PLATE XX. 
ODONTOGLOSSUM MACULATUM. 
SPOTTED ODONTOGLOSSUM. 
O. (XANTHOGLOSSUM) pseudobulbis oblongis compressis monophyllis, foliis oblongis nervosis 
acutiusculis, racemis subpendulis multifloris brevioribus, bracteis navicularibus herbaceis 
ovario brevioribus, sepalis lineari-lanceolatis acuminatis discoloribus, petalis oblongis un- 
dulatis acuminatis, labello cordato acuminato subcrenato, appendice unguis bivalvi con- 
^ ۰ ۰ ۰ ۰ ۰ 
cavê cochleari apice liberå bidentatá per medium argute serrulatá, columnå pubescente 
subapterá. Lindl. 
ODONTOGLOSSUM MACULATUM, Llave, Orch. Mex. 2, 35; Bot. Reg. 1840, t. 30; Pescatorea, t. 28; Lindl. Fol. Orch. 
Habitat in Mexico, Lexarza, Barker, Karwinski. 
DESCRIPTION. 
PSEUDOBULBS narrow, oblong, much compressed, from 2 to 4 inches long, l-leaved. LEAVES lanceolate-oblong, nervose, 
more or less sharp-pointed, shorter than the Jlower-scapes. Bracrs boat-shaped, acuminate, the lower ones shorter 
than the upper ones, nearly as long as the ovary. Racemes nodding, sometimes pendulous, 5- to 12-flowered, about 
a foot long. FLowers variable in size and colour, which is sometimes a brightish at other times only a greenish- 
yellow, spotted with brown. SBPALS brown inside, linear-lanceolate, acuminate.  Perars rather wide, oblong, waved, 
acuminate. Lie heart-shaped, acuminate, slightly crenate, with a two-cleft process forming a pair of blunt teeth at 
the upper end of the claw. Corum pubescent, clavate, wingless. 
This plant is common in many parts of Mexico, especially on the Irapæan mountains in the neighbourhood of 
Valladolid, where it was originally discovered and described by Lexarza, that earliest of Orchid-devotees! It was also 
one of the earliest species of the extensive genus to which it belongs that ever produced flowers in England. The 
credit of introducing it belongs to the late Mr. Barker, of Birmingham, with whom it bloomed about the year 1839, 
but it soon disappeared, like nearly the whole of the invaluable collection of Mexican Orchids that [ remember having 
seen in the most splendid condition, shortly after their arrival, in his stoves. Fifteen years afterwards it was re- 
introduced by M. Linden, from whose establishment the figure in ‘ Pescatorea? was obtained, but it seems to have again 
been lost. Last spring (1866) I had the pleasure of seeing the species in the best possible health in Mr. Dawson’s 
rich and admirably-managed collection at Meadow Bank near Glasgow, and from his plant, which flowered in April, 
Mr. Fitch’s drawing was prepared. I also received specimens about the same time from Mr. Turner. Still more 
recently, Messrs. Hugh Low and Co. have imported it in large quantities and excellent condition, and many good 
varieties have already appeared, though none that I have yet seen are so fine or so richly coloured as that of Mr. 
Dawson. One that is now flowering at Knypersley is a dull yellowish-green. 
In its native country it flowers in March, which is about the time of its flowering with us. As to treatment it 
will naturally be found more at home in the Mexican house, where a cool and comparatively dry atmosphere should 
be maintained, than in the Peruvian house, which should be suited to the species that are accustomed to a damper and— 
not unfrequently—still cooler climate. I have no doubt that this distinction will be found of much practical utility, for 
although “cool treatment" as opposed to * warm" marks a very important division still, just as among “warm” plants 
it is necessary to separate the East Indian Aerides from the Brazilian Cattleyas, so among “cool” plants it will be 
