in this country are Adiantum cauda- 
tum, and Scolopendrium rliizophyllum. To 
Fern lovers these two are well known. Less 
familiar to gardeners is the species native 
to the West Indies figured and described in 
the “ American Botanist ” by the editor, 
who spent some time collecting Ferns in the 
West Indies not very long ago. He tells us 
that several species in Jamaica have the 
walking or travelling habit, but he prefers 
to give the name to Fadyenia prolifera, lie- 
cause U' is the most abundant of the walk¬ 
ing Ferns in Jamaica. It is the only Fern 
of*its kind (or genus) in the world, as no 
other species exactly agreeing with it are 
known. It is a tufted Fern, producing first 
of all a few spathulate blunt fronds, to be 
followed by some others that are narrowed 
both to the base and to the apex. The latter 
indeed is run out to a slender point as m 
the Scolopendrium above mentioned, and at 
this slender tip a young plant is produced 
which gradually roots in the soil while still 
attached to tlie parent plant, and by these 
means alone serves to cover a considerable 
area of ground. The young plants soon at- 
tain full size and repeat the process of tin- 
parent. The two forms of fronds above men¬ 
tioned are barren except from a vegetative 
point of view. In the centre of the tuft 
other fronds arise with long stalks ter¬ 
minated by a narrow blunt frond bearing 
two rows of sori on the back. The form of 
the indusium or covering of these sori shows 
that the Jamaica walking Fern is closely 
allied to Nephrodium or Lastrea. 
Parasites and Insect Pests. 
Mr. G. Compere has been journeying in 
Brazil for the purpose of finding fruit fly 
parasites. He collected a number of them 
in the pupa stage of existence. Arriving in 
Western Australia some of the pup® were 
hatched out immediately and liberated in n- 
fected orchards. Some of them were kept 
in a cold chamber and only allowed to de¬ 
velop recently, but these have died, so that 
it is evident they can only be kept for a 
limited period of time. Others remained 
to be hatched at the time these notes were 
written, but as they had also been kept 
beyond the proper time in a cold chamber, 
it was doubtful if they would survive. Mr. 
Compere has been asked by the Government 
to again visit Brazil and get more of these 
fly parasites with the intention of introduc¬ 
ing them at a more favourable season, so 
that they can be liberated immediately theie 
is a plentiful supply of their natural food. 
London Street Guide. 
One of the chief difficulties which strangers 
have in coming to London is to find theii 
way about without some kind philosopher, 
guide and friend. To some extent at least 
this can be obviated if the intelligent visitor 
can lay his hands upon Lovegrove’s Edition 
of Dicks’ Street Guide to London, which is 
published by John Dicks, Effingham House, 
Arundel Street, Strand, W.C., at the price 
of Id. It contains 129 pp.. each of them 
occupied with three columns of names. The 
first column gives the name of the street 
and postal district, these names in the first 
column being given in alphabetical order: 
the second column gives the nearest mam 
thoroughfare ; and the third column names 
the nearest railway station. Those facts in 
the hands of any intelligent visitor cannot 
be otherwise than of great service. In the 
absence of a map this guide may be carried 
in the pocket and turned to at any time toi 
reference, in order that he or she may be 
brought into the immediate neighbourhood 
of the street wanted, by the readiest means 
of locomotion. Once there any local pas¬ 
senger would be able to give further direc¬ 
tions wanted if necessary. 
