298 GENERAL REVIEW. 



SECTION IV. 



Purpureum 

 Altaclarense 



Queen Victoria. 



SECTION V. 



Caucasicum 

 Arboreum album 



Coriaccziin. 



SECTION VI. 



Catawbiense \ 

 Large yellow > Deception. 

 Ghent Azalea ) 



SECTION VII. 



Campanulatum 

 Hybrid Maxi- 



mum 



Hybrid Campanu- 

 latum. 



SECTION VIII. 



Bride j 



Dried farina (pollen) of > Result not known." 

 Dalhousieanum ) 



Mr J. Anderson-Henry has drawn attention to the apparently 

 partial hybridity which takes places in Veronicas (see Veronica), 

 and the non-reciprocity of the hybrid union between certain 

 species of Rhododendron (see 'Jour. Royal Hort. Soc.,' 1873, 

 p. 105 : 



" I have no doubt something of the same kind occurs among 

 Rhododendrons. But I may only instance one case where I 

 crossed 'R. Edgworthii on R. caucasicum ; the seedlings, ever 

 few when the cross is a severe one (by which term I mean such 

 instances as where the species do not affect each other kindly), 

 were only two in number ; and though now about ten years old, 

 they show no indications of setting for flower. But while they 

 have both the glabrous foliage of the seed-bearer, and even the 

 ochreous tint underneath, they differ in having pyriform instead 

 of its lanceolate leaves. But though in these particulars they 

 depart from the normal state of R. caucasicum, they have not 

 one feature of R. Edgworthii, the male parent. The other case 

 is where I crossed the same R. Edgu>orthii on R. Jenkinsii. 

 Here the seedlings, again only two in number, resembled the 

 mother, except in having again the pyriform foliage, in which, 

 be it observed, it is a departure from both parents, both having 

 lanceolate leaves, those of R. Jenkinsii being acutely so. The 

 hybrid in this latter case is budded for flower; but the flowers 

 of both parents are white; and both sweet-scented, and among 

 the largest of the genus, though the scent, texture, and forms of 

 the flowers are different ; so that I look for surer tests in the 

 coming flowers, though these may be more perplexing too than 

 any that yet appears. It is proper to observe that I take the 

 utmost precaution in all my crossing operations to prevent 

 miscarriage in any possible way. 



" While treating of my difficulties with this R. Edgu'orthii, 



