456 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



of Capt. Schofield, New Hall, Hey, Eawtenstall, Manchester, 

 who says that " it would be impossible to separate it from a fine 

 form of C. x Godefroyae." (Orchid Review, v. p. 75.) Again, 

 Mr. Statter, of Stand Hall, Whitefield, Manchester, showed 

 at Temple Show, Koyal Horticultural Society, 1897, C. x conco- 

 bellatulum, which " resembled a form of C. x Godefroyae with a 

 yellow ground, and from which it would be difficult to distinguish 

 it." [Gardeners' Chronicle, June 5, 1897, p. 418.) We know 

 that C. concolor and C. x Godefroyae grow together in South 

 Siam (Garden, 1885, p. 342), and that C. bellatulum has also 

 been found in the same district (Ridley Jour. Linn. Soc. Bot. 

 xxxii. (1896), p. 415), so that it is quite possible for the natural 

 hybrid C. x Godefroyae to result therefrom. The undoubted fact 

 too that C. x Godefroyae is only imported in small numbers tends 

 to confirm this. 



On June 15, 1897, Mr. H. Druce, of St. John's Wood, showed 

 at Royal Horticultural Society C. x " Mrs. Druce," raised from 

 C. niveum $ xC. bellatulum^, " the flower of which resembled 

 C. x Godefroyae." (Gardeners' Chronicle, June 19, 1897, p. 411.) 

 We have already seen that C. concolor x C. bellatulum has 

 produced C. x Godefroyae. These facts, therefore, suggest the 

 idea that C. niveum is but a geographical — probably an island — 

 form of C. concolor. 



Viewed in this light Mr. Grey's curious record may not 

 be so impossible as it seems. C. x Godefroyae = (C. concolor 

 -+- C. bellatulum). Therefore C. x Godefroyae $ x C. niveum $ 

 would represent (C. concolor + C. bellatulum) ? x C. niveum $ . 



We have seen that C. niveum and C. concolor are very closely 

 allied, and we know from experience how extremely variable all 

 hybrids are after the first generation, and how common reversions 

 become, so that it may not be so impossible, after all, to raise 

 C. concolor, C. niveum, C. x Godefroyae, C. x G. leucochilum, 



C. x G. pure-white, C. bellatulum, and nearly fifty intermediate 

 forms from C. x Godefroyae $ x C. niveum $ . 



It would be very interesting if someone would repeat the 

 above cross and carefully record the result. 



As with hybrids between species, so it is with crosses be- 

 tween varieties of the same species. For instance, Mr. Norman 

 Cookson crossed Dendrobum nobile nobilius $ with pollen of 



D. D. Cooksoni, and from the same seed-pod flowered u some 



