OCTOBER, 1909.| THE ORCHID REVIEW. gOr 
Messrs. Hugh Low & Co. in April, 1864, and flowering now for the first 
time.” Whether it had flowered previously in cultivation is uncertain, for 
there are no dried garden specimens at Kew, though when Lindley figured 
the plant, in 1839, from a drawing sent by Schomburgk to Messrs. Loddiges 
(Sert. Orch., t. 29), he remarked : ‘‘ Through the exertions of Mr. Schomburgk 
Messrs. Loddiges have at length added the white variety of this interesting 
plant to our collections. The species was originally discovered at Bahia by 
Salzmann, growing in sandy thickets, and afterwards in British Guiana by 
Schomburgk. Schomburgk made paintings, showing a white variety and 
another with rose-coloured petals and lip, both of which appear in Lindley’s 
plate. The history of S. Elisabethz is curious, and indeed the name should 
never have been published, for two years previously Lindley had shown the 
identity of the two plants, and remarked: ‘“ Mr. Schomburgk, being 
misled by an erroneous description of the pollen masses of Sobralia, had 
regarded his plant as a new genus, and had sent drawings to Baron 
Humboldt for publication. . . . Neither the genus nor species is new, 
as has been supposed.” He also added that Mr. Schomburgk supposed the 
red and white specimens belonged to different species, though the flowers 
appeared to be the same, and in any case the white one most certainly 
agreed with that from Bahia. S. Liliastrum belongs to the racemose 
section of the genus, the flowers being borne in succession from the axils of 
the bracts, which are borne distichously on a zigzag rachis, and the one sent 
by Mr. Humphreys shows twelve bracts, there being two undeveloped buds 
above the expanded flower. The flower is white, with the exception of the 
lemon yellow disc, as is also that drawn by Mr. Day. It is interesting to 
find the plant at last established in cultivation, and to clear up the confusion 
in its history. R.A, & 
CALENDAR OF OPERATIONS FOR OCTOBER. 
By W. J. MorGan, Rann Lea Gardens, Rainhill, Lancs. 
TuE last fortnight of bright weather has been a great help to Dendrobes, 
Cattleyas, Calanthes, &c., which were badly in need of sun to ripen them, 
after the dull summer wé have had. Every advantage should be taken of 
bright days, and the syringe should be freely used in the morning, and 
ample ventilation afforded. The glass should also be kept clean, so as to get 
every benefit possible from the sun. Keep the fires low just while the sun 
is bright, but they should be kept clean and ready to start if the weather 
should change suddenly, as nothing is more harmful than sudden changes 
of temperature. : 
Turip.—In last month’s Orchid Review I noticed an article on Thrip 
(pp. 281-282). This is about the worst time of the year for these insects, 
just as the damping is being slackened and more fire heat used. The plants 
