ODONTOGLOSSUM ANDERSONIANUM. 
[Puate 35.} 
Native of New Grenada. 
Epiphytal. Pseudobulbs ligulate-pyriform, costate, two or three inches high. 
Leaves broadly linear, acute, about a foot long, of a light green colour, two from 
the top of each pseudobulb, with occasionally another from its base. Scape radical, 
te more or less drooping, supporting a branching raceme about two feet long. 
Flowers resembling those of Odontoglosswm Alexandre, but smaller, prettily spotted ; 
sepals ovate-oblong, acute, slightly crispy, creamy white, heavily and irregularly 
‘blotched on the lower half with bright chestnut-brown, the attenuated upper half 
unspotted; petals similar in form and colour, the blotches which are also on the 
lower half smaller, and more thickly placed; lip from a cuneate base, pandurate, 
‘arrow in front, apiculate, distinctly wavy and toothed, creamy white, yellow at the 
base, with fewer and smaller brown spots; disk deep yellow, with a prominent crest 
a 
“dividing in front into two divergent horns. Colwmn greenish towards the base, brown 
in front, the wings and anther-case white. 
OpontocLossum ANpERsoNIANUM, Reichenbach fil., in Gardeners’ Chronicle, 1868, 
999; Id. 1872, 41; Floral Magazine, 2 ser., t. 45. 
bd 
The charming Odontoglossum Andersonianum, supposed to be a wild mule 
between O. Alexandre (crispum) and O. prestans or O. gloriosum, is one of he 
oy prettily spotted Odontoglots which have been introduced into our collections 
urmg the past few years, and among which new varieties are continually appearing. 
One of the best forms of this plant which has come under our notice is tbat 
represented in the accompanying plate, prepared from a very beautiful specimen 
Which bloomed last year among many other fine Odontoglots, well cultivated in the 
collection of Messrs, William Thomson & Sons, of Clovenfords near Galashiels. 
The Odontoglossum Andersonianwm is a compact-growing plant, with pytiform 
Pseudobulbs two to three inches high, pale green leaves, and gracefully drooping 
branched flower-spikes about two feet in length. The sepals and petals are at first 
eamy white, spotted with purplish brown, the lip being also white, but less heavily 
ped. The plant is of free-blooming habit, the flowers continuing fresh and perfect 
ira Period of five or six weeks. It is exceedingly difficult to recognize this 
form until it produces its blossoms, as its growth is remarkably similar “iy that 
of 0. Alexandre. Indeed there are many forms and varieties of this particular 
aes Which it is impossible to recognize until their flowers are seen; and, though 
cultivators may sometimes feel assured of the identity of individual plants, the 
Production of flowers not unfrequently proves them to be mistaken. 
