37 
r.W 
PL. DLAIX: 
ODONTOGLOSSUM x CIRRHO-HALLI tL. tuo. 
ODONTOGLOSSUM. Vide Lindenia, I, p. 11. 
Odontoglossum X cirrho-Halli. Hybridum inter O. cirrhosum et O. Halli artificiosa fecundatione productum. 
Odontoglossum cirrho X Halli L. Linp., Sem. Hort., I, p. 109. 
2\<( dontoglossum hybrids always attract more attention than any 
other Orchid hybrids on account of their great rarety and the difficulty 
experienced in obtaining them. In the houses of the Horricutrure 
INTERNATIONALE, Brussels, an Odontoglossum hybrid has just flowered. It is the 
result of a cross between O. cirrhosum and O. Halli, and is so obviously inter- 
mediate between the two parents that there is no difficulty in recognising the 
origin at the first glance. 
The sepals and petals are oblong-lanceolate, very wavy on the edges, 
and tapering to recurved and falcate points. They are pale yellow, faintly tinged 
with green, and studded with numerous blackish brown eyelike blotches, as in 
O. cirrhosum. The spots towards the outer extremity of each segment, however, 
are larger than the others, while the white base of the petals is also striped with 
purplish brown rose. The lip is furnished with two large rounded lobes at the 
base, as in O. cirrhosum, and is prolonged in front into an acute tail. It has the 
same colour as the other segments, with a deep yellow disc. 
This beautiful hybrid has the merit of uniting to the graceful form, which 
it derives from O. cirrhosum, the richness of colour which one admires so much 
in O. Hallii. It possesses, besides, an exceptional interest, inasmuch as it may 
help to elucidate the origin and parentage of several plants introduced directly 
from Tropical America, which have been from the first considered as natural 
hybrids. 
Among the most prominent and best known of these plants may be cited 
O. elegans, which in all probability is a natural hybrid between O. cirrhosum and 
O. Hallii, and also O. Hinnus, which ReicHENBACH considered to be a hybrid 
of similar origin when describing it. 
According to this description, O. Hinnus has narrow, lanceolate, undulate 
sepals and petals of a yellow and cinnamon colour. The lip, similarly coloured, is 
narrow with a sub-hastate base, at first very broad, then sharply contracted. This 
description is not sufficient to settle the identity of this plant with O. x cirrho- 
Hallii, although it does not contradict it. 
Messrs. Verrcn in their Manual have ranked O. Hinnus as a variety of 
Ug 
