132 THE ORCHID REVIEW. [May, 1903- 
ardentissimum X spotted crispum. We also saw some young plants of 
O. X waltonense. We congratulate M. Peeters on his success, and hope 
to hear more of this very interesting collection. 
Here were four other Odontoglossum houses, with many plants of the 
usual kinds in flower, among which we noted the rare O. X stauroides, O. 
Hunnewellianum, and O. X Adrianz ; also a spike of O. crispum violaceum, 
with dark purple buds not yet expanded, O. crispum virginale, and O- 
luteopurpureum Vuylstekeanum. M. Peeters intends to cross the two 
latter together, and the result should be specially interesting, one being pure 
white, the other deep yellow without any brown markings. 
Lastly we visited the old establishment, formed sixty years ago, and 
found a good collection of Cattleyas, Cypripediums, Oncidiums, Vandas, 
&c., a number being in flower, but we must pass them over in silence, our 
space being exhausted. We shall long remember our visit to this very 
interesting establishment. 
PAPHIOPEDILUM x ROSSIANUM. 
Can Paphiopedilum x Rossianum occur as a natural hybrid? The query 
may at first sight seem absurd, seeing that the plant is an artificial hybrid 
between P. tonsum and P. barbatum, the one a native of Sumatra, the 
other of Malacca. But a flower from the collection of W. M. Appleton, 
Esq., of Weston-super-Mare, puts the question in another light. Mr. Appleton 
writes respecting it:—‘I take it to be a natural hybrid between tonsum 
and barbatum. It came with some imported tonsums that I had three or 
four years back, but has not flowered before—that is to say this particular 
growth, for the larger part of the plant is tonsum.” The flower certainly 
has the appearance of P. x Rossianum, the dorsal sepal showing traces 
both of the barbatum shape and colouring, while the upper margin of the 
petals is strongly ciliate, instead of being naked, the ciliz ranging from one 
to two lines long. There are also a few warts on the upper margin—in 
short, the plant seems just intermediate between the two species, and in any 
case there is a difficulty in accounting for its origin. P. tonsum is known 
to be a native of Sumatra; where also P. Curtisii grows, though Mr. Apple- 
ton’s plant bears no resemblance to it. But Sumatra lies parallel to the 
Malay Peninsula, where P. barbatum occurs, and the present discovery 
seems to suggest that somewhere P. tonsum and P. barbatum grow together. 
It would be interesting to know if plants of the latter have appeared among © 
importations of P. tunsum. We know very little about the distribution of 
Malayan Orchids, and we may recall the fact that the habitat of Paphio- 
pedilum superbiens is still unknown. We hope that some of our eastern 
collectors will try to clear up these doubtful points. R. A. R. 
