June 20 , 1869. ] 
JOURNAL OF HORTICULTURE AND COTTAGE GARDENER. 
501 
certain, and it is quite impossible that they could have got in that place 
except from the corms that I originally planted there.” Dr. Masters 
observed that bulbs had been known to retain their vitality for long 
periods, and gave as an illustration a certain field which had been 
arable for at least forty years, was laid down to pasture, when the Bee 
Orchis appeared abundantly. Mr. Henslow added that a bulb of 
Urginea scilla, which had been in the museum of St. Bartholomew’s 
Hospital for upwards of twelve years, threw out a leafy shoot of about 
f> inches in length, and then died. 
Lcelia purpurata, dimerous. —Dr. Masters exhibited a drawing of 
this peculiarity, in which the normal trimerous arrangement was reduced 
to a dimerous one. 
Rosa lerberidi/olia .—He also showed specimens of this remarkable 
Rose ; a native of Persia or Afghanistan. Its peculiarities lay in the fact 
that the blades were simple, and in the absence of stipules, unless certain 
vein on the young fronds of Scolopendrium and Polystichum under the 
bellglass. The drops of water did not form on the prothalli or its 
first frondlets, but on these “ there is a curious appearance of brilliant 
golden-looking rings that are scattered in all directions. This moisture 
is formed on the under side, and shines through the semi-transparent 
prothalli and first frondlets. It is apparently a circular drop, the cir¬ 
cumference alone being apparent from the upper side.” The pheno¬ 
menon here described was presumably attributable to water pores, but 
was referred to Prof. Ward for investigation. 
Ratrachnspermum moniliforme. —Mr. Henslow exhibited this plant 
from Cherryhinton, Cambs. 
jOiplosis pyrivora (Riley).—Mr. Maclachlan sent specimens of young 
Pears from Hastings attacked by this insect, which had burrowed 
through the interior, the Pears rotting in consequence. It appears to be 
of not very common occurrence. 
Fig. 81.—ROSE PAUL’S SINGLE WHITE. 
A SINGLE ROSE. 
At the meeting of the Royal Horticultural Society, on June 13th, 
Messrs. Paul & Son of Cheshunt exhibited some plants of a graceful 
single Rose, (fig. 81) which were much admired. It is named Paul’s 
Single White, and is one of the H.P. group; the exhibitor thus 
describes it:— 
“ It is of the hybrid section of which Boule de Neige and others are 
the double forms. It is one of the best shaped of the single Roses, only 
having one defect, that the stamens die off of a blackish colour, but it 
differs from all others of the climbing single Roses in being thoroughly 
autumn as well as summer flowering. 
“It forms one of our best pillar Roses, growing rapidly upward, and 
so lends itself freely to the formation of a pillar or column Rose. We 
thorns near the base of the leaves should prove to be such. The flowers 
were metamorphosed, and would be reported upon by the exhibitor. 
Amaryllis, double.— This had been pronounced to be unique, but Dr. 
Masters exhibited a photograph received from St. Kitts of a double 
.specimen which had occurred there. 
Torreya Myristica. —Dr. Masters showed specimens of both male 
and female plants from the gardens of the Marchioness of Huntly, 
•Orton, Peterborough. 
Asarum. Species. —Mr. Lynch sent specimens of a new and fine 
species A. Hartwegi, Wats ; also the rare A. caudatum and the com¬ 
moner A. canadense and A. europaeum for comparison, all from the 
•Botanic Gardens, Cambridge. A vote of thanks was given to him. 
Waterglands (?) in Ferns .—A communication was received from 
Mr. Lowe giving an account “of some experiments on the formation 
of dew on the veins of young Ferns and on prothalli.” Mr. Lowe 
observed that minute drops of dew appeared at the apex of each 
