JULY, tg1t.| THE ORCHID REVIEW. 220. 
abundance of moisture, but if over-watered their leaves become spotted and’ 
unsightly. 
SOBRALIA MACRANTHA and the lovely white variety alba, as they pass out 
of flower, should be repotted, if they require it, using a compost of equal 
parts of peat fibre, and good turfy loam, with a fair quantity of coarse silver 
sand, and potting them firmly. Water must be applied with caution until 
the plants are established in their pots, as they resent being disturbed, and 
this operation should be done with care. They delight in an Intermediate 
or Cattleya house temperature, and should not be allowed to get absolutely 
dry even in the winter months. 
GENERAL REMARKS.—Attend to the general routine of cleaning, the 
tying up of growths, and the extermination of all insect pests. Watering, 
shading, and ventilation demands much attention during this month. Any 
plants that are not in robust health should have their flowers removed as 
soon as ever they are open. I am not much in favour of taking spikes out 
before the flowers open, as it has a tendency to throw the plant out of season. 
i See 
CYPRIPEDIUM LUTEUM. 
Tuts handsome Chinese Cypripedium has at last been introduced to 
cultivation, a large number of plants having been Collected by Mr. E. H. 
Wilson during his recent visit to China on behalf of the Arnold Arboretum, 
and a photographic illustration has appeared in the Gardeners’ Chronicle 
(1gII, i. p. 402, fig. 178). It was originally described by Franchet, in 1888 
(Pl. David., ii., p. 126). Roots of C. tibeticum have also been introduced 
at the same time. Mr. Wilson remarks, respecting them :— 
‘© The roots were received at the Arnold Arboretum, Boston, U.S.A., on 
April 12th last, and a few plants were potted and kept ina greenhouse. On 
May 6th C. luteum opened its flowers for the first time under cultivation, and 
the photograph reproduced was taken. . . - These roots were dug up. 
in October, 1910, transported some eighteen hundred miles by porters, 
boat and steamer, and finally shipped from Shanghai on March 14, IgIt. 
Although the roots were a full six months from the time of collecting to 
that of planting they travelled very well, and hundreds are growing away 
freely in the nurseries of the Arnold Arboretum. This augurs well for their 
vitality, and indicates that their acclimatisation should not be a difficult 
matter. Their hardiness, as judged from the altitude at which they occur 
in their native state, and from plants growing in association with them, is 
assured. Both species are sturdy, vigorous growers.” 
C. luteum is described as an erect-growing species, 20-45 cm. high, with 
solitary clear yellow flowers, the pouch usually having a few orange-brown 
spots or blotches in front, otherwise much resembling the North-American , 
C. spectabile. : 
