NOTES ON SOME CURIOSITIES OF ORCHID BREEDING. 447 



(6) Whether these varietal differences are handed down truly 

 from the species to the hybrid depends upon the history of the 

 variety ; if constant it will hand it on truly, if variable it will 

 hand it on as variably. 



(7) There is no intrinsic difference in reversed crosses. 



Pollination and Fertilisation. 

 Having ascertained the ordinary results of the hybridisation 

 of two distinct species, it will perhaps clear the way still further 



Fig. 105. — Sophro-Cattleya x Calypso (Sophronitis grandiflora 9 x 

 Cattleya Loddigesii J). [Gardeners' Chronicle.) 



if we briefly follow out the inner details of pollination and 

 fertilisation, having special regard to recent researches and 

 observations. So far as I know, the most recent work that has 

 been done in Orchids, in regard to the processes of fertilisation, 

 was carried out by Mr. Harry Veitch, F.L.S., 1885-87, the 

 results of which were published in the Journal of the Linncan 

 Society, vol. xxiv. No. 163, p. 395 (also in Veitch's " Manual 

 of Orchids," Part X. p. 83) ; and I am much indebted to Mr. 



