33 
a3 
20. 
ACH MIDD.GUIB AL 
ODONTOGLOSSUM MACULATUM triavs. 
THE BLOTCHED ODONTOGLOSSUM. 
ODONTOGLOSSUM. Vide Lindenia, I, p. 11. 
Odontoglossum maculatum (xanthoglossum). Pseudobulbi pressi phyllis; foliis oblongis ner- 
oblongis 
vosis acutiusculis ; racemis pendulis multifloris brevioribus; bracteis navicularibus, herbaceis, ovario brevioribus; sepalis 
lineari-lanceolatis acuminatis discoloribus ; petalis oblongis undulatis acuminatis ; labello cordato acuminato sub-crenato, 
appendice unguis bivalvi concava cochleari apice producta marginata per medium arguta serrulata; columna pubescente 
subaptera. 
Odontoglossum maculatum LLAVE et Lex., Orch. opusc., n° 39. — LINDL., Bot. Reg., 1840, pl. 30; Fol. 
Orch., Odont., no 11. — LinD., Pescatorea, pl. 28. — BaTEM., Monogr. Odont., pl. 20. — Bot. Mag., pl. 6455. — 
WILL., Orch. Alb., II, pl. 52. — Paxt., Mag. Bot., XIII, p. 147 (O. cordatum), — Fourn. of Hort., 1888, p. 149, 
fig. 17. — Les Orch. exot., p. 868. 
sql dontoglossum maculatum is a native of the southern part of Mexico, where it 
was discovered, about seventy five years ago, by La Liave and Lexarza, 
44 on the range of mountains washed by the Pacific Ocean, at a short 
distance from Valladolid. It was described by the explorers in their Orchidianum 
opusculum, published in 1825. It flowered in Europe for the first time about 1845, 
at Birmingham, in the celebrated collection of M. Gzorce Barker, who was the 
first to introduce it, but it soon disappeared from cultivation, and was only to be 
found on the continent towards 1869, when it was figured in the Pescatorea by 
M. J. Linven, who had definitively re-introduced it. 
In the form figured in the Pescatorea the sepals were violet-purple within, 
pale purple without, green median nerve, yellowish-green tip, whereas the plate 
figured twenty years earlier in the Botanical Register showed flowers with sepals 
of a dull purple coffee colour inside, and uniformly green outside. Experience has 
taught us that the form figured in the Botanical Register is the most common. 
O. maculatum is closely allied to O. cordatum, both having much about the 
same story. They are, however, easily distinguished one from the other. The 
principal mark of distinction is the decided contrast of colours between the 
coffee-brown sepals, and pale yellow petals spotted with brown towards the base, 
the same as the lip. The flowers of O. maculatum are also much smaller than 
those of O. cordatum; the petals are much shorter and broader, oval-apiculate, 
the lip more expanded and shorter, reminding us somewhat of that of O. Cer- 
vantest. 
Another species geographically allied to O. maculatum and béaring some 
analogy to it, is O. Rossz; the latter, however, has much richer colours and finer 
