BIGENERIC ORCHID HYBRIDS. 159 
results, besides the hybrids afore-named there is one other, at 
least, in existence, but which has not yet flowered, namely— 
Selenipedium crossed with Cypripedium. 
And of other crosses which have been effected, and capsules 
produced, but from which no seedlings have been raised, we 
have 
Bletia crossed with Calanthe. 
Acanthephippium crossed with Chysis. 
Chysis » »  Zygopetalum, 
Zygopetalum » » Lycaste. 
Odontoglossum » »  Lygopetalum. 
Negative results are more difficult to deal with, as several 
failures may in some instances be followed by success. Still, 
from the long experience of the Messrs. Veitch in this field, the 
following extracts from the afore-named paper of Mr. Harry 
Veitch may be admitted as fairly proven facets. Speaking of 
Masdevallia he says :— 
“Masdevallia, as a genus, is far more heterogeneous than was 
at first supposed, whence a mixture of the different sections may 
not possibly be effected. ... All attempts to intermix M. Chimera 
and its allies with the brilliant-flowered species have proved 
fruitless."— Veitch, Journ. Hort. Soc. vii. p. 33. 
Respecting Cattleya and Lelia, we find the following :— 
“ Among Cattleyas we find that all the members of the labiata 
group and also the Brazilian species with two-leaved stems, as C. 
intermedia, C. Aclandie, C. superba, &c., cross freely with each 
other and with the Brazilian Lelias, which also cross freely with 
each other. . . . But neither the Cattleyas nor the Brazilian Lelias 
will eross freely with the Mexican Lelia albida, autumnalis, majalis, 
rubescens, &c. Numerous crosses have been effected both ways, 
and capsules have been produced, but the seed has always proved 
barren. Z. anceps appears to be an exception; for it seeds 
freely, whether crossed with a Cattleya or with any of the Braziliau 
Lelias."— Veitch, l. c. p. 29. 
Coming to Cypripedium, the genus which of all others has most 
readily lent itself to the arts of the bybridizer, we find that while 
seedlings have been raised from the Tropical American Selenipe- 
dium caudatum crossed with the Indian Cypripedium barbatum, 
yet attempts to cross the Indian species with the N orth-American 
C. spectabile have not been attended with much success. The 
cross has been attempted several times, and Mr. Seden has ob- 
