MARCH, 1910. | THE ORCHID REVIEW. 67 
(I) Dendrobium xX Mrs. A. M. Walker, the parents of which is stated 
as D. nobile x Robinsonianum (x Ainsworthii), but this hybrid 
is already named D. x Rubens. (z) Cattleya x Armstrongiz, of which 
the parentage is given as C. x Hardyana x Harrisonie#. The latter 
parents, however, produce C. x Cypheri, while C. x Armstrongiz is 
said to have been derived from C. x Hardyana x Loddigesii. Although 
C. Harrisonie and . Loddigesii are somewhat similar, it is generally 
agreed that they are quite distinct. (3) Paphiopedilum Rothschildianum 
x villosum is listed as Baron Komura in one list, and as P. Rothschildiano- 
villosum is another, but the Stud-Book calls it P. x Vacuna. Many other 
instances could be quoted. 
My collection, numbering just over four hundred plants, occupies three 
houses, r6ft., r4ft., and r4ft. long by 7ft. 6in. wide, and among the plants 
grown are :—Brassocattleya Holfordi, Maroni, Praetii, and Veitchii, Brasso- 
lelia Cecilie and Helen, Cattleya x Cypheri, X Fabia and X Mantinii, 
Lzeliocattleya Antigone and Greenwoodii, Papbiopedilum X Balmedieanum 
(Stonei X Fairrieanum), X Edith, x Elsie var. magnificum, X Goodsoni, 
insigne Harefield Hall var., i. Sandere, x Lawrebel, x Mabeliz, x 
Margery, xX Rolfei, Rossetti, x Transvaal superbum, x Vacuna, &c. 
In conclusion I should like to voice my appreciation of the Review, and 
I can assure you it has been of great service to me, and I wish it 
continued success. RK. L.-Y, 
We thank our correspondent for his appreciative note, and quite agree 
with his remarks on the naming of hybrids. We realise the difficulties 
involved, but the publication of the Orchid Stud-Book should check some of 
the confusion, at all events so far as the older hybrids are concerned. We 
certainly do not think a new name was required for any hybrid between D. 
nobile and D. x Ainsworthii, for the Stud-Book shows sixteen distinct names 
for it, the oldest of which is D. x Rubens, which we adopted. It is simply 
a primary hybrid re-crossed with one ofits original parents, and its numerous 
forms can easily be classed as varieties of one. Any difficulties under this 
head arise from the fact that some of the seedlings might resemble forms 
of D. nobile and others forms of D. x Ainsworthii. The case of Cattleya 
x Armstrongiz is a little more difficult, because C. Loddigesii and 38 
Harrisonie—or C. Harrisoniana, to use the older name—are sometimes 
confused in gardens, and their history and differences are not completely 
cleared up. The name Paphiopedilum xX Baron Komura is not in harmony 
with the laws of botanical nomenclature, nor with the R.H.S. rule which 
requires that ‘‘ hybrids between species should be named in Latin.” And 
P. x Rothschildiano-villosum is too long, consisting of eight syllables, 
which brings it under the heading of sesquipedalian names, which are not 
