8 THE ORCHID REVIEW. [JANUARY, 1923. 
After a further search, two other specimens of the fly—a species of Sciara— 
were seen running rapidly over the ground. They did not take flight when 
disturbed, being, no doubt, overburdened by the pollinia. During the 
daytime, the flies concerned in the pollination of S. bicallosum are not 
frequently seen, but at dusk they appear in large numbers, and fly fairly 
actively. It seems probable, concludes Mr. Garside, that cross-pollination 
takes place most frequently at nightfall, and that once a fly has a pollinium 
attached, it does not usually again take flight, but runs from flower to 
flower, and from inflorescence to inflorescence. Almost all flowers from the 
lower part of the spike had both pollinia removed after the flower had been 
open for a night, and, as the plants set seed abundantly, cross-pollination 
must be very effectively carried out. 
Regarding the processes of fertilisation of South African Orchids, it is 
thirty-five years since Bolus remarked that the field of investigation is large 
and deeply interesting, and will afford a rich harvest of results to those who 
may have the time and patience to Jabour in it. 
L&LIOCATTLEYA JOSETTE.—A flower of this delightful novelty comes 
from the collection of Mons. Charles Sladden, of Liege, Belgium, who raised 
it by crossing C. Octave Doin with Lc. St. Gothard. The seed was sown 
in 1918, and the first flower, which has just been produced on a bulb only 
three inches high, promises well for the batch, for in size it is equal to that 
of a typical C. labiata, while the colour of the sepals and broad petals is a 
pleasing combination of rose and terra-cotta tints, the handsome labellum 
being rich purple with a golden throat. 
L&LIA JUVENILIS.—Originally raised in 1890, by M. Bleu, of Paris, 
this hybrid between L. Perrinii and L. pumila was subsequently figured in 
Lindemta (vol. ix, t. 415), and on November 24th, 1896, it received an Award 
of Merit when exhibited at the Royal Horticultural Society by Sir Trevor 
Lawrence. At the sale of Sir Trevor’s collection, a seedling labelled L. 
pumila X L. Perrinii alba was purchased by Wm. Salkeld, Esq., Kirkoswald, 
Cumberland, and on flowering proved almost identical with the one figured 
in Lindenia. Following the rule of primary hybrids, it is intermediate in 
character, although as happens when a white variety is crossed with a 
coloured one the flowers revert to the normal rosy-mauve colour. Mr. 
Salkeld mentions that his plant is a robust grower and flowers every year in 
November, the flower being produced without a sheath. At the R.H.S. 
meeting of November 28th, 1922, Messrs. Stuart. Low exhibited another 
early-day hybrid in Lelio cattleya Decia (L. Perrinii X C. aurea), with 
whitish sepals and petals, due to the influence of the yellow in aurea, and a 
-coloured lip. 
