THE ORCHID REVIEW. 333 
The spots also are generally most like those of the first named. In shape, 
the range of variation is greater, as would be expected from the diversity 
between the two parents in this respect. Some formsare quite intermediate, 
others approach O. luteopurpureum in the breadth of the sepals, petals, and 
lip, as in O. X mulus, while the forms with narrower segments, ranked 
under O. X cuspidatum, more nearly approach O. gloriosum. In the crest 
of the lip and wings of the column, so different in the two parents, the same 
variation is seen. 
The following is a list of the forms of this hybrid, with references to 
descriptions and figures : '— 
Odontoglossum X mulus, Rchd. f. Xen. Orch., ii. p. 151, t. 160, fig. 1,2; Jd. in Gard. 
Chron., 1873, p. 432; Id., 1883, i. p. 469, fig. 70; Id., 1886, i. pp. 12, 13, fig. 4; Warn. Sel. 
Orch,, ser. 3, t. 28. O. luteopurpureum var. mulus, Vettch Man. Orch., i. p. 46, with fig. 
Bockett’s variety, Pollett Cat. Fernside Coll., i. p. 4, n. 20, t. 8, fig. 245; Za. ii. p. 8, n. 
120, t. 7, fig. 102. 
Var. Holfordianum, Rchb. f. in Gard. Chron., 1882, ii. p. 616 ; Orchid Album, ix. t. 429.7 
0. X cuspidatum, Rchd. £, Xen. Orch., ii. p. 199, t. 184, fig. 1; Zd. in Linnea, xii. p. 27 ; 
Lindenia, iii. p. 9, t.99. O. luteopurpureum var. cuspidatum, Veitch Man. Orch., i. p. 45. 
Var. xanthoglossum, Rchb. f. in Gard. Chron., 1881, i. p. 428; Orchid Album, ix. t. 390. 
O. X histrionicum, Rchb. f. in Gard. Chron., 1882, i. p. 178. Var. bellum, Rehb. f. in 
Gard. Chron., 1883, ii. p. 437. 
O. X tentaculatum, Rchb. f. in Gard. Chron., 1883, i. p. 814; Veitch Man. Orch., i. p.77 + 
Pollett Cat. Fernside Coll., ii. p. 7, n. 111, t. 7, fig. 124. 
OpontocLossum x LINDLEYANO-LUTEOPURPUREUM.—Near the preced- 
ing, and less easily distinguished from it than might at first be imagined, is 
the hybrid between O. luteopurpureum and O. Lindleyanum, which hitherto 
does not appear to have been clearly defined, though more than one form is 
Mcultivation which has evidently been derived from this particular cross. 
That the two species grow together we have already seen, and not only 
S this the case in the district around Bogota, but probably much farther 
horth, as O. Lindleyanum, like O. luteopurpureum, occurs in various localities 
°n the eastern Cordillera between Bogota and Oca‘ia, in some of which the 
two grow in company, and the facilities for intercrossing are therefore 
Present, 
There are two forms described by Reichenbach which I believe properly 
belong here, namely O. x acutissimum and O. x lepidum, though their 
&xact Parentage has been a matter of some doubt. 
Odontoglossum x acutissimum appeared in 1852, 
- Wallace, of Lion Walk, Colchester, in an importation of O. crispum. 
in the collection of 
; issi ; vinced 
€ omission of Odontoglossum X hinnus, Rchb. f. may be noticed, but I am convin 
es quite a different parentage, as will hereafter be seen 
quite € plant figured in the Orchidophile, 1885, P. 132, fig. 4, 
“ifferent, and appears to be a variety of O. X Coradinel. 
under this name is evidently 
