DECEMBER 5, 1874] THE 
GARDENERS CHRONICLE: 721 
fam be grown a good si ee ee 
Tifi Caie ardis, Salisbury. 
Fruit of Hibiscus rosa-sinensis.— W. 
Williamson, of Be lair, oe obligingly wiles me 
that he has young plants ed from Devonshire seed 
ofthis species. Iam now, sane not without hopes 
that I may som rad m of the capsules, W. T. 
in Dyer, Ke [We learn from a most compe- 
tent authority (Dr. i- Mkn that the fruit of this 
plant is is rarely or never produced in India. 
The Best Season for Planting Evergreens,— 
Most gardeners are agree ed that the best season for 
another at any time from the begi nning os autumn until 
late in spring, bag they are moved with good balls 
of earth ;. then the autumn is preferable, 
ted with moisture the perspiration is 
con- 
“Balls of 
ees Some 
with 
balls during a iy facilitated 
= the work, The trees had be ‘cated some distance 
Over very uneven ground ; this, owing to the size and 
it. of the balls, would have been heavy work, had it 
Caria, d e in mu 
than if the weather had been mild, No transplan anted 
m g 
ed in spring, but any ab ihat have little-or no 
wet when planted in spring su uffer conside rably unless 
carpe prevails some time after, It is we ell 
7 ‘greens that nurserymen have cuttings of most ever- 
ay put in in September or ese aiig in general 
cà cuttings are rooted in s com- 
mence growth à a wil ee ai Jee 
autumn 
= ad's quantity of y of Foung roots oral and seid to 
meet ae Pye ® of the plant. There can 
questi oO évergreens in this state being bait 
able = ‘withstand the hot weather and arying winds 
the 
season for planting, there as “othe considerations of 
some weight why fhe pintiig should be done in ge 
autumn. Men er to get after 
spring, indeed, in some places it is exceedingly diffi: 
cult to set men Be spring. Then, again, spring is 
of ason in gardens, and though there 
may be ble ty o of extra men got to do the planting, 
there will still be many of the trees, especially valu- 
able specimens, that will for months afterwards require 
attention in watering, syringing, &c. I would never 
defer the planting of evergreens or any other trees till 
5 ote Bot when I could do it in the autumn, M. San, 
tourton 
Reports of Societies. 
Royal Horticultural: Dec. 2. —W. A, Lindsay, 
Esq; in the chair, Professor Thiselton Dyer, in 
addressing the Fellows, said that since the last meet- 
ing some new information a oe bg ria _kind had 
been published with respect t 
otder to make it intelligible ay "be matter stood he 
ct gs ri described the known bigog f of the qran As 
early as 1846 the main facts about it had bee ae 
out by the Rey, M. J. Batai in me Hee 
Montagne in France. The paper p by nyt 
former ph ee botanists clearly 
isease hich 
means o of its its fine fi nts, the tissues of the 
plant, and tventually reaching the tubers involved the 
whole common destruction, Whe ached the 
surface of the leaves it protru ranches thro 
the stomata, and the nches bore spores of two 
nds, on of erage set free a num tive 
tiara throug water o 
ar He — with considerable Dau” ias 
zoospores, ere was reason to 
believe that in yin d weather they readily found 
way from one m s gei gem leaf to another, 
aod : so became og p N ve agents in propagating 
the disease: The Rev: M: T Berkeley had observ 
these zoos oe ao had not detected their cilia, and 
am Sew therefore, apprehended their full ai 
rst pointed out by Professor De B 
‘Ath point o ur knowledge as the life his 
that "the ey sed another mode of art 
within the tissne eel. the plant attacked. his was a 
e mode, comparable quite strictly with the mode 
which flowering plants produced seed. The 
pouch of this sextial mode of reproduction was a 
spore possessing greater powers o remaining in a 
dormant or resting staté than the other kinds of spores. 
o such “‘ resting Spores,” however, had found 
in Peronospora infestans, although Montagne ha had met 
i ‘bodies which he described under the name 
of Artotrogus, and which it was quite possible might 
turn out to be the missing organs. 
The Royal Agricaltnral Society had fecal m 
elicit soit farther informatio: prize 
d 
justify an. ouncil then determined to 
offer renin for Potatos which should really prove 
to be disease-proof. From a rece: oe t monthly npn ~ 
the Council it appeared that in every case the tria 
made under widely different denen ces in. 
oms, failed: The same report gave 
some o of success which. had 
hitherto. attende sh iatanee of the Counell AE Wat 
rather difficult roire the = precise m meaning of the 
statements. Prof: Dé Bary, ho appeared to 
think that the disease did not start, hai sy from a 
sexual pap — left in a diseased ‘‘set,” and 
with ch in of time deceiaved zoospores by 
which “adjacent plants Fags ager On the 
ntrary; he appeared to have 
that : mycelitm was devel in sof 
la i bers, it did not produce 
spo! at al ce from 
would be, therefore, that as far as planting diseased 
“ sets” concerned no ischief could 
the fu had apparently all but exhausted itself, 
and at Ba rate could not extend to prate plants. 
On the other hand, it must be remembered that Mr. 
Worthington Smith had all but demonstrated that 
tory of 
for many 
p 
Professor De Bary seemed to sge y the fungus 
éxternal to and independent 
found some resting-place 
of the Potato plant, Thi t, by which 
a parasite i to two “hosts,” 
not uncommon amongst fungi. Practical men had 
been of opinion that it was a thing to have Ber- 
bushes in the hedges of corn long 
scientific er had made out the relationship of the 
corn mildew to the ut it was not ve 
probable that "the same kind of thing would hold true 
of Peronospora in og It was more likel that 
its sexual reproductio discovered in the 
tissues of the ‘otato plat itself, and that its life hist 
would be completed in that wa ow 
Peronospora belonged seeme ‘as a whole to have : 
sim eo life-history than that of many other ki 
le] 
na 
It is is onl y tight to say that the recent Part of the 
Journal of the Royal Agricultural Society conta ined à 
paper A e Secretary in which it is suggested that 
over or straw.” Mr. Jenkins inks that nis 
” would istif he i dingy a farm- 
yard manure ‘te tes 
Potato disease, ù y wien a ppli in s 
because the s pecia A on Spi ie 
manuré which ad bee oe ased for litter” { gin The 
opinion that Clover is on nents OF Potato 
disease appeared, howe¥Ge, x ave booi Best Siggestel 
a translation of whose has also 
been Society 
in the recent number of its Jou The yee ` 
determinate in the absence Ol fruit) is not itp ly 
Wh same as that which ee * root-f " in 
y 
larity of these fungi to attack the lowest 7 es a 
lants ; but it is quite og that they may be 
simply mycelium, =e happened to be in the 
soil, and which i well-known hptuir proves 
fatal even to trees OMAR acks their roots. 
It seemed desira bie tp ae the matter so far in 
some detail ; but without further facts it could not be 
said that our present new information gave us, on the 
whole, any very satis yeh ga wie. from 
ublishing the 
and that it did n he part 
the sister Society to entirely ignore both M Mr, Berkeley 
and the Society 
SCIENTIFIC COMMITTEE: =A, Murray, Esq: in 
e chair, The Chairman re that the leaves 
exhibited by Mr. A. Bennett at a previous s mep 
vos aee bya aie caterpillar of 
feat L 
exhibited a nry a of the fruit of 
Papae floribunda, execu rmerod, 
a leaf tof a Vanda with two 
foo of spota on p ron of se ee character, the 
other consisting 0 rings, as described b 
Mr. L in the Seana of the Society for 1 
. - 5. 
j Mr. Murray woah papers Pager oun ayer 
ea 
brief ¢ jesntetal oa on rates ie, peie a it cohen 
creased dryness of the climate Scotland 
h for the prevalence of the 
Q 
—_ 
Dr. > i te 
down from a hei of 14 feet through the centre 
an old Mulberry tree, om i proce og in out 
columns. 
Prof, Dyer exhibited, on the part of Dr. Hooker, 
a portion of the stem of a Calamus, from from Sikkim, and 
in which the sheath of gH leaf had apparently > bien 
injured, and aaa the point of injury a stout 
adventitious bu 
Dr. Denny called attention to the subject of Super- 
cen as alluded to by Mr. | Grieve in our last issue, 
