92 THE ORCHID REVIEW. [Marcn, 1908. | 
Now comes Cypripedium montanum, a North American Orchid. Here 
the flowers have become completely irregular in shape. The two lateral 
sepals are united, and the lateral petals elongated and twisted, while the 
third or median one is modified into a pouch-like organ, called the lip. The 
side lobes of the pouch are enfolded, so as to partially enclose the column, 
and over the opening of the pouch is seen the staminode, while over two 
lateral openings at the base occur the two stamens. Here are great 
differences from Neuwiedia, yet if a careful comparison is made they are 
seen to be only modifications of the same type—a sort of higher develop- 
ment. The anthers are shortened, and the pollen grains are held together 
by viscous matter, though still simple, while the middle one of the anthers 
is transformed into a staminode. The stigma has also become shield- 
shaped, and is situated beneath the column, in an angle between the 
staminode and the anthers. The whole structure is an adaptation to secure 
insect fertilisation. Where the plants grow a bee is found, which visits the 
flowers. It alights on the pouch, and crawls in by way of the front opening, 
but cannot turn round and escape by the same way, so it makes for one of 
the basal openings, and crawls out there, and in doing so its back becomes 
smeared with viscid pollen from the anther situated over that opening. 
The process is now repeated with another flower, but as the bee crawls up 
the pouch it passes beneath the stigma, and when it has pollen on its back 
this gets smeared on the stigma, and pollination is effected. The structural 
arrangements of the flower are intended to secure the reproduction of the 
species, the presence of the suitable insects in the district of course being 
necessary. (To be continued.) 
ANGULOCASTE BIEVREANA. 
A very interesting generic hybrid is figured in a recent number of the 
Tribune Horticole (1907, p. 516, t. 57). It was raised in the collection of His 
Majesty the King of the Belgians, at Laeken, by M. de Bievre, who gives 
its history as follows :—‘‘A flower of Anguloa Ruckeri was fertilised on 
September 3rd, 1895, with the pollen of Lycaste Skinneri var. pallida, and 
the seed was mature and was sown in the following May, on the pot of the 
seed parent. A year later a single seedling was detected, which flowered 
for the first time in July, 1903. It usually produces five or six flowers on 
each bulb, which are very fragrant, like the Anguloa parent.” On June 
17th, 1906, the plant was exhibited at a meeting of the Société Royales 
Linnéenne et de Flore, Brussels, when bearing thirteen flowers, and was 
awarded a Certificate of Merit. The flowers are large, and have very broad 
deep yellow segments, spotted with red on the column, and base of the lip 
and petals. Professor Cogniaux, in describing the plant, remarks that 
although M. de Bievre has no doubt about the facts stated, he himself thinks 
