viridi-maculata , hyb. nat. 
327 
several instances have been recorded, namely, between Orchis 
laxijiora and three different species of Serapias , X. Lingua , 
X. cordigera , and 5. longipetala ; also the last named with 
Orchis Morio and 0. militaris ; and 0. Morio with Serapias 
Lingua. Between Lcelia and Cattleya three well-marked 
cases are known ; namely, Lcelia pur pur at a, with both Cattleya 
guttata and C. intermedia , from the province of Santa 
Catharina, S. Brazil; and the last named with Lcdia boothiana , 
from a region somewhat further north. The last of the series 
is a natural hybrid between Cattleya Skinneri and Epidendrum 
aurantiacum , found together with its parents in Guatemala. 
Between Habenaria and Orchis three other examples have 
been recorded, besides the two already mentioned, namely, 
Habenaria Conopsea , with both Orchis latifolia and O.pyrami- 
dalis , and H. odoratissima with O. maculata. 
Under cultivation several other generic hybrids have been 
raised ; namely Sophronitis with Cattleya , Phaius with Ca- 
lanthe. Zygopetalum with Colax , and Hcemaria with Dossinia , 
Macodes, and Ancectochilus , while between Lcdia and Cattleya , 
mentioned above, several other combinations have been 
effected. 
Some of the natural hybrids recorded in books are, to say 
the least, doubtful, but there are many instances of which no 
reasonable doubt can exist, and as four disputed cases have 
been actually confirmed by direct experiment under cultiva- 
tion, we must at least allow that some of the recorded 
instances are genuine, and that by careful examination it is 
possible to trace their origin. 
EXPLANATION OF FIGURES IN PLATE XVIII. 
Illustrating Mr. Rolfe’s paper on Habenari-orchis viridi-maculata. 
Fig. 1. Habenari-orchis viridi-maculata , nat. size, a, flower seen from front; 
b, ditto seen from side ; c, column showing the anther-cells with protruded glands ; 
d, pollinium. 
Fig. 2. Flower of Orchis maculata. e, column of same. 
Fig. 3. Flower of Habenaria viridis. f, column of same. 
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