bas. 6237, 
ODONTOGLOSSUM HAL. 
Native of Peru and New Grenada. 
Nat. Ord. OrcHIDEL,—Tribe VANDER. 
Genus OpontoGLossum, H, B. et K. ; (Lindl, Fol. Orchid., Odontoglossum). 
ODONTOGLOSSUM (Kuodontoglossum) Hallii; pseudobulbis ovatis compressis 
marginibus acutis, foliis pedalibus ensiformibus acuminatis basi angustatis, 
scapo gracili elongato, racemo multifloro laxo nutante, bracteis ovato- 
lanceolatis acuminatis, sepalis petalisque consimilibus oblongo-lanceolatis 
caudato-acuminatis aureis badio late fasciatis, labelli albi maculis 5 san- 
guineis notati lobis lateralibus angustis erosis terminali dilatato transverse 
oblongo eroso apice emarginato in sinu aristato, disco basi cristis 2 pec- 
tinatis ornato, columne alis apicis versus pectinatis. 
ODONTOGLOssUM Hallii, Lindl. in Bot. Reg., sub t. 1992; Fol. Orchid,, Odontogloss., 
p- 3; Bateman Monog. Odontogloss,, t, 21; Walp. Annal., vol. vi., p. 828; 
fteich, Xen. Orchid., vol. i., p. 63. 
Though differing somewhat in marking and slightly in 
characters from the typical form of 0. Hallii figured by 
Bateman, this must unquestionably be referred to that most 
variable species; the only other to which it is allied being 
O. luteo-purpureum, Lindl. (Bateman, Le., t. 17), which it 
approaches in the more pectinate wings of the column and 
im the broad terminal lobe of the lip, whilst it differs from 
the latter plant in the colour of the flowers and the much 
smaller bracts. I cannot, however, doubt that these two sup- 
posed species are referable to varieties of one, as a consider- 
ation of the varieties they severally exhibit tends to show. 
Mr. Bateman indicates the clawed sepals and petals as chiefly 
distinguishing 0. Hallii from luteo-purpureum, but I can find 
no difference in this respect either in his drawings or in 
native specimens; in fact, those organs are not clawed in 
either species. ; 
O. Halliiis a native of the Temperate Cordilleras of 
Peru and New Grenada, where it attains an elevation of 
eight thousand feet. The specimen here figured was flowered 
by Messrs. Backhouse, of York, in March, 1866. 
Descr. Pseudobulbs three to five inches long, ovate, 
JunNE Ist, 1876. 
