NATURAL HYBRIDS OF THE CATTLEYA GROUP, 237 
Two of the above are preceded by a “?”’—Cattleya x Measuresii, 
because the supposed parents are not yet known to grow together, 
while the habitat is unrecorded, and neither specimen nor figure is 
known; and Lelia x Cowani, because further evidence of its origin 
is required. In a few other cases some modification of details may be 
necessary as additional materials come to hand. In most cases, however, 
very little doubt remains as to the origin and parentage. Several have 
already been confirmed by experiment, though in a few cases I have 
not been able to compare the natural and artificial hybrids together. 
The limits of the last four geographical divisions are not well defined, 
and they might have been treated as subdivisions of one, for a few of the 
parent species extend to two or more of them. The object, however, is 
to indicate the species which grow intermixed, and the hybrids which 
occur with them, respecting which the evidence is at present very 
imperfect. It is also possible that certain hybrids may occur in more 
than one division. For example, Cattleya x intricata is known from 
the Santa Catherina district, but the above list suggests that it may also 
occur near Rio de Janeiro, and the remark may possibly apply to others. 
Some interesting information might be given by collectors as to these 
points. 
Taking now the forty species from which natural hybrids have been 
recorded, we find that Cattleya intermedia comes first, with no fewer than 
eight to its credit, while C. bicolor, C. Forbesii, C. Leopoldii, and 
C. Loddigesw follow with five each. From C. Schilleriana and Lelia 
albida four each are recorded, while C. guttata, C. Harrisoniana, and 
C. Warneri are each credited with three. Those with two each number 
thirteen, namely, CU. dolosa, C. granulosa, C. labiata, C. Walkeriana, 
Lelia anceps, L.. autumnalis, L. Boothiana, L. crispa, L. furfuracea, 
L. grandiflora, L. grandis, L. pumila, and L. purpurata. Lastly there 
are seventeen from which only a single natural hybrid has been recorded, 
namely, Brassavola tuberculata, Cattleya Aclandie, C. amethystoglossa, 
C. aurantiaca, C. Dormaniana, C. Dowiana, C. Eldorado, C. elongata, 
C. porphyroglossa, C. Skinneri, C. superba, C. Warscewiczii, Lelia 
Dayana, L. flava, L. harpophylla, L. Perrinii, and L. tenebrosa. 
The species of Cattleya and Lelia not known to yield hybrids in 
a wild state are barely three-fourths as numerous, and a good many of 
these are believed to grow isolated. This is particularly the case with 
the monophyllous Cattleyas—the labiata group—five only out of seven- 
teen being concerned in the production of natural hybrids—so far as our 
knowledge extends—though of artificial hybrids raised in gardens the 
name is legion, thus illustrating an opening remark of this paper, that 
in this group hybridisation is largely a question of opportunity. 
We need not pursue the subject further, beyond remarking that the 
above may not include all the hybrids which occur in a wild state, for 
the facts already known suggest other possible combinations which have 
not yet been reported. Horticultural collectors might make some useful 
contributions to this interesting question, and we may add that hybridists 
might also make some useful contributions to botanical science by testing 
some of the combinations above suggested, especially where doubt exists, 
and thus immortalise their names in the literature of the subject. There 
s 
