508 FLOWERS OF GARDEN AND GREENHOUSE 
pseudo-bulbs, others club-shaped, horny stems, leafy only at the summit; 
but the majority produce long leafy branches. The majority, again, have 
ordinary flat leaves, but in some they are two-edged, like those of Jris, 
and in others they are round and tapering. Some of the species are 
minute, others are among the largest of the Orchids. The flowers are 
purple, rosy, green, or yellow; solitary or in clusters or racemes. The 
lip is more or less contracted at the base, and lies upon or grows to the 
foot of the column. The anther is two-celled, with four pollinia of pretty 
uniform breadth at either end. They are natives chiefly of India and the 
Malay Peninsula, but a few are found in Australasia and the Pacific Islands. 
The cultivation of Dendrobiums dates from the 
beginning of the century—or rather, we should say, the 
first Denrobe was introduced then, Roxburgh having sent several species 
to Kew from India, followed by Pierard and Wallich; but owing to the 
mistaken notions then prevailing, and to which we have already referred 
at some length, these cannot be said to have been cultivated. And yet 
the plants tried their best to explain how they should be treated, for Mr. 
John Smith, in his Records of Kew, tells how, in the year 1822, he found 
these plants of Roxburgh’s “on a shelf above a flue against the back- 
wall in what was then called the propagating-house. . .. There were 
also plants of Dendrobium Pierardi and D. cucullatum, flowering freely, 
which had recently been brought home from Caleutta by Mr. Pierard.” 
The roots of some of these had attached themselves to the wall. Among 
the early introductions were the two species named, which came about 
1815 from India, whence also came D. Calceolaria in 1820, as also 
D. crumentatum and D. fimbriatum in 1823. The beautiful D. nobile 
was introduced from China in 1836, and D. devonianum from India in 
1837. D. Farmeri, introduced 1847, we also owe to India. Many fine 
species have been brought into cultivation quite recently, and the 
country of their origin, with the date, will be found marked against 
these species below. 
DENDROBIUM AGGREGATUM (assembled _ together). 
Pseudo-bulb, thick, bearing a single leaf. Flowers deep 
yellow in arching racemes, 6 inches long; March to May. Introduced 
from North India, 1837. The var. majus has larger flowers. Green- 
house ; best grown on block. 
D. CRASSINODE (thick-noded), Like D. Wa vdian um, except that the 
stems are swollen at the nodes; spring. Stove. ‘ 
D. CALCEOLARIA Glin ile Pseudo-bulbs 4 feet en Flowers 
large, bright yellow, about twelve in a raceme. Summer. Stove, or 
warm greenhouse. Also known as D. moschatum. 
History. 
Principal Species. 
