96 WINDOW AND PARLOR GARDENING 
Oncidium is a genus nearly allied to the last. The flowers 
are strange and beautiful, often produced in very large racemes. 
The common Butterfly Orchid, Oncidium Papilio, is curious 
but not beautiful, and therefore not worth growing in a house. 
O. Forbesii is a beautiful plant with long arching racemes of 
copper-colored flowers edged with clear yellow. Blooms in 
the fall. O. varicosum and O. tigrinum have flowers borne on 
long arching peduncles ; varicosum in ample branching ra- 
cemes. The flowers are yellow, blotched and barred with 
chestnut-brown. The Oncidiums can be grown on blocks of 
wood or in baskets; they require good drainage if grown in 
pots, abundant water during growth, and moderate heat with a 
decided rest in winter. 
Dendrobium, a large East Indian 
genus, forms one of the most popular 
and useful families. The plants pro- 
duce more or less long, terate or 
\2 y (e's ‘ clavate stems, from the nodes of which 
GS Ve i 
the flowers are produced in clusters. 
They require plenty of heat and sun, 
a well-marked rest during winter, and 
plenty of water during the growing 
z 3 J ‘7 period. D. nobile is a very attractive 
Wp : : 
g and easily grown plant, with erect, 
is = a. fleshy stems of a finger’s thickness, 
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pe Yi and a few lanceolate leaves at the 
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i apex. ‘The flowers are produced in 
Dendrobium nobile. ¥ 
small clusters from ripe stems. The 
color is white-tinted lilac; lip crimson with deep maroon 
blotch in the throat. 1D. Wardianum has long arching stems 
and splendid white flowers ; lip yellow in the centre with large, 
