ORCHIDS. 33 
CATTLEYA MOSSLA, 
Tus choice specimen, — Tepresented in Plate No. VII.,— is 
a native of La Guayra, South America, and received its name in 
honor of Mr. Thomas Moss, an early cultivator of Liverpool, 
England. 
Its blossom of exquisite coloring and finish, and the general 
appearance of the plant, resemble closely the C. ¢viana, only the 
Mossiz blooms in summer. 
Great care and delicacy of treatment are essential in the culti- 
vation of the Cattleyas,—as indeed all this is needful in most 
other varieties and species. Heat, ventilation, and moisture are 
three chief factors always. Not great heat, for experience has 
shown that many varieties do better in a lower temperature. Es- 
pecially during a full season of rest, which Orchids must enjoy 
after blossoming, they should be given a somewhat cooler atmos- 
phere. 
An orchid-house, in which plants are growing, should smell 
sweet as a flowery meadow does during a sudden burst of sunshine 
after a summer shower. No dust, or cobwebs, or dry rubbish which 
could breed lice or vermin, must be permitted. One gardener said 
to us, “these varieties require as much care as a large family of 
children, and in bestowing such attention on the plants, we come 
to love them.” 
One thing should be emphasized for its importance, namely, 
the absolute necessity of cleanliness in order to raise flourishing 
plants. Frequent but careful washings with water are essential ; 
