200 
THE ORCHID WORLD. 
[June, 1913. 
Edvvardii, the poIHnated flowers only last a 
few days and then fall off. It seems 
reasonable to assume that the pollen of this 
latter species is unable to produce an enzyme 
suitable to the style of the Odontoglossum, 
and on that account the pollen tubes make no 
headway. 
Some recent experiments, however, seem to 
show that this failure to set a seed pod may 
be overcome by placing other pollen, such that 
is known to be effective, on the style in 
addition to that from Edwardii. An instance 
has occurred where some pollen of crispo- 
Harryanum and Edwardii were both placed 
on the stigma of Odontoglossum crispum, with 
the result that a seed pod containing fertile 
seed was formed, and which, in due course, 
produced numerous plants, the majority 
showing the distinct habit of growth possessed 
by Edwardii. 
When the seed first showed signs of 
germination the natural thought was that the 
pollen of crispo-Harryanum had done all the 
fertilising, but as the seedlings grew and 
the evidence of the Edwardii became apparent 
it appeared fairly certain that a hybrid had at 
last been obtained by crossing crispum with 
Edwardii. 
The only possible means by which this 
strange event has taken place seems to be that 
the pollen tubes of the crispo-Harryanum 
contained, as they usually do, the necessary 
and suitable enzyme to permit them passing 
through the style of the crispum, and that the 
nutritive material formed by them was utilised 
by the Edwardii pollen tubes which were then 
able to grow along the same channel until they 
reached the ovary and effected fertilisation. 
No doubt both the crispo-Harryanum and the 
Edwardii pollen tubes all reached the ovary 
at the same time, but the latter were attracted 
by the ovules more than the former. 
Another interesting case is where Odonto- 
glossum crispum was pollinated with another 
crispum, and, at the same time, with the 
pollen of Miltonia vexillaria. It is rarely that 
crispum can be hybridised with vexillaria, but 
in this instance all the seedlings show 
unmistakable signs of vexillaria. 
ORCHID SALES. 
ON Wednesday, May 21st, Messrs. 
Protheroe and Morris held a sale of 
Orchids by order of Messrs. Sander 
and Sons. The following figures are of 
interest : — Cymbidium erythrostylum, 4^ 
gns. ; C. Alexanderi, 3^ gns. ; Cattleya 
Mossiae Wagneri, 22 gns. ; C. Hardyana 
albens, 25 gns. ; C. Mulleri, Si gns. ; Odonto- 
glossum cnspum igneum, 5 gns. ; O. lucidum, 
4^ gns. ; O. Bronze Prince, 8 gns. ; O. crispum 
Captivation, 17 gns. ; O. luminosum, /I gns. ; 
C. Alcibiades Illustrious, 27 gns. ; C. Mrs. F, 
Sander, 7I gns. ; C. Dreadnought, 10 gns. ; 
and Ljelio-Cattleya Cora, 7j gns. Imported 
plants of Vanda Sanderiana sold well, the 
highest figure being 23 gns. for a selected 
piece. Imported PhaLenopsis amabilis, several 
on a native stick, went for 4 gns. 
On the same day, the following were 
included from the collection of Mr. R. 
Brooman- White : — Odontoglossum crispum 
Wilson, 16 gns. ; O. Wilckeanum The Kaiser, 
30 gns. ; O. xantholeuca, 45 gns. Also a 
selection of plants from the collection of Mrs. 
Norman Cookson : — Odontioda Bradshawias 
Cookson's var., 18 gns.; O. ardentissimum 
Norman Cookson, 30 gns. ; O. a. Peetersii, 
8^ gns. ; and O. crispum Fearnley Sander, 
30 gns. Duplicates from the collection of Mr. 
H. T. Pitt were as follows : — Odontoglossum 
crispum F. K. Sander, 75 gns. ; O. Uro- 
Skinneri album, 1 5 gns. ; O. c. Lindenii, 
22 gns. ; and Cattleya gigas, 10 gns. 
On Thursday, May 22nd, a sale of plants 
by order of M. Jules Hye de Crom : — 
Odontoglossum Dame Blanche, 36 gns. ; O. 
crispum Pittianum, 56 gns. ; Cattleya Warneri 
alba, 10 gns.; C. Trianse alba, 7 gns.; and 
Miltonia vexillaria G. D. Owen, 75 gns. From 
the collection of Mr. F. W. Wellesley : — 
Laelio-Cattleya Morningtoni^, 25 gns. ; L.-C. 
Mrs. W. Hopkins, 12 gns.; Cypripedium 
Waterloo, 12 gns. ; and Cattleya Trianee 
Purity, 10 gns. By order of Mr. E. V. Low : 
— Cattleya Trianas The Premier, 25 gns. ; 
C. labiata Gilmourae, 30 gns. ; and 
Odontoglossum crispum solum, small plant, 
65 gns 
