SAXIFRAGA. 



beaded rosettes, and the usual fault of stodgy outline and rather creamy 

 tone to the flowers, which are freely borne on their spikes of 6 or 9 

 inches. 



8. X Wallacei. — This is undoubtedly the grandest of our Mossies, 

 whether in growth or habit, in flower or out of flower. And it is a 

 garden hybrid, having nothing whatever to do with S. Camposii, of 

 which catalogues still obstinately persist hi making it a synonym, con- 

 tinuing to perpetuate the original error of the Botanical Magazine, 

 which figured the plant (T. 6640) under the name of 8. Camposii, 

 Boiss. and Reut. — a species at that time not in cultivation, and even 

 now not common. The parentage of 8. X Wallacei remains unknown ; 

 dates make it unlikely that 8. Maweana had any share in it, and one 

 of the most probable parents is 8. trifurcata. With 8. Camposii it 

 has no relationship at all. The hybrid was raised at Edinburgh, from 

 seed purporting to be that of 8. Maweana; but the attribution is 

 unconvincing, if on no other ground than that 8. X Wallacei is said to 

 have been growing at Kew in 1867, whereas 8. Maweana was not in- 

 troduced till 1869. In any case 8. Wallacei is the pride and joy of 

 every garden in every season and situation, with its wide billowing 

 masses of rich and comfortable-looking ample green leaves, cloven 

 five times or more to the base of the blade ; the stems and shoots 

 all have a tendency to redden, and the flowers are pure white, of 

 enormous size and amplitude, produced in generous branching sprays 

 that hide the whole green wave in early summer with a crest of re- 

 fulgent snow. 



S. Willkommiana, Boiss. =S. pentadactylis, q.v. (S. valentina was 

 once reckoned a variety of this, as originally described). 



S. Wulfeniana is very rare indeed in cultivation, being always 

 substituted by 8. retusa, of which, in point of fact, it can only be 

 retained as a stunted and compressed high-alpine form from the 

 Eastern ranges [S. Wulfeniana, Schott=#. retusa, Gouan], standing 

 to the type in much the same relation as 8. Rudolphiana to 8. oppositi- 

 folia, and, as it has the same habits as S. Rudolphiana, possessing also 

 the same difficulties of temper in cultivation, though capable of being 

 made happy if the same exactions are satisfied. When at last it 

 blossoms, it will be seen to differ from the average type of 8. retusa, 

 not only in having a much smaller denser tuft, but also in sending 

 up no spikes, the little rosy stars sitting solitary, almost flat to the 

 cushion, even as do the vinous-purple cups of 8. Rudolphiana. 



S. yunnanensis is a new and unproven Bergenia Saxifrage from 

 Yunnan. 



8. Zeleborii is an obscure species or hybrid in the Aeizoon group, 



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