122 THE ORCHID REVIEW. [APRIL, 19¢3. 
rest of the flower being blush-white, while murrhiniacum is rather larger and 
the disc a darker shade of rose-pink. D. n. elegans, Cypheri, Heathii, 
majus, rotundiflorum, Cooksonianum, and other named forms are also 
included. 
D. x Ainsworthii is represented by the varieties Leechianum, 
splendidissimum, Cypheri, a charming soft rose-pink form, the very fine 
Stand Hall variety, and marginatum, in which the sepals are distinctly 
margined with rose. These Ainsworthii forms we think are an improvement 
on D. nobile, especially in having a more expanded lip, and the disc 
feathered at the margin. 
D. xX Rubens was derived from the intercrossing of D. x Ainsworthii 
with D. nobile, and is remarkably variable. The original D. X Rubens is 
a large rose-purple form, the variety Apollo bright rose-pink, grandiflorum 
larger and lighter in colour, albens clear white, with a very dark maroon 
disc, slightly feathered at the margin, and Virgil larger, tipped with rose, 
and the disc not feathered at the margin. All of them are very beautiful. 
Other hybrids sent are, D. X Schneiderianum, a gem of the first water, 
D. X Cybele and its variety nobilius, the beautiful D. x Burberryanum, 
and D. X Pitcherianum Rolfez, while the species are represented by D. 
Findlayanum, D. F. albens, the charming D. crassinode album, and the 
remarkably fringed D. Brymerianum. 
Inflorescences of Epidendrum radicans, E.evectum, and-E. xanthinum 
are also enclosed, the contrast of colour being remarkably effective. Lastly 
may be mentioned a flower of the beautiful Vanda teres, the whole forming a 
magnificent series, and splendidly grown. 
pe ie cae cau 
ORCHID HYBRIDISATION. 
(Continued from page 62.) 
A MATTER which often perplexes beginners at this stage, and on which we 
have recently been consulted, is that capsules will often swell to a consider- 
able size, and then go off prematurely, or when they open they may be 
empty, or contain nothing but shrivelled hairs. In many cases this arises 
from fertilisation not having taken place. Pollination and fertilisation may 
be considered as two stages of the same process, but they are often separated 
by an interval of several weeks or even months, during which period a 
remarkable development is taking place. 
If an ordinary flower—e lily for example—be examined as soon as the 
flower opens the ovary and its contained ovules will be found ina developed 
condition, so that when the pollen is applied to the stigma the tubes grow 
rapidly, making their way down the tissue of the style, and into the ovary, 
