74 THE ORCHID REVIEW. 
I was astonished, and could hardly believe my eyes, at seeing a panicle of 
the golden flowers of D. chrysotoxum proceeding from the bulbs of D. 
Farmeri! the only difference being that the labellum is here rather more 
pointed, and not so round as in D. chrysotoxum.” Sir William Hooker 
pointed out further that the fringe of the lip was also essentially different 
in the two species (and, he might have added, the bracts also), finally 
concluding that the new form was quite distinct from D. chrysotoxum, but 
only a yellow-flowered variety of D. Farmeri. Although so distinct from 
D. Farmeri at the first glance, further examination fails to reveal any other 
important difference beyond the colour. Like D. Farmeri, it is a very 
handsome plant. 
R. A. R. 
ed 
DENDROBIUM x ROLFEA VAR. CANDIDULUM. 
Tue history of Dendrobium x Rolfez and its handsome variety roseum 
are given at pages 113 and 114 of our second volume, where also both are 
figured. A most beautiful white variety has now appeared in the collection 
of T. A. Gledstanes, Esq., Manor House, Gunnersbury, which may bear the 
above name. It was obtained as an imported D. nobile, and agrees with 
the two above named in having lost the characteristic maroon blotch of D. 
nobile, only retaining the crimson-purple radiating lines at the base of the 
side lobes, and a paler stain between them. All the rest of the flower is pure 
white, with the faintest tint of pale sulphur on the lip. The pseudobulbs 
are slightly flattened at the sides. The variety roseum also appeared as aa 
imported D. nobile, and presents the same arrangement of colour on the 
lip, while the apex is suffused with rose-pink, together with the whole of the 
sepals and petals. The original D. x Rolfe, on the contrary, isan artif 
hybrid, raised and named by Messrs. F. Sander & Co., who state that D- 
primulinum @ and D. nobile g were the parents. It has precisely se 
same arrangement of markings at the base of the lip, and the same absencé 
of the characteristic maroon blotch, and, from this circumstance, one cannot 
avoid the conclusion that the two wild varieties are also hybrids from the 
Same two species, which are known to grow together in Sikkim. That ee 
are not mere varieties of D. nobile is clear, and the various points of agree 
ment between the wild and artificiall 
y raised plants are too obvious to be 
overlooked. 
5; All three are charming little plants, and the present on 
Particularly so, on account of its purity of colour. It would be worth we 
to make further experiments with these two species, using the choicer 
varieties of D. nobile as the parents. Other examples of the wild hybrid 
may be anticipated. 
R. AB 
