HYBRID ODONTOGLOSSA, 259 
CoLtourR ARRANGEMENT. 
A rather unexpected result of colour arrangement was proved by the 
appearance of Odontioda Vuylstekee. (Fig. 83.) Instead of the red of 
Cochlioda Noezliana mingling equally with the white of Odontoglosswm 
nobile and producing an intermediate self-coloured flower (as many experts 
thought it would), it separated more or less and formed a basal area upon 
a larger white surface, on all sepals and petals, of deep vermilion, some- 
what shaded by the rose in O. nobile, the remainder of the segments being 
quite a light rosy-purple. This semblance of a great blotch led many 
Fic. 74.—Opontociossum VuyusTEKEx. (Orchid Review.) 
Ground colour white ; overlaid with crimson-purple. 
to consider O. ardentissimum the parent, and not O. nobile, but we 
have only to look at Odontoglossum Lairessei (Hdwardu x Cervantesii) 
(figs. 84, 85) to see exactly similar conditions of dissociation and re- 
arrangement of the colours; the result being that the deep violet-purple 
of Hdwardii has been relegated to a similar basal area of violet-purple, the 
remainder being a palish pink. It may here be contended that theory is 
at fault because in O. Cervantesii there is a basal area of spots wherein 
to gather the violet-purple, which is not the case in O. nobile; but this 
can be proved to be non-efficient, for, apparently, spotting of the other 
parent has no influence upon the violet-purple of O. Hdwardii, as 
witness O. Fletcherianum (Edward x cirrhosum), in which oe colour is 
solid and uninfluenced by the spotting of cirrhosum. 
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